Merge commit 'xfs/master'

41 files changed, 1042 insertions, 1431 deletions

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index e0519529c26c..169e6c062794 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1532,9 +1532,9 @@ xfs_vm_bmap(
 	struct xfs_inode	*ip = XFS_I(inode);
 
 	xfs_itrace_entry(XFS_I(inode));
-	xfs_rwlock(ip, VRWLOCK_READ);
+	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 	xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF);
-	xfs_rwunlock(ip, VRWLOCK_READ);
+	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 	return generic_block_bmap(mapping, block, xfs_get_blocks);
 }
 
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index ca4f66c4de16..66a9a9e76cbe 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -66,7 +66,7 @@ xfs_fs_encode_fh(
 	int			len;
 
 	/* Directories don't need their parent encoded, they have ".." */
-	if (S_ISDIR(inode->i_mode))
+	if (S_ISDIR(inode->i_mode) || !connectable)
 		fileid_type = FILEID_INO32_GEN;
 	else
 		fileid_type = FILEID_INO32_GEN_PARENT;
@@ -213,17 +213,16 @@ xfs_fs_get_parent(
 	struct dentry		*child)
 {
 	int			error;
-	bhv_vnode_t		*cvp;
+	struct xfs_inode	*cip;
 	struct dentry		*parent;
 
-	cvp = NULL;
-	error = xfs_lookup(XFS_I(child->d_inode), &dotdot, &cvp);
+	error = xfs_lookup(XFS_I(child->d_inode), &dotdot, &cip);
 	if (unlikely(error))
 		return ERR_PTR(-error);
 
-	parent = d_alloc_anon(vn_to_inode(cvp));
+	parent = d_alloc_anon(cip->i_vnode);
 	if (unlikely(!parent)) {
-		VN_RELE(cvp);
+		iput(cip->i_vnode);
 		return ERR_PTR(-ENOMEM);
 	}
 	return parent;
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index edab1ffbb163..05905246434d 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -469,16 +469,11 @@ xfs_file_open_exec(
 	struct inode	*inode)
 {
 	struct xfs_mount *mp = XFS_M(inode->i_sb);
+	struct xfs_inode *ip = XFS_I(inode);
 
-	if (unlikely(mp->m_flags & XFS_MOUNT_DMAPI)) {
-		if (DM_EVENT_ENABLED(XFS_I(inode), DM_EVENT_READ)) {
-			bhv_vnode_t *vp = vn_from_inode(inode);
-
-			return -XFS_SEND_DATA(mp, DM_EVENT_READ,
-						vp, 0, 0, 0, NULL);
-		}
-	}
-
+	if (unlikely(mp->m_flags & XFS_MOUNT_DMAPI) &&
+	             DM_EVENT_ENABLED(ip, DM_EVENT_READ))
+		return -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL);
 	return 0;
 }
 #endif /* HAVE_FOP_OPEN_EXEC */
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index ac6d34cc355d..1eefe61f0e10 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -17,18 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_vnodeops.h"
-
-/*
- * The following six includes are needed so that we can include
- * xfs_inode.h.  What a mess..
- */
 #include "xfs_bmap_btree.h"
-#include "xfs_inum.h"
-#include "xfs_dir2.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
-
 #include "xfs_inode.h"
 
 int  fs_noerr(void) { return 0; }
@@ -42,11 +31,10 @@ xfs_tosspages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
-	struct inode	*inode = vn_to_inode(vp);
+	struct address_space *mapping = ip->i_vnode->i_mapping;
 
-	if (VN_CACHED(vp))
-		truncate_inode_pages(inode->i_mapping, first);
+	if (mapping->nrpages)
+		truncate_inode_pages(mapping, first);
 }
 
 int
@@ -56,15 +44,14 @@ xfs_flushinval_pages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
-	struct inode	*inode = vn_to_inode(vp);
+	struct address_space *mapping = ip->i_vnode->i_mapping;
 	int		ret = 0;
 
-	if (VN_CACHED(vp)) {
+	if (mapping->nrpages) {
 		xfs_iflags_clear(ip, XFS_ITRUNCATED);
-		ret = filemap_write_and_wait(inode->i_mapping);
+		ret = filemap_write_and_wait(mapping);
 		if (!ret)
-			truncate_inode_pages(inode->i_mapping, first);
+			truncate_inode_pages(mapping, first);
 	}
 	return ret;
 }
@@ -77,17 +64,16 @@ xfs_flush_pages(
 	uint64_t	flags,
 	int		fiopt)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
-	struct inode	*inode = vn_to_inode(vp);
+	struct address_space *mapping = ip->i_vnode->i_mapping;
 	int		ret = 0;
 	int		ret2;
 
-	if (VN_DIRTY(vp)) {
+	if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
 		xfs_iflags_clear(ip, XFS_ITRUNCATED);
-		ret = filemap_fdatawrite(inode->i_mapping);
+		ret = filemap_fdatawrite(mapping);
 		if (flags & XFS_B_ASYNC)
 			return ret;
-		ret2 = filemap_fdatawait(inode->i_mapping);
+		ret2 = filemap_fdatawait(mapping);
 		if (!ret)
 			ret = ret2;
 	}
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index a9952e490ac9..7252963281db 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -651,314 +651,6 @@ xfs_attrmulti_by_handle(
 	return -error;
 }
 
-/* prototypes for a few of the stack-hungry cases that have
- * their own functions.  Functions are defined after their use
- * so gcc doesn't get fancy and inline them with -03 */
-
-STATIC int
-xfs_ioc_space(
-	struct xfs_inode	*ip,
-	struct inode		*inode,
-	struct file		*filp,
-	int			flags,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_bulkstat(
-	xfs_mount_t		*mp,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_fsgeometry_v1(
-	xfs_mount_t		*mp,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_fsgeometry(
-	xfs_mount_t		*mp,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_xattr(
-	xfs_inode_t		*ip,
-	struct file		*filp,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_fsgetxattr(
-	xfs_inode_t		*ip,
-	int			attr,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_getbmap(
-	struct xfs_inode	*ip,
-	int			flags,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_getbmapx(
-	struct xfs_inode	*ip,
-	void			__user *arg);
-
-int
-xfs_ioctl(
-	xfs_inode_t		*ip,
-	struct file		*filp,
-	int			ioflags,
-	unsigned int		cmd,
-	void			__user *arg)
-{
-	struct inode		*inode = filp->f_path.dentry->d_inode;
-	xfs_mount_t		*mp = ip->i_mount;
-	int			error;
-
-	xfs_itrace_entry(XFS_I(inode));
-	switch (cmd) {
-
-	case XFS_IOC_ALLOCSP:
-	case XFS_IOC_FREESP:
-	case XFS_IOC_RESVSP:
-	case XFS_IOC_UNRESVSP:
-	case XFS_IOC_ALLOCSP64:
-	case XFS_IOC_FREESP64:
-	case XFS_IOC_RESVSP64:
-	case XFS_IOC_UNRESVSP64:
-		/*
-		 * Only allow the sys admin to reserve space unless
-		 * unwritten extents are enabled.
-		 */
-		if (!XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) &&
-		    !capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg);
-
-	case XFS_IOC_DIOINFO: {
-		struct dioattr	da;
-		xfs_buftarg_t	*target =
-			XFS_IS_REALTIME_INODE(ip) ?
-			mp->m_rtdev_targp : mp->m_ddev_targp;
-
-		da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
-		da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
-
-		if (copy_to_user(arg, &da, sizeof(da)))
-			return -XFS_ERROR(EFAULT);
-		return 0;
-	}
-
-	case XFS_IOC_FSBULKSTAT_SINGLE:
-	case XFS_IOC_FSBULKSTAT:
-	case XFS_IOC_FSINUMBERS:
-		return xfs_ioc_bulkstat(mp, cmd, arg);
-
-	case XFS_IOC_FSGEOMETRY_V1:
-		return xfs_ioc_fsgeometry_v1(mp, arg);
-
-	case XFS_IOC_FSGEOMETRY:
-		return xfs_ioc_fsgeometry(mp, arg);
-
-	case XFS_IOC_GETVERSION:
-		return put_user(inode->i_generation, (int __user *)arg);
-
-	case XFS_IOC_FSGETXATTR:
-		return xfs_ioc_fsgetxattr(ip, 0, arg);
-	case XFS_IOC_FSGETXATTRA:
-		return xfs_ioc_fsgetxattr(ip, 1, arg);
-	case XFS_IOC_GETXFLAGS:
-	case XFS_IOC_SETXFLAGS:
-	case XFS_IOC_FSSETXATTR:
-		return xfs_ioc_xattr(ip, filp, cmd, arg);
-
-	case XFS_IOC_FSSETDM: {
-		struct fsdmidata	dmi;
-
-		if (copy_from_user(&dmi, arg, sizeof(dmi)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask,
-				dmi.fsd_dmstate);
-		return -error;
-	}
-
-	case XFS_IOC_GETBMAP:
-	case XFS_IOC_GETBMAPA:
-		return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
-
-	case XFS_IOC_GETBMAPX:
-		return xfs_ioc_getbmapx(ip, arg);
-
-	case XFS_IOC_FD_TO_HANDLE:
-	case XFS_IOC_PATH_TO_HANDLE:
-	case XFS_IOC_PATH_TO_FSHANDLE:
-		return xfs_find_handle(cmd, arg);
-
-	case XFS_IOC_OPEN_BY_HANDLE:
-		return xfs_open_by_handle(mp, arg, filp, inode);
-
-	case XFS_IOC_FSSETDM_BY_HANDLE:
-		return xfs_fssetdm_by_handle(mp, arg, inode);
-
-	case XFS_IOC_READLINK_BY_HANDLE:
-		return xfs_readlink_by_handle(mp, arg, inode);
-
-	case XFS_IOC_ATTRLIST_BY_HANDLE:
-		return xfs_attrlist_by_handle(mp, arg, inode);
-
-	case XFS_IOC_ATTRMULTI_BY_HANDLE:
-		return xfs_attrmulti_by_handle(mp, arg, inode);
-
-	case XFS_IOC_SWAPEXT: {
-		error = xfs_swapext((struct xfs_swapext __user *)arg);
-		return -error;
-	}
-
-	case XFS_IOC_FSCOUNTS: {
-		xfs_fsop_counts_t out;
-
-		error = xfs_fs_counts(mp, &out);
-		if (error)
-			return -error;
-
-		if (copy_to_user(arg, &out, sizeof(out)))
-			return -XFS_ERROR(EFAULT);
-		return 0;
-	}
-
-	case XFS_IOC_SET_RESBLKS: {
-		xfs_fsop_resblks_t inout;
-		__uint64_t	   in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&inout, arg, sizeof(inout)))
-			return -XFS_ERROR(EFAULT);
-
-		/* input parameter is passed in resblks field of structure */
-		in = inout.resblks;
-		error = xfs_reserve_blocks(mp, &in, &inout);
-		if (error)
-			return -error;
-
-		if (copy_to_user(arg, &inout, sizeof(inout)))
-			return -XFS_ERROR(EFAULT);
-		return 0;
-	}
-
-	case XFS_IOC_GET_RESBLKS: {
-		xfs_fsop_resblks_t out;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		error = xfs_reserve_blocks(mp, NULL, &out);
-		if (error)
-			return -error;
-
-		if (copy_to_user(arg, &out, sizeof(out)))
-			return -XFS_ERROR(EFAULT);
-
-		return 0;
-	}
-
-	case XFS_IOC_FSGROWFSDATA: {
-		xfs_growfs_data_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_growfs_data(mp, &in);
-		return -error;
-	}
-
-	case XFS_IOC_FSGROWFSLOG: {
-		xfs_growfs_log_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_growfs_log(mp, &in);
-		return -error;
-	}
-
-	case XFS_IOC_FSGROWFSRT: {
-		xfs_growfs_rt_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_growfs_rt(mp, &in);
-		return -error;
-	}
-
-	case XFS_IOC_FREEZE:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (inode->i_sb->s_frozen == SB_UNFROZEN)
-			freeze_bdev(inode->i_sb->s_bdev);
-		return 0;
-
-	case XFS_IOC_THAW:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		if (inode->i_sb->s_frozen != SB_UNFROZEN)
-			thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
-		return 0;
-
-	case XFS_IOC_GOINGDOWN: {
-		__uint32_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (get_user(in, (__uint32_t __user *)arg))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_fs_goingdown(mp, in);
-		return -error;
-	}
-
-	case XFS_IOC_ERROR_INJECTION: {
-		xfs_error_injection_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_errortag_add(in.errtag, mp);
-		return -error;
-	}
-
-	case XFS_IOC_ERROR_CLEARALL:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		error = xfs_errortag_clearall(mp, 1);
-		return -error;
-
-	default:
-		return -ENOTTY;
-	}
-}
-
 STATIC int
 xfs_ioc_space(
 	struct xfs_inode	*ip,
@@ -1332,3 +1024,257 @@ xfs_ioc_getbmapx(
 
 	return 0;
 }
+
+int
+xfs_ioctl(
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	int			ioflags,
+	unsigned int		cmd,
+	void			__user *arg)
+{
+	struct inode		*inode = filp->f_path.dentry->d_inode;
+	xfs_mount_t		*mp = ip->i_mount;
+	int			error;
+
+	xfs_itrace_entry(XFS_I(inode));
+	switch (cmd) {
+
+	case XFS_IOC_ALLOCSP:
+	case XFS_IOC_FREESP:
+	case XFS_IOC_RESVSP:
+	case XFS_IOC_UNRESVSP:
+	case XFS_IOC_ALLOCSP64:
+	case XFS_IOC_FREESP64:
+	case XFS_IOC_RESVSP64:
+	case XFS_IOC_UNRESVSP64:
+		/*
+		 * Only allow the sys admin to reserve space unless
+		 * unwritten extents are enabled.
+		 */
+		if (!xfs_sb_version_hasextflgbit(&mp->m_sb) &&
+		    !capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg);
+
+	case XFS_IOC_DIOINFO: {
+		struct dioattr	da;
+		xfs_buftarg_t	*target =
+			XFS_IS_REALTIME_INODE(ip) ?
+			mp->m_rtdev_targp : mp->m_ddev_targp;
+
+		da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
+		da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
+
+		if (copy_to_user(arg, &da, sizeof(da)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_FSBULKSTAT_SINGLE:
+	case XFS_IOC_FSBULKSTAT:
+	case XFS_IOC_FSINUMBERS:
+		return xfs_ioc_bulkstat(mp, cmd, arg);
+
+	case XFS_IOC_FSGEOMETRY_V1:
+		return xfs_ioc_fsgeometry_v1(mp, arg);
+
+	case XFS_IOC_FSGEOMETRY:
+		return xfs_ioc_fsgeometry(mp, arg);
+
+	case XFS_IOC_GETVERSION:
+		return put_user(inode->i_generation, (int __user *)arg);
+
+	case XFS_IOC_FSGETXATTR:
+		return xfs_ioc_fsgetxattr(ip, 0, arg);
+	case XFS_IOC_FSGETXATTRA:
+		return xfs_ioc_fsgetxattr(ip, 1, arg);
+	case XFS_IOC_GETXFLAGS:
+	case XFS_IOC_SETXFLAGS:
+	case XFS_IOC_FSSETXATTR:
+		return xfs_ioc_xattr(ip, filp, cmd, arg);
+
+	case XFS_IOC_FSSETDM: {
+		struct fsdmidata	dmi;
+
+		if (copy_from_user(&dmi, arg, sizeof(dmi)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask,
+				dmi.fsd_dmstate);
+		return -error;
+	}
+
+	case XFS_IOC_GETBMAP:
+	case XFS_IOC_GETBMAPA:
+		return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
+
+	case XFS_IOC_GETBMAPX:
+		return xfs_ioc_getbmapx(ip, arg);
+
+	case XFS_IOC_FD_TO_HANDLE:
+	case XFS_IOC_PATH_TO_HANDLE:
+	case XFS_IOC_PATH_TO_FSHANDLE:
+		return xfs_find_handle(cmd, arg);
+
+	case XFS_IOC_OPEN_BY_HANDLE:
+		return xfs_open_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_FSSETDM_BY_HANDLE:
+		return xfs_fssetdm_by_handle(mp, arg, inode);
+
+	case XFS_IOC_READLINK_BY_HANDLE:
+		return xfs_readlink_by_handle(mp, arg, inode);
+
+	case XFS_IOC_ATTRLIST_BY_HANDLE:
+		return xfs_attrlist_by_handle(mp, arg, inode);
+
+	case XFS_IOC_ATTRMULTI_BY_HANDLE:
+		return xfs_attrmulti_by_handle(mp, arg, inode);
+
+	case XFS_IOC_SWAPEXT: {
+		error = xfs_swapext((struct xfs_swapext __user *)arg);
+		return -error;
+	}
+
+	case XFS_IOC_FSCOUNTS: {
+		xfs_fsop_counts_t out;
+
+		error = xfs_fs_counts(mp, &out);
+		if (error)
+			return -error;
+
+		if (copy_to_user(arg, &out, sizeof(out)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_SET_RESBLKS: {
+		xfs_fsop_resblks_t inout;
+		__uint64_t	   in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&inout, arg, sizeof(inout)))
+			return -XFS_ERROR(EFAULT);
+
+		/* input parameter is passed in resblks field of structure */
+		in = inout.resblks;
+		error = xfs_reserve_blocks(mp, &in, &inout);
+		if (error)
+			return -error;
+
+		if (copy_to_user(arg, &inout, sizeof(inout)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_GET_RESBLKS: {
+		xfs_fsop_resblks_t out;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		error = xfs_reserve_blocks(mp, NULL, &out);
+		if (error)
+			return -error;
+
+		if (copy_to_user(arg, &out, sizeof(out)))
+			return -XFS_ERROR(EFAULT);
+
+		return 0;
+	}
+
+	case XFS_IOC_FSGROWFSDATA: {
+		xfs_growfs_data_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_data(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FSGROWFSLOG: {
+		xfs_growfs_log_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_log(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FSGROWFSRT: {
+		xfs_growfs_rt_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_rt(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FREEZE:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (inode->i_sb->s_frozen == SB_UNFROZEN)
+			freeze_bdev(inode->i_sb->s_bdev);
+		return 0;
+
+	case XFS_IOC_THAW:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+		if (inode->i_sb->s_frozen != SB_UNFROZEN)
+			thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
+		return 0;
+
+	case XFS_IOC_GOINGDOWN: {
+		__uint32_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (get_user(in, (__uint32_t __user *)arg))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_fs_goingdown(mp, in);
+		return -error;
+	}
+
+	case XFS_IOC_ERROR_INJECTION: {
+		xfs_error_injection_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_errortag_add(in.errtag, mp);
+		return -error;
+	}
+
+	case XFS_IOC_ERROR_CLEARALL:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		error = xfs_errortag_clearall(mp, 1);
+		return -error;
+
+	default:
+		return -ENOTTY;
+	}
+}
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index cc4abd3daa49..53f8feb28e58 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -62,12 +62,11 @@ void
 xfs_synchronize_atime(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp;
+	struct inode	*inode = ip->i_vnode;
 
-	vp = XFS_ITOV_NULL(ip);
-	if (vp) {
-		ip->i_d.di_atime.t_sec = (__int32_t)vp->i_atime.tv_sec;
-		ip->i_d.di_atime.t_nsec = (__int32_t)vp->i_atime.tv_nsec;
+	if (inode) {
+		ip->i_d.di_atime.t_sec = (__int32_t)inode->i_atime.tv_sec;
+		ip->i_d.di_atime.t_nsec = (__int32_t)inode->i_atime.tv_nsec;
 	}
 }
 
@@ -80,11 +79,10 @@ void
 xfs_mark_inode_dirty_sync(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp;
+	struct inode	*inode = ip->i_vnode;
 
-	vp = XFS_ITOV_NULL(ip);
-	if (vp)
-		mark_inode_dirty_sync(vn_to_inode(vp));
+	if (inode)
+		mark_inode_dirty_sync(inode);
 }
 
 /*
@@ -215,48 +213,36 @@ xfs_validate_fields(
  */
 STATIC int
 xfs_init_security(
-	bhv_vnode_t	*vp,
+	struct inode	*inode,
 	struct inode	*dir)
 {
-	struct inode	*ip = vn_to_inode(vp);
+	struct xfs_inode *ip = XFS_I(inode);
 	size_t		length;
 	void		*value;
 	char		*name;
 	int		error;
 
-	error = security_inode_init_security(ip, dir, &name, &value, &length);
+	error = security_inode_init_security(inode, dir, &name,
+					     &value, &length);
 	if (error) {
 		if (error == -EOPNOTSUPP)
 			return 0;
 		return -error;
 	}
 
-	error = xfs_attr_set(XFS_I(ip), name, value,
-			length, ATTR_SECURE);
+	error = xfs_attr_set(ip, name, value, length, ATTR_SECURE);
 	if (!error)
-		xfs_iflags_set(XFS_I(ip), XFS_IMODIFIED);
+		xfs_iflags_set(ip, XFS_IMODIFIED);
 
 	kfree(name);
 	kfree(value);
 	return error;
 }
 
-/*
- * Determine whether a process has a valid fs_struct (kernel daemons
- * like knfsd don't have an fs_struct).
- *
- * XXX(hch):  nfsd is broken, better fix it instead.
- */
-STATIC_INLINE int
-xfs_has_fs_struct(struct task_struct *task)
-{
-	return (task->fs != init_task.fs);
-}
-
 STATIC void
 xfs_cleanup_inode(
 	struct inode	*dir,
-	bhv_vnode_t	*vp,
+	struct inode	*inode,
 	struct dentry	*dentry,
 	int		mode)
 {
@@ -267,14 +253,14 @@ xfs_cleanup_inode(
 	 * xfs_init_security we must back out.
 	 * ENOSPC can hit here, among other things.
 	 */
-	teardown.d_inode = vn_to_inode(vp);
+	teardown.d_inode = inode;
 	teardown.d_name = dentry->d_name;
 
 	if (S_ISDIR(mode))
 		xfs_rmdir(XFS_I(dir), &teardown);
 	else
 		xfs_remove(XFS_I(dir), &teardown);
-	VN_RELE(vp);
+	iput(inode);
 }
 
 STATIC int
@@ -284,8 +270,8 @@ xfs_vn_mknod(
 	int		mode,
 	dev_t		rdev)
 {
-	struct inode	*ip;
-	bhv_vnode_t	*vp = NULL, *dvp = vn_from_inode(dir);
+	struct inode	*inode;
+	struct xfs_inode *ip = NULL;
 	xfs_acl_t	*default_acl = NULL;
 	attrexists_t	test_default_acl = _ACL_DEFAULT_EXISTS;
 	int		error;
@@ -297,59 +283,65 @@ xfs_vn_mknod(
 	if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
 		return -EINVAL;
 
-	if (unlikely(test_default_acl && test_default_acl(dvp))) {
+	if (test_default_acl && test_default_acl(dir)) {
 		if (!_ACL_ALLOC(default_acl)) {
 			return -ENOMEM;
 		}
-		if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
+		if (!_ACL_GET_DEFAULT(dir, default_acl)) {
 			_ACL_FREE(default_acl);
 			default_acl = NULL;
 		}
 	}
 
-	if (IS_POSIXACL(dir) && !default_acl && xfs_has_fs_struct(current))
+	if (IS_POSIXACL(dir) && !default_acl)
 		mode &= ~current->fs->umask;
 
 	switch (mode & S_IFMT) {
-	case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
+	case S_IFCHR:
+	case S_IFBLK:
+	case S_IFIFO:
+	case S_IFSOCK:
 		rdev = sysv_encode_dev(rdev);
 	case S_IFREG:
-		error = xfs_create(XFS_I(dir), dentry, mode, rdev, &vp, NULL);
+		error = xfs_create(XFS_I(dir), dentry, mode, rdev, &ip, NULL);
 		break;
 	case S_IFDIR:
-		error = xfs_mkdir(XFS_I(dir), dentry, mode, &vp, NULL);
+		error = xfs_mkdir(XFS_I(dir), dentry, mode, &ip, NULL);
 		break;
 	default:
 		error = EINVAL;
 		break;
 	}
 
-	if (unlikely(!error)) {
-		error = xfs_init_security(vp, dir);
-		if (error)
-			xfs_cleanup_inode(dir, vp, dentry, mode);
-	}
+	if (unlikely(error))
+		goto out_free_acl;
 
-	if (unlikely(default_acl)) {
-		if (!error) {
-			error = _ACL_INHERIT(vp, mode, default_acl);
-			if (!error)
-				xfs_iflags_set(XFS_I(vp), XFS_IMODIFIED);
-			else
-				xfs_cleanup_inode(dir, vp, dentry, mode);
-		}
+	inode = ip->i_vnode;
+
+	error = xfs_init_security(inode, dir);
+	if (unlikely(error))
+		goto out_cleanup_inode;
+
+	if (default_acl) {
+		error = _ACL_INHERIT(inode, mode, default_acl);
+		if (unlikely(error))
+			goto out_cleanup_inode;
+		xfs_iflags_set(ip, XFS_IMODIFIED);
 		_ACL_FREE(default_acl);
 	}
 
-	if (likely(!error)) {
-		ASSERT(vp);
-		ip = vn_to_inode(vp);
 
-		if (S_ISDIR(mode))
-			xfs_validate_fields(ip);
-		d_instantiate(dentry, ip);
-		xfs_validate_fields(dir);
-	}
+	if (S_ISDIR(mode))
+		xfs_validate_fields(inode);
+	d_instantiate(dentry, inode);
+	xfs_validate_fields(dir);
+	return -error;
+
+ out_cleanup_inode:
+	xfs_cleanup_inode(dir, inode, dentry, mode);
+ out_free_acl:
+	if (default_acl)
+		_ACL_FREE(default_acl);
 	return -error;
 }
 
@@ -378,13 +370,13 @@ xfs_vn_lookup(
 	struct dentry	*dentry,
 	struct nameidata *nd)
 {
-	bhv_vnode_t	*cvp;
+	struct xfs_inode *cip;
 	int		error;
 
 	if (dentry->d_name.len >= MAXNAMELEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	error = xfs_lookup(XFS_I(dir), dentry, &cvp);
+	error = xfs_lookup(XFS_I(dir), dentry, &cip);
 	if (unlikely(error)) {
 		if (unlikely(error != ENOENT))
 			return ERR_PTR(-error);
@@ -392,7 +384,7 @@ xfs_vn_lookup(
 		return NULL;
 	}
 
-	return d_splice_alias(vn_to_inode(cvp), dentry);
+	return d_splice_alias(cip->i_vnode, dentry);
 }
 
 STATIC int
@@ -401,23 +393,22 @@ xfs_vn_link(
 	struct inode	*dir,
 	struct dentry	*dentry)
 {
-	struct inode	*ip;	/* inode of guy being linked to */
-	bhv_vnode_t	*vp;	/* vp of name being linked */
+	struct inode	*inode;	/* inode of guy being linked to */
 	int		error;
 
-	ip = old_dentry->d_inode;	/* inode being linked to */
-	vp = vn_from_inode(ip);
+	inode = old_dentry->d_inode;
 
-	VN_HOLD(vp);
-	error = xfs_link(XFS_I(dir), vp, dentry);
+	igrab(inode);
+	error = xfs_link(XFS_I(dir), XFS_I(inode), dentry);
 	if (unlikely(error)) {
-		VN_RELE(vp);
-	} else {
-		xfs_iflags_set(XFS_I(dir), XFS_IMODIFIED);
-		xfs_validate_fields(ip);
-		d_instantiate(dentry, ip);
+		iput(inode);
+		return -error;
 	}
-	return -error;
+
+	xfs_iflags_set(XFS_I(dir), XFS_IMODIFIED);
+	xfs_validate_fields(inode);
+	d_instantiate(dentry, inode);
+	return 0;
 }
 
 STATIC int
@@ -444,29 +435,33 @@ xfs_vn_symlink(
 	struct dentry	*dentry,
 	const char	*symname)
 {
-	struct inode	*ip;
-	bhv_vnode_t	*cvp;	/* used to lookup symlink to put in dentry */
+	struct inode	*inode;
+	struct xfs_inode *cip = NULL;
 	int		error;
 	mode_t		mode;
 
-	cvp = NULL;
-
 	mode = S_IFLNK |
 		(irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO);
 
 	error = xfs_symlink(XFS_I(dir), dentry, (char *)symname, mode,
-			    &cvp, NULL);
-	if (likely(!error && cvp)) {
-		error = xfs_init_security(cvp, dir);
-		if (likely(!error)) {
-			ip = vn_to_inode(cvp);
-			d_instantiate(dentry, ip);
-			xfs_validate_fields(dir);
-			xfs_validate_fields(ip);
-		} else {
-			xfs_cleanup_inode(dir, cvp, dentry, 0);
-		}
-	}
+			    &cip, NULL);
+	if (unlikely(error))
+		goto out;
+
+	inode = cip->i_vnode;
+
+	error = xfs_init_security(inode, dir);
+	if (unlikely(error))
+		goto out_cleanup_inode;
+
+	d_instantiate(dentry, inode);
+	xfs_validate_fields(dir);
+	xfs_validate_fields(inode);
+	return 0;
+
+ out_cleanup_inode:
+	xfs_cleanup_inode(dir, inode, dentry, 0);
+ out:
 	return -error;
 }
 
@@ -494,12 +489,9 @@ xfs_vn_rename(
 	struct dentry	*ndentry)
 {
 	struct inode	*new_inode = ndentry->d_inode;
-	bhv_vnode_t	*tvp;	/* target directory */
 	int		error;
 
-	tvp = vn_from_inode(ndir);
-
-	error = xfs_rename(XFS_I(odir), odentry, tvp, ndentry);
+	error = xfs_rename(XFS_I(odir), odentry, XFS_I(ndir), ndentry);
 	if (likely(!error)) {
 		if (new_inode)
 			xfs_validate_fields(new_inode);
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 3ca39c4e5d2a..e5143323e71f 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -99,7 +99,6 @@
 /*
  * Feature macros (disable/enable)
  */
-#undef  HAVE_REFCACHE	/* reference cache not needed for NFS in 2.6 */
 #define HAVE_SPLICE	/* a splice(2) exists in 2.6, but not in 2.4 */
 #ifdef CONFIG_SMP
 #define HAVE_PERCPU_SB	/* per cpu superblock counters are a 2.6 feature */
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 166353388490..1d95dca96cfe 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -176,7 +176,6 @@ xfs_read(
 {
 	struct file		*file = iocb->ki_filp;
 	struct inode		*inode = file->f_mapping->host;
-	bhv_vnode_t		*vp = XFS_ITOV(ip);
 	xfs_mount_t		*mp = ip->i_mount;
 	size_t			size = 0;
 	ssize_t			ret = 0;
@@ -228,11 +227,11 @@ xfs_read(
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
-		bhv_vrwlock_t locktype = VRWLOCK_READ;
 		int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
+		int iolock = XFS_IOLOCK_SHARED;
 
-		ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, vp, *offset, size,
-					dmflags, &locktype);
+		ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *offset, size,
+					dmflags, &iolock);
 		if (ret) {
 			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 			if (unlikely(ioflags & IO_ISDIRECT))
@@ -242,7 +241,7 @@ xfs_read(
 	}
 
 	if (unlikely(ioflags & IO_ISDIRECT)) {
-		if (VN_CACHED(vp))
+		if (inode->i_mapping->nrpages)
 			ret = xfs_flushinval_pages(ip, (*offset & PAGE_CACHE_MASK),
 						    -1, FI_REMAPF_LOCKED);
 		mutex_unlock(&inode->i_mutex);
@@ -276,7 +275,6 @@ xfs_splice_read(
 	int			flags,
 	int			ioflags)
 {
-	bhv_vnode_t		*vp = XFS_ITOV(ip);
 	xfs_mount_t		*mp = ip->i_mount;
 	ssize_t			ret;
 
@@ -287,11 +285,11 @@ xfs_splice_read(
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
-		bhv_vrwlock_t locktype = VRWLOCK_READ;
+		int iolock = XFS_IOLOCK_SHARED;
 		int error;
 
-		error = XFS_SEND_DATA(mp, DM_EVENT_READ, vp, *ppos, count,
-					FILP_DELAY_FLAG(infilp), &locktype);
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count,
+					FILP_DELAY_FLAG(infilp), &iolock);
 		if (error) {
 			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 			return -error;
@@ -317,7 +315,6 @@ xfs_splice_write(
 	int			flags,
 	int			ioflags)
 {
-	bhv_vnode_t		*vp = XFS_ITOV(ip);
 	xfs_mount_t		*mp = ip->i_mount;
 	ssize_t			ret;
 	struct inode		*inode = outfilp->f_mapping->host;
@@ -330,11 +327,11 @@ xfs_splice_write(
 	xfs_ilock(ip, XFS_IOLOCK_EXCL);
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) {
-		bhv_vrwlock_t locktype = VRWLOCK_WRITE;
+		int iolock = XFS_IOLOCK_EXCL;
 		int error;
 
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, vp, *ppos, count,
-					FILP_DELAY_FLAG(outfilp), &locktype);
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count,
+					FILP_DELAY_FLAG(outfilp), &iolock);
 		if (error) {
 			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 			return -error;
@@ -573,14 +570,12 @@ xfs_write(
 	struct file		*file = iocb->ki_filp;
 	struct address_space	*mapping = file->f_mapping;
 	struct inode		*inode = mapping->host;
-	bhv_vnode_t		*vp = XFS_ITOV(xip);
 	unsigned long		segs = nsegs;
 	xfs_mount_t		*mp;
 	ssize_t			ret = 0, error = 0;
 	xfs_fsize_t		isize, new_size;
 	int			iolock;
 	int			eventsent = 0;
-	bhv_vrwlock_t		locktype;
 	size_t			ocount = 0, count;
 	loff_t			pos;
 	int			need_i_mutex;
@@ -607,11 +602,9 @@ xfs_write(
 relock:
 	if (ioflags & IO_ISDIRECT) {
 		iolock = XFS_IOLOCK_SHARED;
-		locktype = VRWLOCK_WRITE_DIRECT;
 		need_i_mutex = 0;
 	} else {
 		iolock = XFS_IOLOCK_EXCL;
-		locktype = VRWLOCK_WRITE;
 		need_i_mutex = 1;
 		mutex_lock(&inode->i_mutex);
 	}
@@ -634,9 +627,8 @@ start:
 			dmflags |= DM_FLAGS_IMUX;
 
 		xfs_iunlock(xip, XFS_ILOCK_EXCL);
-		error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
-				      pos, count,
-				      dmflags, &locktype);
+		error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, xip,
+				      pos, count, dmflags, &iolock);
 		if (error) {
 			goto out_unlock_internal;
 		}
@@ -664,10 +656,9 @@ start:
 			return XFS_ERROR(-EINVAL);
 		}
 
-		if (!need_i_mutex && (VN_CACHED(vp) || pos > xip->i_size)) {
+		if (!need_i_mutex && (mapping->nrpages || pos > xip->i_size)) {
 			xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
 			iolock = XFS_IOLOCK_EXCL;
-			locktype = VRWLOCK_WRITE;
 			need_i_mutex = 1;
 			mutex_lock(&inode->i_mutex);
 			xfs_ilock(xip, XFS_ILOCK_EXCL|iolock);
@@ -727,7 +718,7 @@ retry:
 	current->backing_dev_info = mapping->backing_dev_info;
 
 	if ((ioflags & IO_ISDIRECT)) {
-		if (VN_CACHED(vp)) {
+		if (mapping->nrpages) {
 			WARN_ON(need_i_mutex == 0);
 			xfs_inval_cached_trace(xip, pos, -1,
 					(pos & PAGE_CACHE_MASK), -1);
@@ -744,7 +735,6 @@ retry:
 			mutex_unlock(&inode->i_mutex);
 
 			iolock = XFS_IOLOCK_SHARED;
-			locktype = VRWLOCK_WRITE_DIRECT;
 			need_i_mutex = 0;
 		}
 
@@ -781,15 +771,15 @@ retry:
 
 	if (ret == -ENOSPC &&
 	    DM_EVENT_ENABLED(xip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) {
-		xfs_rwunlock(xip, locktype);
+		xfs_iunlock(xip, iolock);
 		if (need_i_mutex)
 			mutex_unlock(&inode->i_mutex);
-		error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
-				DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
+		error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, xip,
+				DM_RIGHT_NULL, xip, DM_RIGHT_NULL, NULL, NULL,
 				0, 0, 0); /* Delay flag intentionally  unused */
 		if (need_i_mutex)
 			mutex_lock(&inode->i_mutex);
-		xfs_rwlock(xip, locktype);
+		xfs_ilock(xip, iolock);
 		if (error)
 			goto out_unlock_internal;
 		pos = xip->i_size;
@@ -817,7 +807,8 @@ retry:
 	/* Handle various SYNC-type writes */
 	if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
 		int error2;
-		xfs_rwunlock(xip, locktype);
+
+		xfs_iunlock(xip, iolock);
 		if (need_i_mutex)
 			mutex_unlock(&inode->i_mutex);
 		error2 = sync_page_range(inode, mapping, pos, ret);
@@ -825,7 +816,7 @@ retry:
 			error = error2;
 		if (need_i_mutex)
 			mutex_lock(&inode->i_mutex);
-		xfs_rwlock(xip, locktype);
+		xfs_ilock(xip, iolock);
 		error2 = xfs_write_sync_logforce(mp, xip);
 		if (!error)
 			error = error2;
@@ -846,7 +837,7 @@ retry:
 			xip->i_d.di_size = xip->i_size;
 		xfs_iunlock(xip, XFS_ILOCK_EXCL);
 	}
-	xfs_rwunlock(xip, locktype);
+	xfs_iunlock(xip, iolock);
  out_unlock_mutex:
 	if (need_i_mutex)
 		mutex_unlock(&inode->i_mutex);
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 8831d9518790..cb9ce90d1deb 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -896,7 +896,8 @@ xfs_fs_write_inode(
 	struct inode		*inode,
 	int			sync)
 {
-	int			error = 0, flags = FLUSH_INODE;
+	int			error = 0;
+	int			flags = 0;
 
 	xfs_itrace_entry(XFS_I(inode));
 	if (sync) {
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index b5ea418693b1..4ed5914adefb 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -46,18 +46,6 @@ static inline struct inode *vn_to_inode(bhv_vnode_t *vnode)
 }
 
 /*
- * Values for the vop_rwlock/rwunlock flags parameter.
- */
-typedef enum bhv_vrwlock {
-	VRWLOCK_NONE,
-	VRWLOCK_READ,
-	VRWLOCK_WRITE,
-	VRWLOCK_WRITE_DIRECT,
-	VRWLOCK_TRY_READ,
-	VRWLOCK_TRY_WRITE
-} bhv_vrwlock_t;
-
-/*
  * Return values for xfs_inactive.  A return value of
  * VN_INACTIVE_NOCACHE implies that the file system behavior
  * has disassociated its state and bhv_desc_t from the vnode.
@@ -73,12 +61,9 @@ typedef enum bhv_vrwlock {
 #define IO_INVIS	0x00020		/* don't update inode timestamps */
 
 /*
- * Flags for vop_iflush call
+ * Flags for xfs_inode_flush
  */
 #define FLUSH_SYNC		1	/* wait for flush to complete	*/
-#define FLUSH_INODE		2	/* flush the inode itself	*/
-#define FLUSH_LOG		4	/* force the last log entry for
-					 * this inode out to disk	*/
 
 /*
  * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
@@ -230,7 +215,7 @@ static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
  */
 #define VNAME(dentry)		((char *) (dentry)->d_name.name)
 #define VNAMELEN(dentry)	((dentry)->d_name.len)
-#define VNAME_TO_VNODE(dentry)	(vn_from_inode((dentry)->d_inode))
+#define VNAME_TO_INODE(dentry)	(XFS_I((dentry)->d_inode))
 
 /*
  * Dealing with bad inodes
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 1f3da5b8657b..8e9c5ae6504d 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1405,13 +1405,13 @@ xfs_qm_qino_alloc(
 #if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
 		unsigned oldv = mp->m_sb.sb_versionnum;
 #endif
-		ASSERT(!XFS_SB_VERSION_HASQUOTA(&mp->m_sb));
+		ASSERT(!xfs_sb_version_hasquota(&mp->m_sb));
 		ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
 				   XFS_SB_GQUOTINO | XFS_SB_QFLAGS)) ==
 		       (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
 			XFS_SB_GQUOTINO | XFS_SB_QFLAGS));
 
-		XFS_SB_VERSION_ADDQUOTA(&mp->m_sb);
+		xfs_sb_version_addquota(&mp->m_sb);
 		mp->m_sb.sb_uquotino = NULLFSINO;
 		mp->m_sb.sb_gquotino = NULLFSINO;
 
@@ -1954,7 +1954,7 @@ xfs_qm_init_quotainos(
 	/*
 	 * Get the uquota and gquota inodes
 	 */
-	if (XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) {
+	if (xfs_sb_version_hasquota(&mp->m_sb)) {
 		if (XFS_IS_UQUOTA_ON(mp) &&
 		    mp->m_sb.sb_uquotino != NULLFSINO) {
 			ASSERT(mp->m_sb.sb_uquotino > 0);
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index 97bb32937585..f4f6c4c861d7 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -118,7 +118,7 @@ xfs_qm_newmount(
 	*quotaflags = 0;
 	*needquotamount = B_FALSE;
 
-	quotaondisk = XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+	quotaondisk = xfs_sb_version_hasquota(&mp->m_sb) &&
 				(mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT);
 
 	if (quotaondisk) {
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 2cc5886cfe85..d2b8be7e75f9 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -377,7 +377,7 @@ xfs_qm_scall_trunc_qfiles(
 	if (!capable(CAP_SYS_ADMIN))
 		return XFS_ERROR(EPERM);
 	error = 0;
-	if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0) {
+	if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
 		qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
 		return XFS_ERROR(EINVAL);
 	}
@@ -522,7 +522,7 @@ xfs_qm_scall_getqstat(
 	memset(out, 0, sizeof(fs_quota_stat_t));
 
 	out->qs_version = FS_QSTAT_VERSION;
-	if (! XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) {
+	if (!xfs_sb_version_hasquota(&mp->m_sb)) {
 		out->qs_uquota.qfs_ino = NULLFSINO;
 		out->qs_gquota.qfs_ino = NULLFSINO;
 		return (0);
diff --git a/fs/xfs/support/ktrace.c b/fs/xfs/support/ktrace.c
index 129067cfcb86..0b75d302508f 100644
--- a/fs/xfs/support/ktrace.c
+++ b/fs/xfs/support/ktrace.c
@@ -24,7 +24,7 @@ static int          ktrace_zentries;
 void __init
 ktrace_init(int zentries)
 {
-	ktrace_zentries = zentries;
+	ktrace_zentries = roundup_pow_of_two(zentries);
 
 	ktrace_hdr_zone = kmem_zone_init(sizeof(ktrace_t),
 					"ktrace_hdr");
@@ -47,13 +47,16 @@ ktrace_uninit(void)
  * ktrace_alloc()
  *
  * Allocate a ktrace header and enough buffering for the given
- * number of entries.
+ * number of entries. Round the number of entries up to a
+ * power of 2 so we can do fast masking to get the index from
+ * the atomic index counter.
  */
 ktrace_t *
 ktrace_alloc(int nentries, unsigned int __nocast sleep)
 {
 	ktrace_t        *ktp;
 	ktrace_entry_t  *ktep;
+	int		entries;
 
 	ktp = (ktrace_t*)kmem_zone_alloc(ktrace_hdr_zone, sleep);
 
@@ -70,11 +73,12 @@ ktrace_alloc(int nentries, unsigned int __nocast sleep)
 	/*
 	 * Special treatment for buffers with the ktrace_zentries entries
 	 */
-	if (nentries == ktrace_zentries) {
+	entries = roundup_pow_of_two(nentries);
+	if (entries == ktrace_zentries) {
 		ktep = (ktrace_entry_t*)kmem_zone_zalloc(ktrace_ent_zone,
 							    sleep);
 	} else {
-		ktep = (ktrace_entry_t*)kmem_zalloc((nentries * sizeof(*ktep)),
+		ktep = (ktrace_entry_t*)kmem_zalloc((entries * sizeof(*ktep)),
 							    sleep | KM_LARGE);
 	}
 
@@ -91,8 +95,10 @@ ktrace_alloc(int nentries, unsigned int __nocast sleep)
 	}
 
 	ktp->kt_entries  = ktep;
-	ktp->kt_nentries = nentries;
-	ktp->kt_index    = 0;
+	ktp->kt_nentries = entries;
+	ASSERT(is_power_of_2(entries));
+	ktp->kt_index_mask = entries - 1;
+	atomic_set(&ktp->kt_index, 0);
 	ktp->kt_rollover = 0;
 	return ktp;
 }
@@ -151,8 +157,6 @@ ktrace_enter(
 	void            *val14,
 	void            *val15)
 {
-	static DEFINE_SPINLOCK(wrap_lock);
-	unsigned long	flags;
 	int             index;
 	ktrace_entry_t  *ktep;
 
@@ -161,12 +165,8 @@ ktrace_enter(
 	/*
 	 * Grab an entry by pushing the index up to the next one.
 	 */
-	spin_lock_irqsave(&wrap_lock, flags);
-	index = ktp->kt_index;
-	if (++ktp->kt_index == ktp->kt_nentries)
-		ktp->kt_index = 0;
-	spin_unlock_irqrestore(&wrap_lock, flags);
-
+	index = atomic_add_return(1, &ktp->kt_index);
+	index = (index - 1) & ktp->kt_index_mask;
 	if (!ktp->kt_rollover && index == ktp->kt_nentries - 1)
 		ktp->kt_rollover = 1;
 
@@ -199,11 +199,12 @@ int
 ktrace_nentries(
 	ktrace_t        *ktp)
 {
-	if (ktp == NULL) {
+	int	index;
+	if (ktp == NULL)
 		return 0;
-	}
 
-	return (ktp->kt_rollover ? ktp->kt_nentries : ktp->kt_index);
+	index = atomic_read(&ktp->kt_index) & ktp->kt_index_mask;
+	return (ktp->kt_rollover ? ktp->kt_nentries : index);
 }
 
 /*
@@ -228,7 +229,7 @@ ktrace_first(ktrace_t   *ktp, ktrace_snap_t     *ktsp)
 	int             nentries;
 
 	if (ktp->kt_rollover)
-		index = ktp->kt_index;
+		index = atomic_read(&ktp->kt_index) & ktp->kt_index_mask;
 	else
 		index = 0;
 
diff --git a/fs/xfs/support/ktrace.h b/fs/xfs/support/ktrace.h
index 56e72b40a859..741d6947ca60 100644
--- a/fs/xfs/support/ktrace.h
+++ b/fs/xfs/support/ktrace.h
@@ -30,7 +30,8 @@ typedef struct ktrace_entry {
  */
 typedef struct ktrace {
 	int		kt_nentries;	/* number of entries in trace buf */
-	int		kt_index;	/* current index in entries */
+	atomic_t	kt_index;	/* current index in entries */
+	unsigned int	kt_index_mask;
 	int		kt_rollover;
 	ktrace_entry_t	*kt_entries;	/* buffer of entries */
 } ktrace_t;
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index b08e2a2a8add..96ba6aa4ed8c 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -227,10 +227,10 @@ STATIC void
 xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp)
 {
 	if ((mp->m_flags & XFS_MOUNT_ATTR2) &&
-	    !(XFS_SB_VERSION_HASATTR2(&mp->m_sb))) {
+	    !(xfs_sb_version_hasattr2(&mp->m_sb))) {
 		spin_lock(&mp->m_sb_lock);
-		if (!XFS_SB_VERSION_HASATTR2(&mp->m_sb)) {
-			XFS_SB_VERSION_ADDATTR2(&mp->m_sb);
+		if (!xfs_sb_version_hasattr2(&mp->m_sb)) {
+			xfs_sb_version_addattr2(&mp->m_sb);
 			spin_unlock(&mp->m_sb_lock);
 			xfs_mod_sb(tp, XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
 		} else
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 1c0a5a585a82..bce8e3bd8ad1 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -4047,17 +4047,17 @@ xfs_bmap_add_attrfork(
 		xfs_trans_log_inode(tp, ip, logflags);
 	if (error)
 		goto error2;
-	if (!XFS_SB_VERSION_HASATTR(&mp->m_sb) ||
-	   (!XFS_SB_VERSION_HASATTR2(&mp->m_sb) && version == 2)) {
+	if (!xfs_sb_version_hasattr(&mp->m_sb) ||
+	   (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
 		__int64_t sbfields = 0;
 
 		spin_lock(&mp->m_sb_lock);
-		if (!XFS_SB_VERSION_HASATTR(&mp->m_sb)) {
-			XFS_SB_VERSION_ADDATTR(&mp->m_sb);
+		if (!xfs_sb_version_hasattr(&mp->m_sb)) {
+			xfs_sb_version_addattr(&mp->m_sb);
 			sbfields |= XFS_SB_VERSIONNUM;
 		}
-		if (!XFS_SB_VERSION_HASATTR2(&mp->m_sb) && version == 2) {
-			XFS_SB_VERSION_ADDATTR2(&mp->m_sb);
+		if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) {
+			xfs_sb_version_addattr2(&mp->m_sb);
 			sbfields |= (XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
 		}
 		if (sbfields) {
@@ -5043,7 +5043,7 @@ xfs_bmapi(
 			 * A wasdelay extent has been initialized, so
 			 * shouldn't be flagged as unwritten.
 			 */
-			if (wr && XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+			if (wr && xfs_sb_version_hasextflgbit(&mp->m_sb)) {
 				if (!wasdelay && (flags & XFS_BMAPI_PREALLOC))
 					got.br_state = XFS_EXT_UNWRITTEN;
 			}
@@ -5483,7 +5483,7 @@ xfs_bunmapi(
 			 * get rid of part of a realtime extent.
 			 */
 			if (del.br_state == XFS_EXT_UNWRITTEN ||
-			    !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+			    !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
 				/*
 				 * This piece is unwritten, or we're not
 				 * using unwritten extents.  Skip over it.
@@ -5535,7 +5535,7 @@ xfs_bunmapi(
 			} else if ((del.br_startoff == start &&
 				    (del.br_state == XFS_EXT_UNWRITTEN ||
 				     xfs_trans_get_block_res(tp) == 0)) ||
-				   !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+				   !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
 				/*
 				 * Can't make it unwritten.  There isn't
 				 * a full extent here so just skip it.
@@ -5772,7 +5772,6 @@ xfs_getbmap(
 	int			error;		/* return value */
 	__int64_t		fixlen;		/* length for -1 case */
 	int			i;		/* extent number */
-	bhv_vnode_t		*vp;		/* corresponding vnode */
 	int			lock;		/* lock state */
 	xfs_bmbt_irec_t		*map;		/* buffer for user's data */
 	xfs_mount_t		*mp;		/* file system mount point */
@@ -5789,7 +5788,6 @@ xfs_getbmap(
 	int			bmapi_flags;	/* flags for xfs_bmapi */
 	__int32_t		oflags;		/* getbmapx bmv_oflags field */
 
-	vp = XFS_ITOV(ip);
 	mp = ip->i_mount;
 
 	whichfork = interface & BMV_IF_ATTRFORK ? XFS_ATTR_FORK : XFS_DATA_FORK;
@@ -5811,7 +5809,7 @@ xfs_getbmap(
 	if ((interface & BMV_IF_NO_DMAPI_READ) == 0 &&
 	    DM_EVENT_ENABLED(ip, DM_EVENT_READ) &&
 	    whichfork == XFS_DATA_FORK) {
-		error = XFS_SEND_DATA(mp, DM_EVENT_READ, vp, 0, 0, 0, NULL);
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL);
 		if (error)
 			return XFS_ERROR(error);
 	}
@@ -5869,6 +5867,10 @@ xfs_getbmap(
 		/* xfs_fsize_t last_byte = xfs_file_last_byte(ip); */
 		error = xfs_flush_pages(ip, (xfs_off_t)0,
 					       -1, 0, FI_REMAPF);
+		if (error) {
+			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+		return error;
+		}
 	}
 
 	ASSERT(whichfork == XFS_ATTR_FORK || ip->i_delayed_blks == 0);
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
index 2d950e975918..cd0d4b4bb816 100644
--- a/fs/xfs/xfs_bmap_btree.h
+++ b/fs/xfs/xfs_bmap_btree.h
@@ -120,7 +120,7 @@ typedef enum {
  * Extent state and extent format macros.
  */
 #define XFS_EXTFMT_INODE(x)	\
-	(XFS_SB_VERSION_HASEXTFLGBIT(&((x)->i_mount->m_sb)) ? \
+	(xfs_sb_version_hasextflgbit(&((x)->i_mount->m_sb)) ? \
 		XFS_EXTFMT_HASSTATE : XFS_EXTFMT_NOSTATE)
 #define ISUNWRITTEN(x)	((x)->br_state == XFS_EXT_UNWRITTEN)
 
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index be7c4251fa61..e92e73f0e6af 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -49,7 +49,7 @@ void
 xfs_dir_mount(
 	xfs_mount_t	*mp)
 {
-	ASSERT(XFS_SB_VERSION_HASDIRV2(&mp->m_sb));
+	ASSERT(xfs_sb_version_hasdirv2(&mp->m_sb));
 	ASSERT((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) <=
 	       XFS_MAX_BLOCKSIZE);
 	mp->m_dirblksize = 1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog);
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index eadc1591c795..d3a0f538d6a6 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -77,36 +77,36 @@ xfs_fs_geometry(
 	if (new_version >= 3) {
 		geo->version = XFS_FSOP_GEOM_VERSION;
 		geo->flags =
-			(XFS_SB_VERSION_HASATTR(&mp->m_sb) ?
+			(xfs_sb_version_hasattr(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_ATTR : 0) |
-			(XFS_SB_VERSION_HASNLINK(&mp->m_sb) ?
+			(xfs_sb_version_hasnlink(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_NLINK : 0) |
-			(XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ?
+			(xfs_sb_version_hasquota(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_QUOTA : 0) |
-			(XFS_SB_VERSION_HASALIGN(&mp->m_sb) ?
+			(xfs_sb_version_hasalign(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_IALIGN : 0) |
-			(XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ?
+			(xfs_sb_version_hasdalign(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_DALIGN : 0) |
-			(XFS_SB_VERSION_HASSHARED(&mp->m_sb) ?
+			(xfs_sb_version_hasshared(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_SHARED : 0) |
-			(XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ?
+			(xfs_sb_version_hasextflgbit(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) |
-			(XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ?
+			(xfs_sb_version_hasdirv2(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) |
-			(XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ?
+			(xfs_sb_version_hassector(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_SECTOR : 0) |
 			(xfs_sb_version_haslazysbcount(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_LAZYSB : 0) |
-			(XFS_SB_VERSION_HASATTR2(&mp->m_sb) ?
+			(xfs_sb_version_hasattr2(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_ATTR2 : 0);
-		geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ?
+		geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
 				mp->m_sb.sb_logsectsize : BBSIZE;
 		geo->rtsectsize = mp->m_sb.sb_blocksize;
 		geo->dirblocksize = mp->m_dirblksize;
 	}
 	if (new_version >= 4) {
 		geo->flags |=
-			(XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ?
+			(xfs_sb_version_haslogv2(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_LOGV2 : 0);
 		geo->logsunit = mp->m_sb.sb_logsunit;
 	}
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index db9d5fa600af..5a146cb22980 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -191,7 +191,7 @@ xfs_ialloc_ag_alloc(
 			ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
 			args.alignment = args.mp->m_dalign;
 			isaligned = 1;
-		} else if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
+		} else if (xfs_sb_version_hasalign(&args.mp->m_sb) &&
 			   args.mp->m_sb.sb_inoalignmt >=
 			   XFS_B_TO_FSBT(args.mp,
 			  	XFS_INODE_CLUSTER_SIZE(args.mp)))
@@ -230,7 +230,7 @@ xfs_ialloc_ag_alloc(
 		args.agbno = be32_to_cpu(agi->agi_root);
 		args.fsbno = XFS_AGB_TO_FSB(args.mp,
 				be32_to_cpu(agi->agi_seqno), args.agbno);
-		if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
+		if (xfs_sb_version_hasalign(&args.mp->m_sb) &&
 			args.mp->m_sb.sb_inoalignmt >=
 			XFS_B_TO_FSBT(args.mp, XFS_INODE_CLUSTER_SIZE(args.mp)))
 				args.alignment = args.mp->m_sb.sb_inoalignmt;
@@ -271,7 +271,7 @@ xfs_ialloc_ag_alloc(
 	 * use the old version so that old kernels will continue to be
 	 * able to use the file system.
 	 */
-	if (XFS_SB_VERSION_HASNLINK(&args.mp->m_sb))
+	if (xfs_sb_version_hasnlink(&args.mp->m_sb))
 		version = XFS_DINODE_VERSION_2;
 	else
 		version = XFS_DINODE_VERSION_1;
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 8e09b71f4104..e657c5128460 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -78,7 +78,6 @@ xfs_iget_core(
 	xfs_inode_t	*ip;
 	xfs_inode_t	*iq;
 	int		error;
-	xfs_icluster_t	*icl, *new_icl = NULL;
 	unsigned long	first_index, mask;
 	xfs_perag_t	*pag;
 	xfs_agino_t	agino;
@@ -229,11 +228,9 @@ finish_inode:
 	}
 
 	/*
-	 * This is a bit messy - we preallocate everything we _might_
-	 * need before we pick up the ici lock. That way we don't have to
-	 * juggle locks and go all the way back to the start.
+	 * Preload the radix tree so we can insert safely under the
+	 * write spinlock.
 	 */
-	new_icl = kmem_zone_alloc(xfs_icluster_zone, KM_SLEEP);
 	if (radix_tree_preload(GFP_KERNEL)) {
 		xfs_idestroy(ip);
 		delay(1);
@@ -242,17 +239,6 @@ finish_inode:
 	mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
 	first_index = agino & mask;
 	write_lock(&pag->pag_ici_lock);
-
-	/*
-	 * Find the cluster if it exists
-	 */
-	icl = NULL;
-	if (radix_tree_gang_lookup(&pag->pag_ici_root, (void**)&iq,
-							first_index, 1)) {
-		if ((XFS_INO_TO_AGINO(mp, iq->i_ino) & mask) == first_index)
-			icl = iq->i_cluster;
-	}
-
 	/*
 	 * insert the new inode
 	 */
@@ -267,30 +253,13 @@ finish_inode:
 	}
 
 	/*
-	 * These values _must_ be set before releasing ihlock!
+	 * These values _must_ be set before releasing the radix tree lock!
 	 */
 	ip->i_udquot = ip->i_gdquot = NULL;
 	xfs_iflags_set(ip, XFS_INEW);
 
-	ASSERT(ip->i_cluster == NULL);
-
-	if (!icl) {
-		spin_lock_init(&new_icl->icl_lock);
-		INIT_HLIST_HEAD(&new_icl->icl_inodes);
-		icl = new_icl;
-		new_icl = NULL;
-	} else {
-		ASSERT(!hlist_empty(&icl->icl_inodes));
-	}
-	spin_lock(&icl->icl_lock);
-	hlist_add_head(&ip->i_cnode, &icl->icl_inodes);
-	ip->i_cluster = icl;
-	spin_unlock(&icl->icl_lock);
-
 	write_unlock(&pag->pag_ici_lock);
 	radix_tree_preload_end();
-	if (new_icl)
-		kmem_zone_free(xfs_icluster_zone, new_icl);
 
 	/*
 	 * Link ip to its mount and thread it on the mount's inode list.
@@ -529,18 +498,6 @@ xfs_iextract(
 	xfs_put_perag(mp, pag);
 
 	/*
-	 * Remove from cluster list
-	 */
-	mp = ip->i_mount;
-	spin_lock(&ip->i_cluster->icl_lock);
-	hlist_del(&ip->i_cnode);
-	spin_unlock(&ip->i_cluster->icl_lock);
-
-	/* was last inode in cluster? */
-	if (hlist_empty(&ip->i_cluster->icl_inodes))
-		kmem_zone_free(xfs_icluster_zone, ip->i_cluster);
-
-	/*
 	 * Remove from mount's inode list.
 	 */
 	XFS_MOUNT_ILOCK(mp);
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index a550546a7083..d7514f8317df 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -55,7 +55,6 @@
 
 kmem_zone_t *xfs_ifork_zone;
 kmem_zone_t *xfs_inode_zone;
-kmem_zone_t *xfs_icluster_zone;
 
 /*
  * Used in xfs_itruncate().  This is the maximum number of extents
@@ -126,6 +125,90 @@ xfs_inobp_check(
 #endif
 
 /*
+ * Find the buffer associated with the given inode map
+ * We do basic validation checks on the buffer once it has been
+ * retrieved from disk.
+ */
+STATIC int
+xfs_imap_to_bp(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_imap_t	*imap,
+	xfs_buf_t	**bpp,
+	uint		buf_flags,
+	uint		imap_flags)
+{
+	int		error;
+	int		i;
+	int		ni;
+	xfs_buf_t	*bp;
+
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap->im_blkno,
+				   (int)imap->im_len, buf_flags, &bp);
+	if (error) {
+		if (error != EAGAIN) {
+			cmn_err(CE_WARN,
+				"xfs_imap_to_bp: xfs_trans_read_buf()returned "
+				"an error %d on %s.  Returning error.",
+				error, mp->m_fsname);
+		} else {
+			ASSERT(buf_flags & XFS_BUF_TRYLOCK);
+		}
+		return error;
+	}
+
+	/*
+	 * Validate the magic number and version of every inode in the buffer
+	 * (if DEBUG kernel) or the first inode in the buffer, otherwise.
+	 */
+#ifdef DEBUG
+	ni = BBTOB(imap->im_len) >> mp->m_sb.sb_inodelog;
+#else	/* usual case */
+	ni = 1;
+#endif
+
+	for (i = 0; i < ni; i++) {
+		int		di_ok;
+		xfs_dinode_t	*dip;
+
+		dip = (xfs_dinode_t *)xfs_buf_offset(bp,
+					(i << mp->m_sb.sb_inodelog));
+		di_ok = be16_to_cpu(dip->di_core.di_magic) == XFS_DINODE_MAGIC &&
+			    XFS_DINODE_GOOD_VERSION(dip->di_core.di_version);
+		if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
+						XFS_ERRTAG_ITOBP_INOTOBP,
+						XFS_RANDOM_ITOBP_INOTOBP))) {
+			if (imap_flags & XFS_IMAP_BULKSTAT) {
+				xfs_trans_brelse(tp, bp);
+				return XFS_ERROR(EINVAL);
+			}
+			XFS_CORRUPTION_ERROR("xfs_imap_to_bp",
+						XFS_ERRLEVEL_HIGH, mp, dip);
+#ifdef DEBUG
+			cmn_err(CE_PANIC,
+					"Device %s - bad inode magic/vsn "
+					"daddr %lld #%d (magic=%x)",
+				XFS_BUFTARG_NAME(mp->m_ddev_targp),
+				(unsigned long long)imap->im_blkno, i,
+				be16_to_cpu(dip->di_core.di_magic));
+#endif
+			xfs_trans_brelse(tp, bp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+	}
+
+	xfs_inobp_check(mp, bp);
+
+	/*
+	 * Mark the buffer as an inode buffer now that it looks good
+	 */
+	XFS_BUF_SET_VTYPE(bp, B_FS_INO);
+
+	*bpp = bp;
+	return 0;
+}
+
+/*
  * This routine is called to map an inode number within a file
  * system to the buffer containing the on-disk version of the
  * inode.  It returns a pointer to the buffer containing the
@@ -147,72 +230,19 @@ xfs_inotobp(
 	xfs_buf_t	**bpp,
 	int		*offset)
 {
-	int		di_ok;
 	xfs_imap_t	imap;
 	xfs_buf_t	*bp;
 	int		error;
-	xfs_dinode_t	*dip;
 
-	/*
-	 * Call the space management code to find the location of the
-	 * inode on disk.
-	 */
 	imap.im_blkno = 0;
 	error = xfs_imap(mp, tp, ino, &imap, XFS_IMAP_LOOKUP);
-	if (error != 0) {
-		cmn_err(CE_WARN,
-	"xfs_inotobp: xfs_imap()  returned an "
-	"error %d on %s.  Returning error.", error, mp->m_fsname);
+	if (error)
 		return error;
-	}
-
-	/*
-	 * If the inode number maps to a block outside the bounds of the
-	 * file system then return NULL rather than calling read_buf
-	 * and panicing when we get an error from the driver.
-	 */
-	if ((imap.im_blkno + imap.im_len) >
-	    XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks)) {
-		cmn_err(CE_WARN,
-	"xfs_inotobp: inode number (%llu + %d) maps to a block outside the bounds "
-	"of the file system %s.  Returning EINVAL.",
-			(unsigned long long)imap.im_blkno,
-			imap.im_len, mp->m_fsname);
-		return XFS_ERROR(EINVAL);
-	}
 
-	/*
-	 * Read in the buffer.  If tp is NULL, xfs_trans_read_buf() will
-	 * default to just a read_buf() call.
-	 */
-	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap.im_blkno,
-				   (int)imap.im_len, XFS_BUF_LOCK, &bp);
-
-	if (error) {
-		cmn_err(CE_WARN,
-	"xfs_inotobp: xfs_trans_read_buf()  returned an "
-	"error %d on %s.  Returning error.", error, mp->m_fsname);
+	error = xfs_imap_to_bp(mp, tp, &imap, &bp, XFS_BUF_LOCK, 0);
+	if (error)
 		return error;
-	}
-	dip = (xfs_dinode_t *)xfs_buf_offset(bp, 0);
-	di_ok =
-		be16_to_cpu(dip->di_core.di_magic) == XFS_DINODE_MAGIC &&
-		XFS_DINODE_GOOD_VERSION(dip->di_core.di_version);
-	if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP,
-			XFS_RANDOM_ITOBP_INOTOBP))) {
-		XFS_CORRUPTION_ERROR("xfs_inotobp", XFS_ERRLEVEL_LOW, mp, dip);
-		xfs_trans_brelse(tp, bp);
-		cmn_err(CE_WARN,
-	"xfs_inotobp: XFS_TEST_ERROR()  returned an "
-	"error on %s.  Returning EFSCORRUPTED.",  mp->m_fsname);
-		return XFS_ERROR(EFSCORRUPTED);
-	}
-
-	xfs_inobp_check(mp, bp);
 
-	/*
-	 * Set *dipp to point to the on-disk inode in the buffer.
-	 */
 	*dipp = (xfs_dinode_t *)xfs_buf_offset(bp, imap.im_boffset);
 	*bpp = bp;
 	*offset = imap.im_boffset;
@@ -248,46 +278,21 @@ xfs_itobp(
 	xfs_dinode_t	**dipp,
 	xfs_buf_t	**bpp,
 	xfs_daddr_t	bno,
-	uint		imap_flags)
+	uint		imap_flags,
+	uint		buf_flags)
 {
 	xfs_imap_t	imap;
 	xfs_buf_t	*bp;
 	int		error;
-	int		i;
-	int		ni;
 
 	if (ip->i_blkno == (xfs_daddr_t)0) {
-		/*
-		 * Call the space management code to find the location of the
-		 * inode on disk.
-		 */
 		imap.im_blkno = bno;
-		if ((error = xfs_imap(mp, tp, ip->i_ino, &imap,
-					XFS_IMAP_LOOKUP | imap_flags)))
+		error = xfs_imap(mp, tp, ip->i_ino, &imap,
+					XFS_IMAP_LOOKUP | imap_flags);
+		if (error)
 			return error;
 
 		/*
-		 * If the inode number maps to a block outside the bounds
-		 * of the file system then return NULL rather than calling
-		 * read_buf and panicing when we get an error from the
-		 * driver.
-		 */
-		if ((imap.im_blkno + imap.im_len) >
-		    XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks)) {
-#ifdef DEBUG
-			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_itobp: "
-					"(imap.im_blkno (0x%llx) "
-					"+ imap.im_len (0x%llx)) > "
-					" XFS_FSB_TO_BB(mp, "
-					"mp->m_sb.sb_dblocks) (0x%llx)",
-					(unsigned long long) imap.im_blkno,
-					(unsigned long long) imap.im_len,
-					XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks));
-#endif /* DEBUG */
-			return XFS_ERROR(EINVAL);
-		}
-
-		/*
 		 * Fill in the fields in the inode that will be used to
 		 * map the inode to its buffer from now on.
 		 */
@@ -305,76 +310,17 @@ xfs_itobp(
 	}
 	ASSERT(bno == 0 || bno == imap.im_blkno);
 
-	/*
-	 * Read in the buffer.  If tp is NULL, xfs_trans_read_buf() will
-	 * default to just a read_buf() call.
-	 */
-	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap.im_blkno,
-				   (int)imap.im_len, XFS_BUF_LOCK, &bp);
-	if (error) {
-#ifdef DEBUG
-		xfs_fs_cmn_err(CE_ALERT, mp, "xfs_itobp: "
-				"xfs_trans_read_buf() returned error %d, "
-				"imap.im_blkno 0x%llx, imap.im_len 0x%llx",
-				error, (unsigned long long) imap.im_blkno,
-				(unsigned long long) imap.im_len);
-#endif /* DEBUG */
+	error = xfs_imap_to_bp(mp, tp, &imap, &bp, buf_flags, imap_flags);
+	if (error)
 		return error;
-	}
 
-	/*
-	 * Validate the magic number and version of every inode in the buffer
-	 * (if DEBUG kernel) or the first inode in the buffer, otherwise.
-	 * No validation is done here in userspace (xfs_repair).
-	 */
-#if !defined(__KERNEL__)
-	ni = 0;
-#elif defined(DEBUG)
-	ni = BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog;
-#else	/* usual case */
-	ni = 1;
-#endif
-
-	for (i = 0; i < ni; i++) {
-		int		di_ok;
-		xfs_dinode_t	*dip;
-
-		dip = (xfs_dinode_t *)xfs_buf_offset(bp,
-					(i << mp->m_sb.sb_inodelog));
-		di_ok = be16_to_cpu(dip->di_core.di_magic) == XFS_DINODE_MAGIC &&
-			    XFS_DINODE_GOOD_VERSION(dip->di_core.di_version);
-		if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
-						XFS_ERRTAG_ITOBP_INOTOBP,
-						XFS_RANDOM_ITOBP_INOTOBP))) {
-			if (imap_flags & XFS_IMAP_BULKSTAT) {
-				xfs_trans_brelse(tp, bp);
-				return XFS_ERROR(EINVAL);
-			}
-#ifdef DEBUG
-			cmn_err(CE_ALERT,
-					"Device %s - bad inode magic/vsn "
-					"daddr %lld #%d (magic=%x)",
-				XFS_BUFTARG_NAME(mp->m_ddev_targp),
-				(unsigned long long)imap.im_blkno, i,
-				be16_to_cpu(dip->di_core.di_magic));
-#endif
-			XFS_CORRUPTION_ERROR("xfs_itobp", XFS_ERRLEVEL_HIGH,
-					     mp, dip);
-			xfs_trans_brelse(tp, bp);
-			return XFS_ERROR(EFSCORRUPTED);
-		}
+	if (!bp) {
+		ASSERT(buf_flags & XFS_BUF_TRYLOCK);
+		ASSERT(tp == NULL);
+		*bpp = NULL;
+		return EAGAIN;
 	}
 
-	xfs_inobp_check(mp, bp);
-
-	/*
-	 * Mark the buffer as an inode buffer now that it looks good
-	 */
-	XFS_BUF_SET_VTYPE(bp, B_FS_INO);
-
-	/*
-	 * Set *dipp to point to the on-disk inode in the buffer.
-	 */
 	*dipp = (xfs_dinode_t *)xfs_buf_offset(bp, imap.im_boffset);
 	*bpp = bp;
 	return 0;
@@ -878,7 +824,7 @@ xfs_iread(
 	 * return NULL as well.  Set i_blkno to 0 so that xfs_itobp() will
 	 * know that this is a new incore inode.
 	 */
-	error = xfs_itobp(mp, tp, ip, &dip, &bp, bno, imap_flags);
+	error = xfs_itobp(mp, tp, ip, &dip, &bp, bno, imap_flags, XFS_BUF_LOCK);
 	if (error) {
 		kmem_zone_free(xfs_inode_zone, ip);
 		return error;
@@ -1147,7 +1093,7 @@ xfs_ialloc(
 	 * the inode version number now.  This way we only do the conversion
 	 * here rather than here and in the flush/logging code.
 	 */
-	if (XFS_SB_VERSION_HASNLINK(&tp->t_mountp->m_sb) &&
+	if (xfs_sb_version_hasnlink(&tp->t_mountp->m_sb) &&
 	    ip->i_d.di_version == XFS_DINODE_VERSION_1) {
 		ip->i_d.di_version = XFS_DINODE_VERSION_2;
 		/*
@@ -1967,7 +1913,7 @@ xfs_iunlink(
 		 * Here we put the head pointer into our next pointer,
 		 * and then we fall through to point the head at us.
 		 */
-		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0);
+		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0, XFS_BUF_LOCK);
 		if (error)
 			return error;
 
@@ -2075,7 +2021,7 @@ xfs_iunlink_remove(
 		 * of dealing with the buffer when there is no need to
 		 * change it.
 		 */
-		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0);
+		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0, XFS_BUF_LOCK);
 		if (error) {
 			cmn_err(CE_WARN,
 				"xfs_iunlink_remove: xfs_itobp()  returned an error %d on %s.  Returning error.",
@@ -2137,7 +2083,7 @@ xfs_iunlink_remove(
 		 * Now last_ibp points to the buffer previous to us on
 		 * the unlinked list.  Pull us from the list.
 		 */
-		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0);
+		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0, XFS_BUF_LOCK);
 		if (error) {
 			cmn_err(CE_WARN,
 				"xfs_iunlink_remove: xfs_itobp()  returned an error %d on %s.  Returning error.",
@@ -2172,13 +2118,6 @@ xfs_iunlink_remove(
 	return 0;
 }
 
-STATIC_INLINE int xfs_inode_clean(xfs_inode_t *ip)
-{
-	return (((ip->i_itemp == NULL) ||
-		!(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
-		(ip->i_update_core == 0));
-}
-
 STATIC void
 xfs_ifree_cluster(
 	xfs_inode_t	*free_ip,
@@ -2400,7 +2339,7 @@ xfs_ifree(
 
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
-	error = xfs_itobp(ip->i_mount, tp, ip, &dip, &ibp, 0, 0);
+	error = xfs_itobp(ip->i_mount, tp, ip, &dip, &ibp, 0, 0, XFS_BUF_LOCK);
 	if (error)
 		return error;
 
@@ -2678,14 +2617,31 @@ xfs_imap(
 	fsbno = imap->im_blkno ?
 		XFS_DADDR_TO_FSB(mp, imap->im_blkno) : NULLFSBLOCK;
 	error = xfs_dilocate(mp, tp, ino, &fsbno, &len, &off, flags);
-	if (error != 0) {
+	if (error)
 		return error;
-	}
+
 	imap->im_blkno = XFS_FSB_TO_DADDR(mp, fsbno);
 	imap->im_len = XFS_FSB_TO_BB(mp, len);
 	imap->im_agblkno = XFS_FSB_TO_AGBNO(mp, fsbno);
 	imap->im_ioffset = (ushort)off;
 	imap->im_boffset = (ushort)(off << mp->m_sb.sb_inodelog);
+
+	/*
+	 * If the inode number maps to a block outside the bounds
+	 * of the file system then return NULL rather than calling
+	 * read_buf and panicing when we get an error from the
+	 * driver.
+	 */
+	if ((imap->im_blkno + imap->im_len) >
+	    XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks)) {
+		xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: "
+			"(imap->im_blkno (0x%llx) + imap->im_len (0x%llx)) > "
+			" XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks) (0x%llx)",
+			(unsigned long long) imap->im_blkno,
+			(unsigned long long) imap->im_len,
+			XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks));
+		return EINVAL;
+	}
 	return 0;
 }
 
@@ -2826,38 +2782,41 @@ xfs_iunpin(
 }
 
 /*
- * This is called to wait for the given inode to be unpinned.
- * It will sleep until this happens.  The caller must have the
- * inode locked in at least shared mode so that the buffer cannot
- * be subsequently pinned once someone is waiting for it to be
- * unpinned.
+ * This is called to unpin an inode. It can be directed to wait or to return
+ * immediately without waiting for the inode to be unpinned.  The caller must
+ * have the inode locked in at least shared mode so that the buffer cannot be
+ * subsequently pinned once someone is waiting for it to be unpinned.
  */
 STATIC void
-xfs_iunpin_wait(
-	xfs_inode_t	*ip)
+__xfs_iunpin_wait(
+	xfs_inode_t	*ip,
+	int		wait)
 {
-	xfs_inode_log_item_t	*iip;
-	xfs_lsn_t	lsn;
+	xfs_inode_log_item_t	*iip = ip->i_itemp;
 
 	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE | MR_ACCESS));
-
-	if (atomic_read(&ip->i_pincount) == 0) {
+	if (atomic_read(&ip->i_pincount) == 0)
 		return;
-	}
 
-	iip = ip->i_itemp;
-	if (iip && iip->ili_last_lsn) {
-		lsn = iip->ili_last_lsn;
-	} else {
-		lsn = (xfs_lsn_t)0;
-	}
+	/* Give the log a push to start the unpinning I/O */
+	xfs_log_force(ip->i_mount, (iip && iip->ili_last_lsn) ?
+				iip->ili_last_lsn : 0, XFS_LOG_FORCE);
+	if (wait)
+		wait_event(ip->i_ipin_wait, (atomic_read(&ip->i_pincount) == 0));
+}
 
-	/*
-	 * Give the log a push so we don't wait here too long.
-	 */
-	xfs_log_force(ip->i_mount, lsn, XFS_LOG_FORCE);
+static inline void
+xfs_iunpin_wait(
+	xfs_inode_t	*ip)
+{
+	__xfs_iunpin_wait(ip, 1);
+}
 
-	wait_event(ip->i_ipin_wait, (atomic_read(&ip->i_pincount) == 0));
+static inline void
+xfs_iunpin_nowait(
+	xfs_inode_t	*ip)
+{
+	__xfs_iunpin_wait(ip, 0);
 }
 
 
@@ -3027,6 +2986,145 @@ xfs_iflush_fork(
 	return 0;
 }
 
+STATIC int
+xfs_iflush_cluster(
+	xfs_inode_t	*ip,
+	xfs_buf_t	*bp)
+{
+	xfs_mount_t		*mp = ip->i_mount;
+	xfs_perag_t		*pag = xfs_get_perag(mp, ip->i_ino);
+	unsigned long		first_index, mask;
+	int			ilist_size;
+	xfs_inode_t		**ilist;
+	xfs_inode_t		*iq;
+	int			nr_found;
+	int			clcount = 0;
+	int			bufwasdelwri;
+	int			i;
+
+	ASSERT(pag->pagi_inodeok);
+	ASSERT(pag->pag_ici_init);
+
+	ilist_size = XFS_INODE_CLUSTER_SIZE(mp) * sizeof(xfs_inode_t *);
+	ilist = kmem_alloc(ilist_size, KM_MAYFAIL);
+	if (!ilist)
+		return 0;
+
+	mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
+	first_index = XFS_INO_TO_AGINO(mp, ip->i_ino) & mask;
+	read_lock(&pag->pag_ici_lock);
+	/* really need a gang lookup range call here */
+	nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, (void**)ilist,
+					first_index,
+					XFS_INODE_CLUSTER_SIZE(mp));
+	if (nr_found == 0)
+		goto out_free;
+
+	for (i = 0; i < nr_found; i++) {
+		iq = ilist[i];
+		if (iq == ip)
+			continue;
+		/* if the inode lies outside this cluster, we're done. */
+		if ((XFS_INO_TO_AGINO(mp, iq->i_ino) & mask) != first_index)
+			break;
+		/*
+		 * Do an un-protected check to see if the inode is dirty and
+		 * is a candidate for flushing.  These checks will be repeated
+		 * later after the appropriate locks are acquired.
+		 */
+		if (xfs_inode_clean(iq) && xfs_ipincount(iq) == 0)
+			continue;
+
+		/*
+		 * Try to get locks.  If any are unavailable or it is pinned,
+		 * then this inode cannot be flushed and is skipped.
+		 */
+
+		if (!xfs_ilock_nowait(iq, XFS_ILOCK_SHARED))
+			continue;
+		if (!xfs_iflock_nowait(iq)) {
+			xfs_iunlock(iq, XFS_ILOCK_SHARED);
+			continue;
+		}
+		if (xfs_ipincount(iq)) {
+			xfs_ifunlock(iq);
+			xfs_iunlock(iq, XFS_ILOCK_SHARED);
+			continue;
+		}
+
+		/*
+		 * arriving here means that this inode can be flushed.  First
+		 * re-check that it's dirty before flushing.
+		 */
+		if (!xfs_inode_clean(iq)) {
+			int	error;
+			error = xfs_iflush_int(iq, bp);
+			if (error) {
+				xfs_iunlock(iq, XFS_ILOCK_SHARED);
+				goto cluster_corrupt_out;
+			}
+			clcount++;
+		} else {
+			xfs_ifunlock(iq);
+		}
+		xfs_iunlock(iq, XFS_ILOCK_SHARED);
+	}
+
+	if (clcount) {
+		XFS_STATS_INC(xs_icluster_flushcnt);
+		XFS_STATS_ADD(xs_icluster_flushinode, clcount);
+	}
+
+out_free:
+	read_unlock(&pag->pag_ici_lock);
+	kmem_free(ilist, ilist_size);
+	return 0;
+
+
+cluster_corrupt_out:
+	/*
+	 * Corruption detected in the clustering loop.  Invalidate the
+	 * inode buffer and shut down the filesystem.
+	 */
+	read_unlock(&pag->pag_ici_lock);
+	/*
+	 * Clean up the buffer.  If it was B_DELWRI, just release it --
+	 * brelse can handle it with no problems.  If not, shut down the
+	 * filesystem before releasing the buffer.
+	 */
+	bufwasdelwri = XFS_BUF_ISDELAYWRITE(bp);
+	if (bufwasdelwri)
+		xfs_buf_relse(bp);
+
+	xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
+
+	if (!bufwasdelwri) {
+		/*
+		 * Just like incore_relse: if we have b_iodone functions,
+		 * mark the buffer as an error and call them.  Otherwise
+		 * mark it as stale and brelse.
+		 */
+		if (XFS_BUF_IODONE_FUNC(bp)) {
+			XFS_BUF_CLR_BDSTRAT_FUNC(bp);
+			XFS_BUF_UNDONE(bp);
+			XFS_BUF_STALE(bp);
+			XFS_BUF_SHUT(bp);
+			XFS_BUF_ERROR(bp,EIO);
+			xfs_biodone(bp);
+		} else {
+			XFS_BUF_STALE(bp);
+			xfs_buf_relse(bp);
+		}
+	}
+
+	/*
+	 * Unlocks the flush lock
+	 */
+	xfs_iflush_abort(iq);
+	kmem_free(ilist, ilist_size);
+	return XFS_ERROR(EFSCORRUPTED);
+}
+
 /*
  * xfs_iflush() will write a modified inode's changes out to the
  * inode's on disk home.  The caller must have the inode lock held
@@ -3046,11 +3144,7 @@ xfs_iflush(
 	xfs_dinode_t		*dip;
 	xfs_mount_t		*mp;
 	int			error;
-	/* REFERENCED */
-	xfs_inode_t		*iq;
-	int			clcount;	/* count of inodes clustered */
-	int			bufwasdelwri;
-	struct hlist_node	*entry;
+	int			noblock = (flags == XFS_IFLUSH_ASYNC_NOBLOCK);
 	enum { INT_DELWRI = (1 << 0), INT_ASYNC = (1 << 1) };
 
 	XFS_STATS_INC(xs_iflush_count);
@@ -3067,8 +3161,7 @@ xfs_iflush(
 	 * If the inode isn't dirty, then just release the inode
 	 * flush lock and do nothing.
 	 */
-	if ((ip->i_update_core == 0) &&
-	    ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
+	if (xfs_inode_clean(ip)) {
 		ASSERT((iip != NULL) ?
 			 !(iip->ili_item.li_flags & XFS_LI_IN_AIL) : 1);
 		xfs_ifunlock(ip);
@@ -3076,11 +3169,21 @@ xfs_iflush(
 	}
 
 	/*
-	 * We can't flush the inode until it is unpinned, so
-	 * wait for it.  We know noone new can pin it, because
-	 * we are holding the inode lock shared and you need
-	 * to hold it exclusively to pin the inode.
+	 * We can't flush the inode until it is unpinned, so wait for it if we
+	 * are allowed to block.  We know noone new can pin it, because we are
+	 * holding the inode lock shared and you need to hold it exclusively to
+	 * pin the inode.
+	 *
+	 * If we are not allowed to block, force the log out asynchronously so
+	 * that when we come back the inode will be unpinned. If other inodes
+	 * in the same cluster are dirty, they will probably write the inode
+	 * out for us if they occur after the log force completes.
 	 */
+	if (noblock && xfs_ipincount(ip)) {
+		xfs_iunpin_nowait(ip);
+		xfs_ifunlock(ip);
+		return EAGAIN;
+	}
 	xfs_iunpin_wait(ip);
 
 	/*
@@ -3097,15 +3200,6 @@ xfs_iflush(
 	}
 
 	/*
-	 * Get the buffer containing the on-disk inode.
-	 */
-	error = xfs_itobp(mp, NULL, ip, &dip, &bp, 0, 0);
-	if (error) {
-		xfs_ifunlock(ip);
-		return error;
-	}
-
-	/*
 	 * Decide how buffer will be flushed out.  This is done before
 	 * the call to xfs_iflush_int because this field is zeroed by it.
 	 */
@@ -3121,6 +3215,7 @@ xfs_iflush(
 		case XFS_IFLUSH_DELWRI_ELSE_SYNC:
 			flags = 0;
 			break;
+		case XFS_IFLUSH_ASYNC_NOBLOCK:
 		case XFS_IFLUSH_ASYNC:
 		case XFS_IFLUSH_DELWRI_ELSE_ASYNC:
 			flags = INT_ASYNC;
@@ -3140,6 +3235,7 @@ xfs_iflush(
 		case XFS_IFLUSH_DELWRI:
 			flags = INT_DELWRI;
 			break;
+		case XFS_IFLUSH_ASYNC_NOBLOCK:
 		case XFS_IFLUSH_ASYNC:
 			flags = INT_ASYNC;
 			break;
@@ -3154,89 +3250,36 @@ xfs_iflush(
 	}
 
 	/*
-	 * First flush out the inode that xfs_iflush was called with.
+	 * Get the buffer containing the on-disk inode.
 	 */
-	error = xfs_iflush_int(ip, bp);
-	if (error) {
-		goto corrupt_out;
+	error = xfs_itobp(mp, NULL, ip, &dip, &bp, 0, 0,
+				noblock ? XFS_BUF_TRYLOCK : XFS_BUF_LOCK);
+	if (error || !bp) {
+		xfs_ifunlock(ip);
+		return error;
 	}
 
 	/*
-	 * inode clustering:
-	 * see if other inodes can be gathered into this write
+	 * First flush out the inode that xfs_iflush was called with.
 	 */
-	spin_lock(&ip->i_cluster->icl_lock);
-	ip->i_cluster->icl_buf = bp;
-
-	clcount = 0;
-	hlist_for_each_entry(iq, entry, &ip->i_cluster->icl_inodes, i_cnode) {
-		if (iq == ip)
-			continue;
-
-		/*
-		 * Do an un-protected check to see if the inode is dirty and
-		 * is a candidate for flushing.  These checks will be repeated
-		 * later after the appropriate locks are acquired.
-		 */
-		iip = iq->i_itemp;
-		if ((iq->i_update_core == 0) &&
-		    ((iip == NULL) ||
-		     !(iip->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
-		      xfs_ipincount(iq) == 0) {
-			continue;
-		}
-
-		/*
-		 * Try to get locks.  If any are unavailable,
-		 * then this inode cannot be flushed and is skipped.
-		 */
-
-		/* get inode locks (just i_lock) */
-		if (xfs_ilock_nowait(iq, XFS_ILOCK_SHARED)) {
-			/* get inode flush lock */
-			if (xfs_iflock_nowait(iq)) {
-				/* check if pinned */
-				if (xfs_ipincount(iq) == 0) {
-					/* arriving here means that
-					 * this inode can be flushed.
-					 * first re-check that it's
-					 * dirty
-					 */
-					iip = iq->i_itemp;
-					if ((iq->i_update_core != 0)||
-					    ((iip != NULL) &&
-					     (iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
-						clcount++;
-						error = xfs_iflush_int(iq, bp);
-						if (error) {
-							xfs_iunlock(iq,
-								    XFS_ILOCK_SHARED);
-							goto cluster_corrupt_out;
-						}
-					} else {
-						xfs_ifunlock(iq);
-					}
-				} else {
-					xfs_ifunlock(iq);
-				}
-			}
-			xfs_iunlock(iq, XFS_ILOCK_SHARED);
-		}
-	}
-	spin_unlock(&ip->i_cluster->icl_lock);
-
-	if (clcount) {
-		XFS_STATS_INC(xs_icluster_flushcnt);
-		XFS_STATS_ADD(xs_icluster_flushinode, clcount);
-	}
+	error = xfs_iflush_int(ip, bp);
+	if (error)
+		goto corrupt_out;
 
 	/*
-	 * If the buffer is pinned then push on the log so we won't
+	 * If the buffer is pinned then push on the log now so we won't
 	 * get stuck waiting in the write for too long.
 	 */
-	if (XFS_BUF_ISPINNED(bp)){
+	if (XFS_BUF_ISPINNED(bp))
 		xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE);
-	}
+
+	/*
+	 * inode clustering:
+	 * see if other inodes can be gathered into this write
+	 */
+	error = xfs_iflush_cluster(ip, bp);
+	if (error)
+		goto cluster_corrupt_out;
 
 	if (flags & INT_DELWRI) {
 		xfs_bdwrite(mp, bp);
@@ -3250,52 +3293,11 @@ xfs_iflush(
 corrupt_out:
 	xfs_buf_relse(bp);
 	xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
-	xfs_iflush_abort(ip);
-	/*
-	 * Unlocks the flush lock
-	 */
-	return XFS_ERROR(EFSCORRUPTED);
-
 cluster_corrupt_out:
-	/* Corruption detected in the clustering loop.  Invalidate the
-	 * inode buffer and shut down the filesystem.
-	 */
-	spin_unlock(&ip->i_cluster->icl_lock);
-
-	/*
-	 * Clean up the buffer.  If it was B_DELWRI, just release it --
-	 * brelse can handle it with no problems.  If not, shut down the
-	 * filesystem before releasing the buffer.
-	 */
-	if ((bufwasdelwri= XFS_BUF_ISDELAYWRITE(bp))) {
-		xfs_buf_relse(bp);
-	}
-
-	xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
-
-	if(!bufwasdelwri)  {
-		/*
-		 * Just like incore_relse: if we have b_iodone functions,
-		 * mark the buffer as an error and call them.  Otherwise
-		 * mark it as stale and brelse.
-		 */
-		if (XFS_BUF_IODONE_FUNC(bp)) {
-			XFS_BUF_CLR_BDSTRAT_FUNC(bp);
-			XFS_BUF_UNDONE(bp);
-			XFS_BUF_STALE(bp);
-			XFS_BUF_SHUT(bp);
-			XFS_BUF_ERROR(bp,EIO);
-			xfs_biodone(bp);
-		} else {
-			XFS_BUF_STALE(bp);
-			xfs_buf_relse(bp);
-		}
-	}
-
-	xfs_iflush_abort(iq);
 	/*
 	 * Unlocks the flush lock
 	 */
+	xfs_iflush_abort(ip);
 	return XFS_ERROR(EFSCORRUPTED);
 }
 
@@ -3325,8 +3327,7 @@ xfs_iflush_int(
 	 * If the inode isn't dirty, then just release the inode
 	 * flush lock and do nothing.
 	 */
-	if ((ip->i_update_core == 0) &&
-	    ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
+	if (xfs_inode_clean(ip)) {
 		xfs_ifunlock(ip);
 		return 0;
 	}
@@ -3434,9 +3435,9 @@ xfs_iflush_int(
 	 * has been updated, then make the conversion permanent.
 	 */
 	ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1 ||
-	       XFS_SB_VERSION_HASNLINK(&mp->m_sb));
+	       xfs_sb_version_hasnlink(&mp->m_sb));
 	if (ip->i_d.di_version == XFS_DINODE_VERSION_1) {
-		if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+		if (!xfs_sb_version_hasnlink(&mp->m_sb)) {
 			/*
 			 * Convert it back.
 			 */
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index bfcd72cbaeea..93c37697a72c 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -133,19 +133,6 @@ typedef struct dm_attrs_s {
 } dm_attrs_t;
 
 /*
- * This is the xfs inode cluster structure.  This structure is used by
- * xfs_iflush to find inodes that share a cluster and can be flushed to disk at
- * the same time.
- */
-typedef struct xfs_icluster {
-	struct hlist_head	icl_inodes;	/* list of inodes on cluster */
-	xfs_daddr_t		icl_blkno;	/* starting block number of
-						 * the cluster */
-	struct xfs_buf		*icl_buf;	/* the inode buffer */
-	spinlock_t		icl_lock;	/* inode list lock */
-} xfs_icluster_t;
-
-/*
  * This is the xfs in-core inode structure.
  * Most of the on-disk inode is embedded in the i_d field.
  *
@@ -240,10 +227,6 @@ typedef struct xfs_inode {
 	atomic_t		i_pincount;	/* inode pin count */
 	wait_queue_head_t	i_ipin_wait;	/* inode pinning wait queue */
 	spinlock_t		i_flags_lock;	/* inode i_flags lock */
-#ifdef HAVE_REFCACHE
-	struct xfs_inode	**i_refcache;	/* ptr to entry in ref cache */
-	struct xfs_inode	*i_release;	/* inode to unref */
-#endif
 	/* Miscellaneous state. */
 	unsigned short		i_flags;	/* see defined flags below */
 	unsigned char		i_update_core;	/* timestamps/size is dirty */
@@ -252,8 +235,6 @@ typedef struct xfs_inode {
 	unsigned int		i_delayed_blks;	/* count of delay alloc blks */
 
 	xfs_icdinode_t		i_d;		/* most of ondisk inode */
-	xfs_icluster_t		*i_cluster;	/* cluster list header */
-	struct hlist_node	i_cnode;	/* cluster link node */
 
 	xfs_fsize_t		i_size;		/* in-memory size */
 	xfs_fsize_t		i_new_size;	/* size when write completes */
@@ -461,6 +442,7 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
 #define	XFS_IFLUSH_SYNC			3
 #define	XFS_IFLUSH_ASYNC		4
 #define	XFS_IFLUSH_DELWRI		5
+#define	XFS_IFLUSH_ASYNC_NOBLOCK	6
 
 /*
  * Flags for xfs_itruncate_start().
@@ -515,7 +497,7 @@ int		xfs_finish_reclaim_all(struct xfs_mount *, int);
  */
 int		xfs_itobp(struct xfs_mount *, struct xfs_trans *,
 			  xfs_inode_t *, struct xfs_dinode **, struct xfs_buf **,
-			  xfs_daddr_t, uint);
+			  xfs_daddr_t, uint, uint);
 int		xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
 			  xfs_inode_t **, xfs_daddr_t, uint);
 int		xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
@@ -597,7 +579,6 @@ void		xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
 #define	xfs_inobp_check(mp, bp)
 #endif /* DEBUG */
 
-extern struct kmem_zone	*xfs_icluster_zone;
 extern struct kmem_zone	*xfs_ifork_zone;
 extern struct kmem_zone	*xfs_inode_zone;
 extern struct kmem_zone	*xfs_ili_zone;
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 034ca7202295..2c775b4ae9e6 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -296,9 +296,9 @@ xfs_inode_item_format(
 	 */
 	mp = ip->i_mount;
 	ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1 ||
-	       XFS_SB_VERSION_HASNLINK(&mp->m_sb));
+	       xfs_sb_version_hasnlink(&mp->m_sb));
 	if (ip->i_d.di_version == XFS_DINODE_VERSION_1) {
-		if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+		if (!xfs_sb_version_hasnlink(&mp->m_sb)) {
 			/*
 			 * Convert it back.
 			 */
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index bfe92ea17952..40513077ab36 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -168,6 +168,14 @@ static inline int xfs_ilog_fext(int w)
 	return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
 }
 
+static inline int xfs_inode_clean(xfs_inode_t *ip)
+{
+	return (!ip->i_itemp ||
+		!(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
+	       !ip->i_update_core;
+}
+
+
 #ifdef __KERNEL__
 
 extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 658aab6b1bbf..45d8776408ef 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -45,7 +45,7 @@ xfs_internal_inum(
 	xfs_ino_t	ino)
 {
 	return (ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
-		(XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+		(xfs_sb_version_hasquota(&mp->m_sb) &&
 		 (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino)));
 }
 
@@ -614,7 +614,8 @@ xfs_bulkstat(
 							xfs_buf_relse(bp);
 						error = xfs_itobp(mp, NULL, ip,
 								&dip, &bp, bno,
-								XFS_IMAP_BULKSTAT);
+								XFS_IMAP_BULKSTAT,
+								XFS_BUF_LOCK);
 						if (!error)
 							clustidx = ip->i_boffset / mp->m_sb.sb_inodesize;
 						kmem_zone_free(xfs_inode_zone, ip);
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index a75edca1860f..1fa980933895 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -675,7 +675,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 
 		spin_lock(&log->l_icloglock);
 		iclog = log->l_iclog;
-		iclog->ic_refcnt++;
+		atomic_inc(&iclog->ic_refcnt);
 		spin_unlock(&log->l_icloglock);
 		xlog_state_want_sync(log, iclog);
 		(void) xlog_state_release_iclog(log, iclog);
@@ -713,7 +713,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 		 */
 		spin_lock(&log->l_icloglock);
 		iclog = log->l_iclog;
-		iclog->ic_refcnt++;
+		atomic_inc(&iclog->ic_refcnt);
 		spin_unlock(&log->l_icloglock);
 
 		xlog_state_want_sync(log, iclog);
@@ -1090,7 +1090,7 @@ xlog_get_iclog_buffer_size(xfs_mount_t	*mp,
 			size >>= 1;
 		}
 
-		if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) {
+		if (xfs_sb_version_haslogv2(&mp->m_sb)) {
 			/* # headers = size / 32K
 			 * one header holds cycles from 32K of data
 			 */
@@ -1186,13 +1186,13 @@ xlog_alloc_log(xfs_mount_t	*mp,
 	log->l_grant_reserve_cycle = 1;
 	log->l_grant_write_cycle = 1;
 
-	if (XFS_SB_VERSION_HASSECTOR(&mp->m_sb)) {
+	if (xfs_sb_version_hassector(&mp->m_sb)) {
 		log->l_sectbb_log = mp->m_sb.sb_logsectlog - BBSHIFT;
 		ASSERT(log->l_sectbb_log <= mp->m_sectbb_log);
 		/* for larger sector sizes, must have v2 or external log */
 		ASSERT(log->l_sectbb_log == 0 ||
 			log->l_logBBstart == 0 ||
-			XFS_SB_VERSION_HASLOGV2(&mp->m_sb));
+			xfs_sb_version_haslogv2(&mp->m_sb));
 		ASSERT(mp->m_sb.sb_logsectlog >= BBSHIFT);
 	}
 	log->l_sectbb_mask = (1 << log->l_sectbb_log) - 1;
@@ -1247,7 +1247,7 @@ xlog_alloc_log(xfs_mount_t	*mp,
 		memset(head, 0, sizeof(xlog_rec_header_t));
 		head->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM);
 		head->h_version = cpu_to_be32(
-			XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? 2 : 1);
+			xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? 2 : 1);
 		head->h_size = cpu_to_be32(log->l_iclog_size);
 		/* new fields */
 		head->h_fmt = cpu_to_be32(XLOG_FMT);
@@ -1402,10 +1402,10 @@ xlog_sync(xlog_t		*log,
 	int		roundoff;       /* roundoff to BB or stripe */
 	int		split = 0;	/* split write into two regions */
 	int		error;
-	int		v2 = XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb);
+	int		v2 = xfs_sb_version_haslogv2(&log->l_mp->m_sb);
 
 	XFS_STATS_INC(xs_log_writes);
-	ASSERT(iclog->ic_refcnt == 0);
+	ASSERT(atomic_read(&iclog->ic_refcnt) == 0);
 
 	/* Add for LR header */
 	count_init = log->l_iclog_hsize + iclog->ic_offset;
@@ -2309,7 +2309,7 @@ xlog_state_done_syncing(
 
 	ASSERT(iclog->ic_state == XLOG_STATE_SYNCING ||
 	       iclog->ic_state == XLOG_STATE_IOERROR);
-	ASSERT(iclog->ic_refcnt == 0);
+	ASSERT(atomic_read(&iclog->ic_refcnt) == 0);
 	ASSERT(iclog->ic_bwritecnt == 1 || iclog->ic_bwritecnt == 2);
 
 
@@ -2391,7 +2391,7 @@ restart:
 	ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE);
 	head = &iclog->ic_header;
 
-	iclog->ic_refcnt++;			/* prevents sync */
+	atomic_inc(&iclog->ic_refcnt);	/* prevents sync */
 	log_offset = iclog->ic_offset;
 
 	/* On the 1st write to an iclog, figure out lsn.  This works
@@ -2423,12 +2423,12 @@ restart:
 		xlog_state_switch_iclogs(log, iclog, iclog->ic_size);
 
 		/* If I'm the only one writing to this iclog, sync it to disk */
-		if (iclog->ic_refcnt == 1) {
+		if (atomic_read(&iclog->ic_refcnt) == 1) {
 			spin_unlock(&log->l_icloglock);
 			if ((error = xlog_state_release_iclog(log, iclog)))
 				return error;
 		} else {
-			iclog->ic_refcnt--;
+			atomic_dec(&iclog->ic_refcnt);
 			spin_unlock(&log->l_icloglock);
 		}
 		goto restart;
@@ -2813,33 +2813,35 @@ xlog_state_put_ticket(xlog_t	    *log,
  *
  */
 STATIC int
-xlog_state_release_iclog(xlog_t		*log,
-			 xlog_in_core_t	*iclog)
+xlog_state_release_iclog(
+	xlog_t		*log,
+	xlog_in_core_t	*iclog)
 {
 	int		sync = 0;	/* do we sync? */
 
-	xlog_assign_tail_lsn(log->l_mp);
+	if (iclog->ic_state & XLOG_STATE_IOERROR)
+		return XFS_ERROR(EIO);
 
-	spin_lock(&log->l_icloglock);
+	ASSERT(atomic_read(&iclog->ic_refcnt) > 0);
+	if (!atomic_dec_and_lock(&iclog->ic_refcnt, &log->l_icloglock))
+		return 0;
 
 	if (iclog->ic_state & XLOG_STATE_IOERROR) {
 		spin_unlock(&log->l_icloglock);
 		return XFS_ERROR(EIO);
 	}
-
-	ASSERT(iclog->ic_refcnt > 0);
 	ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE ||
 	       iclog->ic_state == XLOG_STATE_WANT_SYNC);
 
-	if (--iclog->ic_refcnt == 0 &&
-	    iclog->ic_state == XLOG_STATE_WANT_SYNC) {
+	if (iclog->ic_state == XLOG_STATE_WANT_SYNC) {
+		/* update tail before writing to iclog */
+		xlog_assign_tail_lsn(log->l_mp);
 		sync++;
 		iclog->ic_state = XLOG_STATE_SYNCING;
 		iclog->ic_header.h_tail_lsn = cpu_to_be64(log->l_tail_lsn);
 		xlog_verify_tail_lsn(log, iclog, log->l_tail_lsn);
 		/* cycle incremented when incrementing curr_block */
 	}
-
 	spin_unlock(&log->l_icloglock);
 
 	/*
@@ -2849,11 +2851,9 @@ xlog_state_release_iclog(xlog_t		*log,
 	 * this iclog has consistent data, so we ignore IOERROR
 	 * flags after this point.
 	 */
-	if (sync) {
+	if (sync)
 		return xlog_sync(log, iclog);
-	}
 	return 0;
-
 }	/* xlog_state_release_iclog */
 
 
@@ -2881,7 +2881,7 @@ xlog_state_switch_iclogs(xlog_t		*log,
 	log->l_curr_block += BTOBB(eventual_size)+BTOBB(log->l_iclog_hsize);
 
 	/* Round up to next log-sunit */
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) &&
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb) &&
 	    log->l_mp->m_sb.sb_logsunit > 1) {
 		__uint32_t sunit_bb = BTOBB(log->l_mp->m_sb.sb_logsunit);
 		log->l_curr_block = roundup(log->l_curr_block, sunit_bb);
@@ -2953,7 +2953,8 @@ xlog_state_sync_all(xlog_t *log, uint flags, int *log_flushed)
 		 * previous iclog and go to sleep.
 		 */
 		if (iclog->ic_state == XLOG_STATE_DIRTY ||
-		    (iclog->ic_refcnt == 0 && iclog->ic_offset == 0)) {
+		    (atomic_read(&iclog->ic_refcnt) == 0
+		     && iclog->ic_offset == 0)) {
 			iclog = iclog->ic_prev;
 			if (iclog->ic_state == XLOG_STATE_ACTIVE ||
 			    iclog->ic_state == XLOG_STATE_DIRTY)
@@ -2961,14 +2962,14 @@ xlog_state_sync_all(xlog_t *log, uint flags, int *log_flushed)
 			else
 				goto maybe_sleep;
 		} else {
-			if (iclog->ic_refcnt == 0) {
+			if (atomic_read(&iclog->ic_refcnt) == 0) {
 				/* We are the only one with access to this
 				 * iclog.  Flush it out now.  There should
 				 * be a roundoff of zero to show that someone
 				 * has already taken care of the roundoff from
 				 * the previous sync.
 				 */
-				iclog->ic_refcnt++;
+				atomic_inc(&iclog->ic_refcnt);
 				lsn = be64_to_cpu(iclog->ic_header.h_lsn);
 				xlog_state_switch_iclogs(log, iclog, 0);
 				spin_unlock(&log->l_icloglock);
@@ -3100,7 +3101,7 @@ try_again:
 			already_slept = 1;
 			goto try_again;
 		} else {
-			iclog->ic_refcnt++;
+			atomic_inc(&iclog->ic_refcnt);
 			xlog_state_switch_iclogs(log, iclog, 0);
 			spin_unlock(&log->l_icloglock);
 			if (xlog_state_release_iclog(log, iclog))
@@ -3334,7 +3335,7 @@ xlog_ticket_get(xlog_t		*log,
 	unit_bytes += sizeof(xlog_op_header_t) * num_headers;
 
 	/* for roundoff padding for transaction data and one for commit record */
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) &&
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb) &&
 	    log->l_mp->m_sb.sb_logsunit > 1) {
 		/* log su roundoff */
 		unit_bytes += 2*log->l_mp->m_sb.sb_logsunit;
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index e008233ee249..01c63db25a1d 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -49,10 +49,10 @@ struct xfs_mount;
 #define XLOG_HEADER_SIZE	512
 
 #define XLOG_REC_SHIFT(log) \
-	BTOBB(1 << (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? \
+	BTOBB(1 << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \
 	 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
 #define XLOG_TOTAL_REC_SHIFT(log) \
-	BTOBB(XLOG_MAX_ICLOGS << (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? \
+	BTOBB(XLOG_MAX_ICLOGS << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \
 	 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
 
 
@@ -339,7 +339,7 @@ typedef struct xlog_iclog_fields {
 #endif
 	int			ic_size;
 	int			ic_offset;
-	int			ic_refcnt;
+	atomic_t		ic_refcnt;
 	int			ic_bwritecnt;
 	ushort_t		ic_state;
 	char			*ic_datap;	/* pointer to iclog data */
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index b82d5d4d2462..cd24711ae276 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -478,7 +478,7 @@ xlog_find_verify_log_record(
 	 * reset last_blk.  Only when last_blk points in the middle of a log
 	 * record do we update last_blk.
 	 */
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
 		uint	h_size = be32_to_cpu(head->h_size);
 
 		xhdrs = h_size / XLOG_HEADER_CYCLE_SIZE;
@@ -888,7 +888,7 @@ xlog_find_tail(
 	 * unmount record if there is one, so we pass the lsn of the
 	 * unmount record rather than the block after it.
 	 */
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
 		int	h_size = be32_to_cpu(rhead->h_size);
 		int	h_version = be32_to_cpu(rhead->h_version);
 
@@ -1101,7 +1101,7 @@ xlog_add_record(
 	recp->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM);
 	recp->h_cycle = cpu_to_be32(cycle);
 	recp->h_version = cpu_to_be32(
-			XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? 2 : 1);
+			xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? 2 : 1);
 	recp->h_lsn = cpu_to_be64(xlog_assign_lsn(cycle, block));
 	recp->h_tail_lsn = cpu_to_be64(xlog_assign_lsn(tail_cycle, tail_block));
 	recp->h_fmt = cpu_to_be32(XLOG_FMT);
@@ -3214,7 +3214,8 @@ xlog_recover_process_iunlinks(
 					 * next inode in the bucket.
 					 */
 					error = xfs_itobp(mp, NULL, ip, &dip,
-							&ibp, 0, 0);
+							&ibp, 0, 0,
+							XFS_BUF_LOCK);
 					ASSERT(error || (dip != NULL));
 				}
 
@@ -3348,7 +3349,7 @@ xlog_pack_data(
 		dp += BBSIZE;
 	}
 
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
 		xhdr = (xlog_in_core_2_t *)&iclog->ic_header;
 		for ( ; i < BTOBB(size); i++) {
 			j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
@@ -3388,7 +3389,7 @@ xlog_unpack_data_checksum(
 			    be32_to_cpu(rhead->h_chksum), chksum);
 		    cmn_err(CE_DEBUG,
 "XFS: Disregard message if filesystem was created with non-DEBUG kernel");
-		    if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+		    if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
 			    cmn_err(CE_DEBUG,
 				"XFS: LogR this is a LogV2 filesystem\n");
 		    }
@@ -3415,7 +3416,7 @@ xlog_unpack_data(
 		dp += BBSIZE;
 	}
 
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
 		xhdr = (xlog_in_core_2_t *)rhead;
 		for ( ; i < BTOBB(be32_to_cpu(rhead->h_len)); i++) {
 			j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
@@ -3494,7 +3495,7 @@ xlog_do_recovery_pass(
 	 * Read the header of the tail block and get the iclog buffer size from
 	 * h_size.  Use this to tell how many sectors make up the log header.
 	 */
-	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+	if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
 		/*
 		 * When using variable length iclogs, read first sector of
 		 * iclog header and extract the header size from it.  Get a
@@ -3838,7 +3839,7 @@ xlog_do_recover(
 	sbp = &log->l_mp->m_sb;
 	xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(bp));
 	ASSERT(sbp->sb_magicnum == XFS_SB_MAGIC);
-	ASSERT(XFS_SB_GOOD_VERSION(sbp));
+	ASSERT(xfs_sb_good_version(sbp));
 	xfs_buf_relse(bp);
 
 	/* We've re-read the superblock so re-initialize per-cpu counters */
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 6409b3762995..5be0328bbfbb 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -44,7 +44,7 @@
 #include "xfs_quota.h"
 #include "xfs_fsops.h"
 
-STATIC void	xfs_mount_log_sbunit(xfs_mount_t *, __int64_t);
+STATIC void	xfs_mount_log_sb(xfs_mount_t *, __int64_t);
 STATIC int	xfs_uuid_mount(xfs_mount_t *);
 STATIC void	xfs_uuid_unmount(xfs_mount_t *mp);
 STATIC void	xfs_unmountfs_wait(xfs_mount_t *);
@@ -119,6 +119,7 @@ static const struct {
     { offsetof(xfs_sb_t, sb_logsectsize),0 },
     { offsetof(xfs_sb_t, sb_logsunit),	 0 },
     { offsetof(xfs_sb_t, sb_features2),	 0 },
+    { offsetof(xfs_sb_t, sb_bad_features2), 0 },
     { sizeof(xfs_sb_t),			 0 }
 };
 
@@ -225,7 +226,7 @@ xfs_mount_validate_sb(
 		return XFS_ERROR(EWRONGFS);
 	}
 
-	if (!XFS_SB_GOOD_VERSION(sbp)) {
+	if (!xfs_sb_good_version(sbp)) {
 		xfs_fs_mount_cmn_err(flags, "bad version");
 		return XFS_ERROR(EWRONGFS);
 	}
@@ -300,7 +301,7 @@ xfs_mount_validate_sb(
 	/*
 	 * Version 1 directory format has never worked on Linux.
 	 */
-	if (unlikely(!XFS_SB_VERSION_HASDIRV2(sbp))) {
+	if (unlikely(!xfs_sb_version_hasdirv2(sbp))) {
 		xfs_fs_mount_cmn_err(flags,
 			"file system using version 1 directory format");
 		return XFS_ERROR(ENOSYS);
@@ -449,6 +450,7 @@ xfs_sb_from_disk(
 	to->sb_logsectsize = be16_to_cpu(from->sb_logsectsize);
 	to->sb_logsunit = be32_to_cpu(from->sb_logsunit);
 	to->sb_features2 = be32_to_cpu(from->sb_features2);
+	to->sb_bad_features2 = be32_to_cpu(from->sb_bad_features2);
 }
 
 /*
@@ -781,7 +783,7 @@ xfs_update_alignment(xfs_mount_t *mp, int mfsi_flags, __uint64_t *update_flags)
 		 * Update superblock with new values
 		 * and log changes
 		 */
-		if (XFS_SB_VERSION_HASDALIGN(sbp)) {
+		if (xfs_sb_version_hasdalign(sbp)) {
 			if (sbp->sb_unit != mp->m_dalign) {
 				sbp->sb_unit = mp->m_dalign;
 				*update_flags |= XFS_SB_UNIT;
@@ -792,7 +794,7 @@ xfs_update_alignment(xfs_mount_t *mp, int mfsi_flags, __uint64_t *update_flags)
 			}
 		}
 	} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
-		    XFS_SB_VERSION_HASDALIGN(&mp->m_sb)) {
+		    xfs_sb_version_hasdalign(&mp->m_sb)) {
 			mp->m_dalign = sbp->sb_unit;
 			mp->m_swidth = sbp->sb_width;
 	}
@@ -869,7 +871,7 @@ xfs_set_rw_sizes(xfs_mount_t *mp)
 STATIC void
 xfs_set_inoalignment(xfs_mount_t *mp)
 {
-	if (XFS_SB_VERSION_HASALIGN(&mp->m_sb) &&
+	if (xfs_sb_version_hasalign(&mp->m_sb) &&
 	    mp->m_sb.sb_inoalignmt >=
 	    XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
 		mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1;
@@ -962,14 +964,29 @@ xfs_mountfs(
 	int		uuid_mounted = 0;
 	int		error = 0;
 
-	if (mp->m_sb_bp == NULL) {
-		error = xfs_readsb(mp, mfsi_flags);
-		if (error)
-			return error;
-	}
 	xfs_mount_common(mp, sbp);
 
 	/*
+	 * Check for a bad features2 field alignment. This happened on
+	 * some platforms due to xfs_sb_t not being 64bit size aligned
+	 * when sb_features was added and hence the compiler put it in
+	 * the wrong place.
+	 *
+	 * If we detect a bad field, we or the set bits into the existing
+	 * features2 field in case it has already been modified and we
+	 * don't want to lose any features. Zero the bad one and mark
+	 * the two fields as needing updates once the transaction subsystem
+	 * is online.
+	 */
+	if (xfs_sb_has_bad_features2(sbp)) {
+		cmn_err(CE_WARN,
+			"XFS: correcting sb_features alignment problem");
+		sbp->sb_features2 |= sbp->sb_bad_features2;
+		sbp->sb_bad_features2 = 0;
+		update_flags |= XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2;
+	}
+
+	/*
 	 * Check if sb_agblocks is aligned at stripe boundary
 	 * If sb_agblocks is NOT aligned turn off m_dalign since
 	 * allocator alignment is within an ag, therefore ag has
@@ -1159,11 +1176,10 @@ xfs_mountfs(
 	}
 
 	/*
-	 * If fs is not mounted readonly, then update the superblock
-	 * unit and width changes.
+	 * If fs is not mounted readonly, then update the superblock changes.
 	 */
 	if (update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY))
-		xfs_mount_log_sbunit(mp, update_flags);
+		xfs_mount_log_sb(mp, update_flags);
 
 	/*
 	 * Initialise the XFS quota management subsystem for this mount
@@ -1878,13 +1894,14 @@ xfs_uuid_unmount(
  * be altered by the mount options. Only the first superblock is updated.
  */
 STATIC void
-xfs_mount_log_sbunit(
+xfs_mount_log_sb(
 	xfs_mount_t	*mp,
 	__int64_t	fields)
 {
 	xfs_trans_t	*tp;
 
-	ASSERT(fields & (XFS_SB_UNIT|XFS_SB_WIDTH|XFS_SB_UUID));
+	ASSERT(fields & (XFS_SB_UNIT | XFS_SB_WIDTH | XFS_SB_UUID |
+			 XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2));
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT);
 	if (xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 1d8a4728d847..7b37fa009297 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -66,17 +66,17 @@ struct xfs_mru_cache;
  * Prototypes and functions for the Data Migration subsystem.
  */
 
-typedef int	(*xfs_send_data_t)(int, bhv_vnode_t *,
-			xfs_off_t, size_t, int, bhv_vrwlock_t *);
+typedef int	(*xfs_send_data_t)(int, struct xfs_inode *,
+			xfs_off_t, size_t, int, int *);
 typedef int	(*xfs_send_mmap_t)(struct vm_area_struct *, uint);
-typedef int	(*xfs_send_destroy_t)(bhv_vnode_t *, dm_right_t);
+typedef int	(*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t);
 typedef int	(*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *,
-			bhv_vnode_t *,
-			dm_right_t, bhv_vnode_t *, dm_right_t,
+			struct xfs_inode *, dm_right_t,
+			struct xfs_inode *, dm_right_t,
 			char *, char *, mode_t, int, int);
 typedef int	(*xfs_send_mount_t)(struct xfs_mount *, dm_right_t,
 			char *, char *);
-typedef void	(*xfs_send_unmount_t)(struct xfs_mount *, bhv_vnode_t *,
+typedef void	(*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *,
 			dm_right_t, mode_t, int, int);
 
 typedef struct xfs_dmops {
@@ -88,20 +88,20 @@ typedef struct xfs_dmops {
 	xfs_send_unmount_t	xfs_send_unmount;
 } xfs_dmops_t;
 
-#define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \
-	(*(mp)->m_dm_ops->xfs_send_data)(ev,vp,off,len,fl,lock)
+#define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \
+	(*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock)
 #define XFS_SEND_MMAP(mp, vma,fl) \
 	(*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl)
-#define XFS_SEND_DESTROY(mp, vp,right) \
-	(*(mp)->m_dm_ops->xfs_send_destroy)(vp,right)
+#define XFS_SEND_DESTROY(mp, ip,right) \
+	(*(mp)->m_dm_ops->xfs_send_destroy)(ip,right)
 #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
 	(*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl)
 #define XFS_SEND_PREUNMOUNT(mp,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
 	(*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT,mp,b1,r1,b2,r2,n1,n2,mode,rval,fl)
 #define XFS_SEND_MOUNT(mp,right,path,name) \
 	(*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name)
-#define XFS_SEND_UNMOUNT(mp, vp,right,mode,rval,fl) \
-	(*(mp)->m_dm_ops->xfs_send_unmount)(mp,vp,right,mode,rval,fl)
+#define XFS_SEND_UNMOUNT(mp, ip,right,mode,rval,fl) \
+	(*(mp)->m_dm_ops->xfs_send_unmount)(mp,ip,right,mode,rval,fl)
 
 
 /*
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index 7eb157a59f9e..c4d0bac56a5a 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -36,7 +36,6 @@
 #include "xfs_bmap.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
-#include "xfs_refcache.h"
 #include "xfs_utils.h"
 #include "xfs_trans_space.h"
 #include "xfs_vnodeops.h"
@@ -94,7 +93,8 @@ xfs_lock_for_rename(
 	xfs_inode_t	**i_tab,/* array of inode returned, sorted */
 	int		*num_inodes)  /* number of inodes in array */
 {
-	xfs_inode_t		*ip1, *ip2, *temp;
+	xfs_inode_t		*ip1 = VNAME_TO_INODE(vname1);
+	xfs_inode_t		*ip2, *temp;
 	xfs_ino_t		inum1, inum2;
 	int			error;
 	int			i, j;
@@ -110,16 +110,11 @@ xfs_lock_for_rename(
 	 * to see if we still have the right inodes, directories, etc.
 	 */
 	lock_mode = xfs_ilock_map_shared(dp1);
-	error = xfs_get_dir_entry(vname1, &ip1);
-	if (error) {
-		xfs_iunlock_map_shared(dp1, lock_mode);
-		return error;
-	}
+	IHOLD(ip1);
+	xfs_itrace_ref(ip1);
 
 	inum1 = ip1->i_ino;
 
-	ASSERT(ip1);
-	xfs_itrace_ref(ip1);
 
 	/*
 	 * Unlock dp1 and lock dp2 if they are different.
@@ -224,12 +219,11 @@ int
 xfs_rename(
 	xfs_inode_t	*src_dp,
 	bhv_vname_t	*src_vname,
-	bhv_vnode_t	*target_dir_vp,
+	xfs_inode_t	*target_dp,
 	bhv_vname_t	*target_vname)
 {
-	bhv_vnode_t	*src_dir_vp = XFS_ITOV(src_dp);
 	xfs_trans_t	*tp;
-	xfs_inode_t	*target_dp, *src_ip, *target_ip;
+	xfs_inode_t	*src_ip, *target_ip;
 	xfs_mount_t	*mp = src_dp->i_mount;
 	int		new_parent;		/* moving to a new dir */
 	int		src_is_directory;	/* src_name is a directory */
@@ -249,22 +243,13 @@ xfs_rename(
 	int		target_namelen = VNAMELEN(target_vname);
 
 	xfs_itrace_entry(src_dp);
-	xfs_itrace_entry(xfs_vtoi(target_dir_vp));
-
-	/*
-	 * Find the XFS behavior descriptor for the target directory
-	 * vnode since it was not handed to us.
-	 */
-	target_dp = xfs_vtoi(target_dir_vp);
-	if (target_dp == NULL) {
-		return XFS_ERROR(EXDEV);
-	}
+	xfs_itrace_entry(target_dp);
 
 	if (DM_EVENT_ENABLED(src_dp, DM_EVENT_RENAME) ||
 	    DM_EVENT_ENABLED(target_dp, DM_EVENT_RENAME)) {
 		error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME,
-					src_dir_vp, DM_RIGHT_NULL,
-					target_dir_vp, DM_RIGHT_NULL,
+					src_dp, DM_RIGHT_NULL,
+					target_dp, DM_RIGHT_NULL,
 					src_name, target_name,
 					0, 0, 0);
 		if (error) {
@@ -365,10 +350,10 @@ xfs_rename(
 	 * them when they unlock the inodes.  Also, we need to be careful
 	 * not to add an inode to the transaction more than once.
 	 */
-	VN_HOLD(src_dir_vp);
+	IHOLD(src_dp);
 	xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
 	if (new_parent) {
-		VN_HOLD(target_dir_vp);
+		IHOLD(target_dp);
 		xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
 	}
 	if ((src_ip != src_dp) && (src_ip != target_dp)) {
@@ -580,10 +565,8 @@ xfs_rename(
 	 * the vnode references.
 	 */
 	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-	if (target_ip != NULL) {
-		xfs_refcache_purge_ip(target_ip);
+	if (target_ip != NULL)
 		IRELE(target_ip);
-	}
 	/*
 	 * Let interposed file systems know about removed links.
 	 */
@@ -598,8 +581,8 @@ std_return:
 	if (DM_EVENT_ENABLED(src_dp, DM_EVENT_POSTRENAME) ||
 	    DM_EVENT_ENABLED(target_dp, DM_EVENT_POSTRENAME)) {
 		(void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME,
-					src_dir_vp, DM_RIGHT_NULL,
-					target_dir_vp, DM_RIGHT_NULL,
+					src_dp, DM_RIGHT_NULL,
+					target_dp, DM_RIGHT_NULL,
 					src_name, target_name,
 					0, error, 0);
 	}
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
index 94660b1a6ccc..b1a83f8ec044 100644
--- a/fs/xfs/xfs_sb.h
+++ b/fs/xfs/xfs_sb.h
@@ -89,6 +89,7 @@ struct xfs_mount;
 
 /*
  * Superblock - in core version.  Must match the ondisk version below.
+ * Must be padded to 64 bit alignment.
  */
 typedef struct xfs_sb {
 	__uint32_t	sb_magicnum;	/* magic number == XFS_SB_MAGIC */
@@ -145,10 +146,21 @@ typedef struct xfs_sb {
 	__uint16_t	sb_logsectsize;	/* sector size for the log, bytes */
 	__uint32_t	sb_logsunit;	/* stripe unit size for the log */
 	__uint32_t	sb_features2;	/* additional feature bits */
+
+	/*
+	 * bad features2 field as a result of failing to pad the sb
+	 * structure to 64 bits. Some machines will be using this field
+	 * for features2 bits. Easiest just to mark it bad and not use
+	 * it for anything else.
+	 */
+	__uint32_t	sb_bad_features2;
+
+	/* must be padded to 64 bit alignment */
 } xfs_sb_t;
 
 /*
- * Superblock - on disk version.  Must match the in core version below.
+ * Superblock - on disk version.  Must match the in core version above.
+ * Must be padded to 64 bit alignment.
  */
 typedef struct xfs_dsb {
 	__be32		sb_magicnum;	/* magic number == XFS_SB_MAGIC */
@@ -205,6 +217,15 @@ typedef struct xfs_dsb {
 	__be16		sb_logsectsize;	/* sector size for the log, bytes */
 	__be32		sb_logsunit;	/* stripe unit size for the log */
 	__be32		sb_features2;	/* additional feature bits */
+	/*
+	 * bad features2 field as a result of failing to pad the sb
+	 * structure to 64 bits. Some machines will be using this field
+	 * for features2 bits. Easiest just to mark it bad and not use
+	 * it for anything else.
+	 */
+	__be32	sb_bad_features2;
+
+	/* must be padded to 64 bit alignment */
 } xfs_dsb_t;
 
 /*
@@ -223,7 +244,7 @@ typedef enum {
 	XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
 	XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
 	XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
-	XFS_SBS_FEATURES2,
+	XFS_SBS_FEATURES2, XFS_SBS_BAD_FEATURES2,
 	XFS_SBS_FIELDCOUNT
 } xfs_sb_field_t;
 
@@ -248,13 +269,15 @@ typedef enum {
 #define XFS_SB_IFREE		XFS_SB_MVAL(IFREE)
 #define XFS_SB_FDBLOCKS		XFS_SB_MVAL(FDBLOCKS)
 #define XFS_SB_FEATURES2	XFS_SB_MVAL(FEATURES2)
+#define XFS_SB_BAD_FEATURES2	XFS_SB_MVAL(BAD_FEATURES2)
 #define	XFS_SB_NUM_BITS		((int)XFS_SBS_FIELDCOUNT)
 #define	XFS_SB_ALL_BITS		((1LL << XFS_SB_NUM_BITS) - 1)
 #define	XFS_SB_MOD_BITS		\
 	(XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
 	 XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
 	 XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \
-	 XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2)
+	 XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \
+	 XFS_SB_BAD_FEATURES2)
 
 
 /*
@@ -271,7 +294,6 @@ typedef enum {
 
 #define	XFS_SB_VERSION_NUM(sbp)	((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
 
-#define	XFS_SB_GOOD_VERSION(sbp)	xfs_sb_good_version(sbp)
 #ifdef __KERNEL__
 static inline int xfs_sb_good_version(xfs_sb_t *sbp)
 {
@@ -297,7 +319,14 @@ static inline int xfs_sb_good_version(xfs_sb_t *sbp)
 }
 #endif /* __KERNEL__ */
 
-#define	XFS_SB_VERSION_TONEW(v)	xfs_sb_version_tonew(v)
+/*
+ * Detect a bad features2 field
+ */
+static inline int xfs_sb_has_bad_features2(xfs_sb_t *sbp)
+{
+	return (sbp->sb_bad_features2 != 0);
+}
+
 static inline unsigned xfs_sb_version_tonew(unsigned v)
 {
 	return ((((v) == XFS_SB_VERSION_1) ? \
@@ -308,7 +337,6 @@ static inline unsigned xfs_sb_version_tonew(unsigned v)
 		XFS_SB_VERSION_4);
 }
 
-#define	XFS_SB_VERSION_TOOLD(v)	xfs_sb_version_toold(v)
 static inline unsigned xfs_sb_version_toold(unsigned v)
 {
 	return (((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \
@@ -320,7 +348,6 @@ static inline unsigned xfs_sb_version_toold(unsigned v)
 				XFS_SB_VERSION_1)));
 }
 
-#define	XFS_SB_VERSION_HASATTR(sbp)	xfs_sb_version_hasattr(sbp)
 static inline int xfs_sb_version_hasattr(xfs_sb_t *sbp)
 {
 	return ((sbp)->sb_versionnum == XFS_SB_VERSION_2) || \
@@ -329,7 +356,6 @@ static inline int xfs_sb_version_hasattr(xfs_sb_t *sbp)
 		  ((sbp)->sb_versionnum & XFS_SB_VERSION_ATTRBIT));
 }
 
-#define	XFS_SB_VERSION_ADDATTR(sbp)	xfs_sb_version_addattr(sbp)
 static inline void xfs_sb_version_addattr(xfs_sb_t *sbp)
 {
 	(sbp)->sb_versionnum = (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \
@@ -339,7 +365,6 @@ static inline void xfs_sb_version_addattr(xfs_sb_t *sbp)
 			(XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT)));
 }
 
-#define	XFS_SB_VERSION_HASNLINK(sbp)	xfs_sb_version_hasnlink(sbp)
 static inline int xfs_sb_version_hasnlink(xfs_sb_t *sbp)
 {
 	return ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
@@ -347,7 +372,6 @@ static inline int xfs_sb_version_hasnlink(xfs_sb_t *sbp)
 		  ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT));
 }
 
-#define	XFS_SB_VERSION_ADDNLINK(sbp)	xfs_sb_version_addnlink(sbp)
 static inline void xfs_sb_version_addnlink(xfs_sb_t *sbp)
 {
 	(sbp)->sb_versionnum = ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \
@@ -355,115 +379,63 @@ static inline void xfs_sb_version_addnlink(xfs_sb_t *sbp)
 		((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT));
 }
 
-#define	XFS_SB_VERSION_HASQUOTA(sbp)	xfs_sb_version_hasquota(sbp)
 static inline int xfs_sb_version_hasquota(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT);
 }
 
-#define	XFS_SB_VERSION_ADDQUOTA(sbp)	xfs_sb_version_addquota(sbp)
 static inline void xfs_sb_version_addquota(xfs_sb_t *sbp)
 {
 	(sbp)->sb_versionnum = \
 		 (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 ? \
 			((sbp)->sb_versionnum | XFS_SB_VERSION_QUOTABIT) : \
-			(XFS_SB_VERSION_TONEW((sbp)->sb_versionnum) | \
+			(xfs_sb_version_tonew((sbp)->sb_versionnum) | \
 			 XFS_SB_VERSION_QUOTABIT));
 }
 
-#define	XFS_SB_VERSION_HASALIGN(sbp)	xfs_sb_version_hasalign(sbp)
 static inline int xfs_sb_version_hasalign(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT);
 }
 
-#define	XFS_SB_VERSION_SUBALIGN(sbp)	xfs_sb_version_subalign(sbp)
-static inline void xfs_sb_version_subalign(xfs_sb_t *sbp)
-{
-	(sbp)->sb_versionnum = \
-	 XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT);
-}
-
-#define XFS_SB_VERSION_HASDALIGN(sbp)	xfs_sb_version_hasdalign(sbp)
 static inline int xfs_sb_version_hasdalign(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT);
 }
 
-#define XFS_SB_VERSION_ADDDALIGN(sbp)	xfs_sb_version_adddalign(sbp)
-static inline int xfs_sb_version_adddalign(xfs_sb_t *sbp)
-{
-	return (sbp)->sb_versionnum = \
-		((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT);
-}
-
-#define XFS_SB_VERSION_HASSHARED(sbp)	xfs_sb_version_hasshared(sbp)
 static inline int xfs_sb_version_hasshared(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT);
 }
 
-#define XFS_SB_VERSION_ADDSHARED(sbp)	xfs_sb_version_addshared(sbp)
-static inline int xfs_sb_version_addshared(xfs_sb_t *sbp)
-{
-	return (sbp)->sb_versionnum = \
-		((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT);
-}
-
-#define XFS_SB_VERSION_SUBSHARED(sbp)	xfs_sb_version_subshared(sbp)
-static inline int xfs_sb_version_subshared(xfs_sb_t *sbp)
-{
-	return (sbp)->sb_versionnum = \
-		((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT);
-}
-
-#define XFS_SB_VERSION_HASDIRV2(sbp)	xfs_sb_version_hasdirv2(sbp)
 static inline int xfs_sb_version_hasdirv2(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT);
 }
 
-#define XFS_SB_VERSION_HASLOGV2(sbp)   xfs_sb_version_haslogv2(sbp)
 static inline int xfs_sb_version_haslogv2(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT);
 }
 
-#define XFS_SB_VERSION_HASEXTFLGBIT(sbp)	xfs_sb_version_hasextflgbit(sbp)
 static inline int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT);
 }
 
-#define XFS_SB_VERSION_ADDEXTFLGBIT(sbp)	xfs_sb_version_addextflgbit(sbp)
-static inline int xfs_sb_version_addextflgbit(xfs_sb_t *sbp)
-{
-	return (sbp)->sb_versionnum = \
-		((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT);
-}
-
-#define XFS_SB_VERSION_SUBEXTFLGBIT(sbp)	xfs_sb_version_subextflgbit(sbp)
-static inline int xfs_sb_version_subextflgbit(xfs_sb_t *sbp)
-{
-	return (sbp)->sb_versionnum = \
-		((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT);
-}
-
-#define XFS_SB_VERSION_HASSECTOR(sbp)   xfs_sb_version_hassector(sbp)
 static inline int xfs_sb_version_hassector(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 		((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
 }
 
-#define XFS_SB_VERSION_HASMOREBITS(sbp)	xfs_sb_version_hasmorebits(sbp)
 static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
@@ -476,24 +448,22 @@ static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
  * For example, for a bit defined as XFS_SB_VERSION2_FUNBIT, has a macro:
  *
  * SB_VERSION_HASFUNBIT(xfs_sb_t *sbp)
- *	((XFS_SB_VERSION_HASMOREBITS(sbp) &&
+ *	((xfs_sb_version_hasmorebits(sbp) &&
  *	 ((sbp)->sb_features2 & XFS_SB_VERSION2_FUNBIT)
  */
 
 static inline int xfs_sb_version_haslazysbcount(xfs_sb_t *sbp)
 {
-	return (XFS_SB_VERSION_HASMOREBITS(sbp) &&	\
+	return (xfs_sb_version_hasmorebits(sbp) &&	\
 		((sbp)->sb_features2 & XFS_SB_VERSION2_LAZYSBCOUNTBIT));
 }
 
-#define XFS_SB_VERSION_HASATTR2(sbp)	xfs_sb_version_hasattr2(sbp)
 static inline int xfs_sb_version_hasattr2(xfs_sb_t *sbp)
 {
-	return (XFS_SB_VERSION_HASMOREBITS(sbp)) &&	\
+	return (xfs_sb_version_hasmorebits(sbp)) &&	\
 		((sbp)->sb_features2 & XFS_SB_VERSION2_ATTR2BIT);
 }
 
-#define XFS_SB_VERSION_ADDATTR2(sbp)	xfs_sb_version_addattr2(sbp)
 static inline void xfs_sb_version_addattr2(xfs_sb_t *sbp)
 {
 	((sbp)->sb_versionnum =	\
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 7f40628d85c7..b5effce00089 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -341,7 +341,6 @@ typedef struct xfs_trans {
 	unsigned int		t_rtx_res;	/* # of rt extents resvd */
 	unsigned int		t_rtx_res_used;	/* # of resvd rt extents used */
 	xfs_log_ticket_t	t_ticket;	/* log mgr ticket */
-	sema_t			t_sema;		/* sema for commit completion */
 	xfs_lsn_t		t_lsn;		/* log seq num of start of
 						 * transaction. */
 	xfs_lsn_t		t_commit_lsn;	/* log seq num of end of
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 60b6b898022b..4e5c010f5040 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -304,7 +304,8 @@ xfs_trans_read_buf(
 	if (tp == NULL) {
 		bp = xfs_buf_read_flags(target, blkno, len, flags | BUF_BUSY);
 		if (!bp)
-			return XFS_ERROR(ENOMEM);
+			return (flags & XFS_BUF_TRYLOCK) ?
+					EAGAIN : XFS_ERROR(ENOMEM);
 
 		if ((bp != NULL) && (XFS_BUF_GETERROR(bp) != 0)) {
 			xfs_ioerror_alert("xfs_trans_read_buf", mp,
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 45d740df53b7..47c45ff4a067 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -40,28 +40,6 @@
 #include "xfs_itable.h"
 #include "xfs_utils.h"
 
-/*
- * xfs_get_dir_entry is used to get a reference to an inode given
- * its parent directory inode and the name of the file.	 It does
- * not lock the child inode, and it unlocks the directory before
- * returning.  The directory's generation number is returned for
- * use by a later call to xfs_lock_dir_and_entry.
- */
-int
-xfs_get_dir_entry(
-	bhv_vname_t	*dentry,
-	xfs_inode_t	**ipp)
-{
-	bhv_vnode_t	*vp;
-
-	vp = VNAME_TO_VNODE(dentry);
-
-	*ipp = xfs_vtoi(vp);
-	if (!*ipp)
-		return XFS_ERROR(ENOENT);
-	VN_HOLD(vp);
-	return 0;
-}
 
 int
 xfs_dir_lookup_int(
@@ -339,10 +317,10 @@ xfs_bump_ino_vers2(
 	ip->i_d.di_onlink = 0;
 	memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
 	mp = tp->t_mountp;
-	if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+	if (!xfs_sb_version_hasnlink(&mp->m_sb)) {
 		spin_lock(&mp->m_sb_lock);
-		if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
-			XFS_SB_VERSION_ADDNLINK(&mp->m_sb);
+		if (!xfs_sb_version_hasnlink(&mp->m_sb)) {
+			xfs_sb_version_addnlink(&mp->m_sb);
 			spin_unlock(&mp->m_sb_lock);
 			xfs_mod_sb(tp, XFS_SB_VERSIONNUM);
 		} else {
diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h
index f857fcccb723..c4c4a6aa6549 100644
--- a/fs/xfs/xfs_utils.h
+++ b/fs/xfs/xfs_utils.h
@@ -21,7 +21,6 @@
 #define IRELE(ip)	VN_RELE(XFS_ITOV(ip))
 #define IHOLD(ip)	VN_HOLD(XFS_ITOV(ip))
 
-extern int xfs_get_dir_entry (bhv_vname_t *, xfs_inode_t **);
 extern int xfs_dir_lookup_int (xfs_inode_t *, uint, bhv_vname_t *, xfs_ino_t *,
 				xfs_inode_t **);
 extern int xfs_truncate_file (xfs_mount_t *, xfs_inode_t *);
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index 7321304a69cc..4c132a87d437 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -43,7 +43,6 @@
 #include "xfs_error.h"
 #include "xfs_bmap.h"
 #include "xfs_rw.h"
-#include "xfs_refcache.h"
 #include "xfs_buf_item.h"
 #include "xfs_log_priv.h"
 #include "xfs_dir2_trace.h"
@@ -113,9 +112,6 @@ xfs_init(void)
 	xfs_ili_zone =
 		kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili",
 					KM_ZONE_SPREAD, NULL);
-	xfs_icluster_zone =
-		kmem_zone_init_flags(sizeof(xfs_icluster_t), "xfs_icluster",
-					KM_ZONE_SPREAD, NULL);
 
 	/*
 	 * Allocate global trace buffers.
@@ -153,11 +149,9 @@ xfs_cleanup(void)
 	extern kmem_zone_t	*xfs_inode_zone;
 	extern kmem_zone_t	*xfs_efd_zone;
 	extern kmem_zone_t	*xfs_efi_zone;
-	extern kmem_zone_t	*xfs_icluster_zone;
 
 	xfs_cleanup_procfs();
 	xfs_sysctl_unregister();
-	xfs_refcache_destroy();
 	xfs_filestream_uninit();
 	xfs_mru_cache_uninit();
 	xfs_acl_zone_destroy(xfs_acl_zone);
@@ -189,7 +183,6 @@ xfs_cleanup(void)
 	kmem_zone_destroy(xfs_efi_zone);
 	kmem_zone_destroy(xfs_ifork_zone);
 	kmem_zone_destroy(xfs_ili_zone);
-	kmem_zone_destroy(xfs_icluster_zone);
 }
 
 /*
@@ -330,7 +323,7 @@ xfs_finish_flags(
 	int			ronly = (mp->m_flags & XFS_MOUNT_RDONLY);
 
 	/* Fail a mount where the logbuf is smaller then the log stripe */
-	if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) {
+	if (xfs_sb_version_haslogv2(&mp->m_sb)) {
 		if ((ap->logbufsize <= 0) &&
 		    (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) {
 			mp->m_logbsize = mp->m_sb.sb_logsunit;
@@ -349,9 +342,8 @@ xfs_finish_flags(
 		}
 	}
 
-	if (XFS_SB_VERSION_HASATTR2(&mp->m_sb)) {
+	if (xfs_sb_version_hasattr2(&mp->m_sb))
 		mp->m_flags |= XFS_MOUNT_ATTR2;
-	}
 
 	/*
 	 * prohibit r/w mounts of read-only filesystems
@@ -366,7 +358,7 @@ xfs_finish_flags(
 	 * check for shared mount.
 	 */
 	if (ap->flags & XFSMNT_SHARED) {
-		if (!XFS_SB_VERSION_HASSHARED(&mp->m_sb))
+		if (!xfs_sb_version_hasshared(&mp->m_sb))
 			return XFS_ERROR(EINVAL);
 
 		/*
@@ -512,7 +504,7 @@ xfs_mount(
 	if (!error && logdev && logdev != ddev) {
 		unsigned int	log_sector_size = BBSIZE;
 
-		if (XFS_SB_VERSION_HASSECTOR(&mp->m_sb))
+		if (xfs_sb_version_hassector(&mp->m_sb))
 			log_sector_size = mp->m_sb.sb_logsectsize;
 		error = xfs_setsize_buftarg(mp->m_logdev_targp,
 					    mp->m_sb.sb_blocksize,
@@ -574,7 +566,7 @@ xfs_unmount(
 #ifdef HAVE_DMAPI
 	if (mp->m_flags & XFS_MOUNT_DMAPI) {
 		error = XFS_SEND_PREUNMOUNT(mp,
-				rvp, DM_RIGHT_NULL, rvp, DM_RIGHT_NULL,
+				rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL,
 				NULL, NULL, 0, 0,
 				(mp->m_dmevmask & (1<<DM_EVENT_PREUNMOUNT))?
 					0:DM_FLAGS_UNWANTED);
@@ -585,11 +577,6 @@ xfs_unmount(
 					0 : DM_FLAGS_UNWANTED;
 	}
 #endif
-	/*
-	 * First blow any referenced inode from this file system
-	 * out of the reference cache, and delete the timer.
-	 */
-	xfs_refcache_purge_mp(mp);
 
 	/*
 	 * Blow away any referenced inode in the filestreams cache.
@@ -630,7 +617,7 @@ out:
 		/* Note: mp structure must still exist for
 		 * XFS_SEND_UNMOUNT() call.
 		 */
-		XFS_SEND_UNMOUNT(mp, error == 0 ? rvp : NULL,
+		XFS_SEND_UNMOUNT(mp, error == 0 ? rip : NULL,
 			DM_RIGHT_NULL, 0, error, unmount_event_flags);
 	}
 	if (xfs_unmountfs_needed) {
@@ -653,7 +640,6 @@ xfs_quiesce_fs(
 {
 	int			count = 0, pincount;
 
-	xfs_refcache_purge_mp(mp);
 	xfs_flush_buftarg(mp->m_ddev_targp, 0);
 	xfs_finish_reclaim_all(mp, 0);
 
@@ -1324,18 +1310,6 @@ xfs_syncsub(
 	}
 
 	/*
-	 * If this is the periodic sync, then kick some entries out of
-	 * the reference cache.  This ensures that idle entries are
-	 * eventually kicked out of the cache.
-	 */
-	if (flags & SYNC_REFCACHE) {
-		if (flags & SYNC_WAIT)
-			xfs_refcache_purge_mp(mp);
-		else
-			xfs_refcache_purge_some(mp);
-	}
-
-	/*
 	 * If asked, update the disk superblock with incore counter values if we
 	 * are using non-persistent counters so that they don't get too far out
 	 * of sync if we crash or get a forced shutdown. We don't want to force
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 51305242ff8c..3418c94bcf17 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -48,7 +48,6 @@
 #include "xfs_quota.h"
 #include "xfs_utils.h"
 #include "xfs_rtalloc.h"
-#include "xfs_refcache.h"
 #include "xfs_trans_space.h"
 #include "xfs_log_priv.h"
 #include "xfs_filestream.h"
@@ -327,7 +326,7 @@ xfs_setattr(
 		if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) &&
 		    !(flags & ATTR_DMI)) {
 			int dmflags = AT_DELAY_FLAG(flags) | DM_SEM_FLAG_WR;
-			code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, vp,
+			code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, ip,
 				vap->va_size, 0, dmflags, NULL);
 			if (code) {
 				lock_flags = 0;
@@ -634,6 +633,15 @@ xfs_setattr(
 	 * Truncate file.  Must have write permission and not be a directory.
 	 */
 	if (mask & XFS_AT_SIZE) {
+		/*
+		 * Only change the c/mtime if we are changing the size
+		 * or we are explicitly asked to change it. This handles
+		 * the semantic difference between truncate() and ftruncate()
+		 * as implemented in the VFS.
+		 */
+		if (vap->va_size != ip->i_size || (mask & XFS_AT_CTIME))
+			timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG;
+
 		if (vap->va_size > ip->i_size) {
 			xfs_igrow_finish(tp, ip, vap->va_size,
 			    !(flags & ATTR_DMI));
@@ -662,10 +670,6 @@ xfs_setattr(
 			 */
 			xfs_iflags_set(ip, XFS_ITRUNCATED);
 		}
-		/*
-		 * Have to do this even if the file's size doesn't change.
-		 */
-		timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG;
 	}
 
 	/*
@@ -877,7 +881,7 @@ xfs_setattr(
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE) &&
 	    !(flags & ATTR_DMI)) {
-		(void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, vp, DM_RIGHT_NULL,
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
 					NULL, DM_RIGHT_NULL, NULL, NULL,
 					0, 0, AT_DELAY_FLAG(flags));
 	}
@@ -1520,12 +1524,6 @@ xfs_release(
 			xfs_flush_pages(ip, 0, -1, XFS_B_ASYNC, FI_NONE);
 	}
 
-#ifdef HAVE_REFCACHE
-	/* If we are in the NFS reference cache then don't do this now */
-	if (ip->i_refcache)
-		return 0;
-#endif
-
 	if (ip->i_d.di_nlink != 0) {
 		if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
 		     ((ip->i_size > 0) || (VN_CACHED(vp) > 0 ||
@@ -1588,9 +1586,8 @@ xfs_inactive(
 
 	mp = ip->i_mount;
 
-	if (ip->i_d.di_nlink == 0 && DM_EVENT_ENABLED(ip, DM_EVENT_DESTROY)) {
-		(void) XFS_SEND_DESTROY(mp, vp, DM_RIGHT_NULL);
-	}
+	if (ip->i_d.di_nlink == 0 && DM_EVENT_ENABLED(ip, DM_EVENT_DESTROY))
+		XFS_SEND_DESTROY(mp, ip, DM_RIGHT_NULL);
 
 	error = 0;
 
@@ -1766,7 +1763,7 @@ int
 xfs_lookup(
 	xfs_inode_t		*dp,
 	bhv_vname_t		*dentry,
-	bhv_vnode_t		**vpp)
+	xfs_inode_t		**ipp)
 {
 	xfs_inode_t		*ip;
 	xfs_ino_t		e_inum;
@@ -1781,7 +1778,7 @@ xfs_lookup(
 	lock_mode = xfs_ilock_map_shared(dp);
 	error = xfs_dir_lookup_int(dp, lock_mode, dentry, &e_inum, &ip);
 	if (!error) {
-		*vpp = XFS_ITOV(ip);
+		*ipp = ip;
 		xfs_itrace_ref(ip);
 	}
 	xfs_iunlock_map_shared(dp, lock_mode);
@@ -1794,14 +1791,12 @@ xfs_create(
 	bhv_vname_t		*dentry,
 	mode_t			mode,
 	xfs_dev_t		rdev,
-	bhv_vnode_t		**vpp,
+	xfs_inode_t		**ipp,
 	cred_t			*credp)
 {
 	char			*name = VNAME(dentry);
 	xfs_mount_t	        *mp = dp->i_mount;
-	bhv_vnode_t		*dir_vp = XFS_ITOV(dp);
 	xfs_inode_t		*ip;
-	bhv_vnode_t	        *vp = NULL;
 	xfs_trans_t		*tp;
 	int                     error;
 	xfs_bmap_free_t		free_list;
@@ -1815,14 +1810,14 @@ xfs_create(
 	uint			resblks;
 	int			namelen;
 
-	ASSERT(!*vpp);
+	ASSERT(!*ipp);
 	xfs_itrace_entry(dp);
 
 	namelen = VNAMELEN(dentry);
 
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_CREATE)) {
 		error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
-				dir_vp, DM_RIGHT_NULL, NULL,
+				dp, DM_RIGHT_NULL, NULL,
 				DM_RIGHT_NULL, name, NULL,
 				mode, 0, 0);
 
@@ -1914,7 +1909,7 @@ xfs_create(
 	 * the transaction cancel unlocking dp so don't do it explicitly in the
 	 * error path.
 	 */
-	VN_HOLD(dir_vp);
+	IHOLD(dp);
 	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
 	unlock_dp_on_error = B_FALSE;
 
@@ -1952,7 +1947,6 @@ xfs_create(
 	 * vnode to the caller, we bump the vnode ref count now.
 	 */
 	IHOLD(ip);
-	vp = XFS_ITOV(ip);
 
 	error = xfs_bmap_finish(&tp, &free_list, &committed);
 	if (error) {
@@ -1970,16 +1964,16 @@ xfs_create(
 	XFS_QM_DQRELE(mp, udqp);
 	XFS_QM_DQRELE(mp, gdqp);
 
-	*vpp = vp;
+	*ipp = ip;
 
 	/* Fallthrough to std_return with error = 0  */
 
 std_return:
-	if ((*vpp || (error != 0 && dm_event_sent != 0)) &&
+	if ((*ipp || (error != 0 && dm_event_sent != 0)) &&
 	    DM_EVENT_ENABLED(dp, DM_EVENT_POSTCREATE)) {
 		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE,
-			dir_vp, DM_RIGHT_NULL,
-			*vpp ? vp:NULL,
+			dp, DM_RIGHT_NULL,
+			*ipp ? ip : NULL,
 			DM_RIGHT_NULL, name, NULL,
 			mode, error, 0);
 	}
@@ -2274,44 +2268,32 @@ xfs_remove(
 	xfs_inode_t             *dp,
 	bhv_vname_t		*dentry)
 {
-	bhv_vnode_t		*dir_vp = XFS_ITOV(dp);
 	char			*name = VNAME(dentry);
 	xfs_mount_t		*mp = dp->i_mount;
-	xfs_inode_t             *ip;
+	xfs_inode_t             *ip = VNAME_TO_INODE(dentry);
+	int			namelen = VNAMELEN(dentry);
 	xfs_trans_t             *tp = NULL;
 	int                     error = 0;
 	xfs_bmap_free_t         free_list;
 	xfs_fsblock_t           first_block;
 	int			cancel_flags;
 	int			committed;
-	int			dm_di_mode = 0;
 	int			link_zero;
 	uint			resblks;
-	int			namelen;
 
 	xfs_itrace_entry(dp);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
-	namelen = VNAMELEN(dentry);
-
-	if (!xfs_get_dir_entry(dentry, &ip)) {
-	        dm_di_mode = ip->i_d.di_mode;
-		IRELE(ip);
-	}
-
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_REMOVE)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dir_vp,
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dp,
 					DM_RIGHT_NULL, NULL, DM_RIGHT_NULL,
-					name, NULL, dm_di_mode, 0, 0);
+					name, NULL, ip->i_d.di_mode, 0, 0);
 		if (error)
 			return error;
 	}
 
-	/* From this point on, return through std_return */
-	ip = NULL;
-
 	/*
 	 * We need to get a reference to ip before we get our log
 	 * reservation. The reason for this is that we cannot call
@@ -2324,13 +2306,7 @@ xfs_remove(
 	 * when we call xfs_iget.  Instead we get an unlocked reference
 	 * to the inode before getting our log reservation.
 	 */
-	error = xfs_get_dir_entry(dentry, &ip);
-	if (error) {
-		REMOVE_DEBUG_TRACE(__LINE__);
-		goto std_return;
-	}
-
-	dm_di_mode = ip->i_d.di_mode;
+	IHOLD(ip);
 
 	xfs_itrace_entry(ip);
 	xfs_itrace_ref(ip);
@@ -2449,14 +2425,6 @@ xfs_remove(
 	}
 
 	/*
-	 * Before we drop our extra reference to the inode, purge it
-	 * from the refcache if it is there.  By waiting until afterwards
-	 * to do the IRELE, we ensure that we won't go inactive in the
-	 * xfs_refcache_purge_ip routine (although that would be OK).
-	 */
-	xfs_refcache_purge_ip(ip);
-
-	/*
 	 * If we are using filestreams, kill the stream association.
 	 * If the file is still open it may get a new one but that
 	 * will get killed on last close in xfs_close() so we don't
@@ -2472,9 +2440,9 @@ xfs_remove(
  std_return:
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTREMOVE)) {
 		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE,
-				dir_vp, DM_RIGHT_NULL,
+				dp, DM_RIGHT_NULL,
 				NULL, DM_RIGHT_NULL,
-				name, NULL, dm_di_mode, error, 0);
+				name, NULL, ip->i_d.di_mode, error, 0);
 	}
 	return error;
 
@@ -2495,14 +2463,6 @@ xfs_remove(
 	cancel_flags |= XFS_TRANS_ABORT;
 	xfs_trans_cancel(tp, cancel_flags);
 
-	/*
-	 * Before we drop our extra reference to the inode, purge it
-	 * from the refcache if it is there.  By waiting until afterwards
-	 * to do the IRELE, we ensure that we won't go inactive in the
-	 * xfs_refcache_purge_ip routine (although that would be OK).
-	 */
-	xfs_refcache_purge_ip(ip);
-
 	IRELE(ip);
 
 	goto std_return;
@@ -2511,12 +2471,10 @@ xfs_remove(
 int
 xfs_link(
 	xfs_inode_t		*tdp,
-	bhv_vnode_t		*src_vp,
+	xfs_inode_t		*sip,
 	bhv_vname_t		*dentry)
 {
-	bhv_vnode_t		*target_dir_vp = XFS_ITOV(tdp);
 	xfs_mount_t		*mp = tdp->i_mount;
-	xfs_inode_t		*sip = xfs_vtoi(src_vp);
 	xfs_trans_t		*tp;
 	xfs_inode_t		*ips[2];
 	int			error;
@@ -2529,18 +2487,18 @@ xfs_link(
 	int			target_namelen;
 
 	xfs_itrace_entry(tdp);
-	xfs_itrace_entry(xfs_vtoi(src_vp));
+	xfs_itrace_entry(sip);
 
 	target_namelen = VNAMELEN(dentry);
-	ASSERT(!VN_ISDIR(src_vp));
+	ASSERT(!S_ISDIR(sip->i_d.di_mode));
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
 	if (DM_EVENT_ENABLED(tdp, DM_EVENT_LINK)) {
 		error = XFS_SEND_NAMESP(mp, DM_EVENT_LINK,
-					target_dir_vp, DM_RIGHT_NULL,
-					src_vp, DM_RIGHT_NULL,
+					tdp, DM_RIGHT_NULL,
+					sip, DM_RIGHT_NULL,
 					target_name, NULL, 0, 0, 0);
 		if (error)
 			return error;
@@ -2584,8 +2542,8 @@ xfs_link(
 	 * xfs_trans_cancel will both unlock the inodes and
 	 * decrement the associated ref counts.
 	 */
-	VN_HOLD(src_vp);
-	VN_HOLD(target_dir_vp);
+	IHOLD(sip);
+	IHOLD(tdp);
 	xfs_trans_ijoin(tp, sip, XFS_ILOCK_EXCL);
 	xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
 
@@ -2650,8 +2608,8 @@ xfs_link(
 std_return:
 	if (DM_EVENT_ENABLED(sip, DM_EVENT_POSTLINK)) {
 		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTLINK,
-				target_dir_vp, DM_RIGHT_NULL,
-				src_vp, DM_RIGHT_NULL,
+				tdp, DM_RIGHT_NULL,
+				sip, DM_RIGHT_NULL,
 				target_name, NULL, 0, error, 0);
 	}
 	return error;
@@ -2671,15 +2629,13 @@ xfs_mkdir(
 	xfs_inode_t             *dp,
 	bhv_vname_t		*dentry,
 	mode_t			mode,
-	bhv_vnode_t		**vpp,
+	xfs_inode_t		**ipp,
 	cred_t			*credp)
 {
-	bhv_vnode_t		*dir_vp = XFS_ITOV(dp);
 	char			*dir_name = VNAME(dentry);
 	int			dir_namelen = VNAMELEN(dentry);
 	xfs_mount_t		*mp = dp->i_mount;
 	xfs_inode_t		*cdp;	/* inode of created dir */
-	bhv_vnode_t		*cvp;	/* vnode of created dir */
 	xfs_trans_t		*tp;
 	int			cancel_flags;
 	int			error;
@@ -2700,7 +2656,7 @@ xfs_mkdir(
 
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_CREATE)) {
 		error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
-					dir_vp, DM_RIGHT_NULL, NULL,
+					dp, DM_RIGHT_NULL, NULL,
 					DM_RIGHT_NULL, dir_name, NULL,
 					mode, 0, 0);
 		if (error)
@@ -2786,7 +2742,7 @@ xfs_mkdir(
 	 * from here on will result in the transaction cancel
 	 * unlocking dp so don't do it explicitly in the error path.
 	 */
-	VN_HOLD(dir_vp);
+	IHOLD(dp);
 	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
 	unlock_dp_on_error = B_FALSE;
 
@@ -2817,11 +2773,9 @@ xfs_mkdir(
 	if (error)
 		goto error2;
 
-	cvp = XFS_ITOV(cdp);
-
 	created = B_TRUE;
 
-	*vpp = cvp;
+	*ipp = cdp;
 	IHOLD(cdp);
 
 	/*
@@ -2858,8 +2812,8 @@ std_return:
 	if ((created || (error != 0 && dm_event_sent != 0)) &&
 	    DM_EVENT_ENABLED(dp, DM_EVENT_POSTCREATE)) {
 		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE,
-					dir_vp, DM_RIGHT_NULL,
-					created ? XFS_ITOV(cdp):NULL,
+					dp, DM_RIGHT_NULL,
+					created ? cdp : NULL,
 					DM_RIGHT_NULL,
 					dir_name, NULL,
 					mode, error, 0);
@@ -2891,14 +2845,13 @@ xfs_rmdir(
 	char			*name = VNAME(dentry);
 	int			namelen = VNAMELEN(dentry);
 	xfs_mount_t		*mp = dp->i_mount;
-  	xfs_inode_t             *cdp;   /* child directory */
+  	xfs_inode_t             *cdp = VNAME_TO_INODE(dentry);
 	xfs_trans_t             *tp;
 	int                     error;
 	xfs_bmap_free_t         free_list;
 	xfs_fsblock_t           first_block;
 	int			cancel_flags;
 	int			committed;
-	int			dm_di_mode = S_IFDIR;
 	int			last_cdp_link;
 	uint			resblks;
 
@@ -2907,24 +2860,15 @@ xfs_rmdir(
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
-	if (!xfs_get_dir_entry(dentry, &cdp)) {
-	        dm_di_mode = cdp->i_d.di_mode;
-		IRELE(cdp);
-	}
-
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_REMOVE)) {
 		error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE,
-					dir_vp, DM_RIGHT_NULL,
+					dp, DM_RIGHT_NULL,
 					NULL, DM_RIGHT_NULL,
-					name, NULL, dm_di_mode, 0, 0);
+					name, NULL, cdp->i_d.di_mode, 0, 0);
 		if (error)
 			return XFS_ERROR(error);
 	}
 
-	/* Return through std_return after this point. */
-
-	cdp = NULL;
-
 	/*
 	 * We need to get a reference to cdp before we get our log
 	 * reservation.  The reason for this is that we cannot call
@@ -2937,13 +2881,7 @@ xfs_rmdir(
 	 * when we call xfs_iget.  Instead we get an unlocked reference
 	 * to the inode before getting our log reservation.
 	 */
-	error = xfs_get_dir_entry(dentry, &cdp);
-	if (error) {
-		REMOVE_DEBUG_TRACE(__LINE__);
-		goto std_return;
-	}
-	mp = dp->i_mount;
-	dm_di_mode = cdp->i_d.di_mode;
+	IHOLD(cdp);
 
 	/*
 	 * Get the dquots for the inodes.
@@ -3098,9 +3036,9 @@ xfs_rmdir(
  std_return:
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTREMOVE)) {
 		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE,
-					dir_vp, DM_RIGHT_NULL,
+					dp, DM_RIGHT_NULL,
 					NULL, DM_RIGHT_NULL,
-					name, NULL, dm_di_mode,
+					name, NULL, cdp->i_d.di_mode,
 					error, 0);
 	}
 	return error;
@@ -3121,10 +3059,9 @@ xfs_symlink(
 	bhv_vname_t		*dentry,
 	char			*target_path,
 	mode_t			mode,
-	bhv_vnode_t		**vpp,
+	xfs_inode_t		**ipp,
 	cred_t			*credp)
 {
-	bhv_vnode_t		*dir_vp = XFS_ITOV(dp);
 	xfs_mount_t		*mp = dp->i_mount;
 	xfs_trans_t		*tp;
 	xfs_inode_t		*ip;
@@ -3150,7 +3087,7 @@ xfs_symlink(
 	char			*link_name = VNAME(dentry);
 	int			link_namelen;
 
-	*vpp = NULL;
+	*ipp = NULL;
 	error = 0;
 	ip = NULL;
 	tp = NULL;
@@ -3195,7 +3132,7 @@ xfs_symlink(
 	}
 
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_SYMLINK)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dir_vp,
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dp,
 					DM_RIGHT_NULL, NULL, DM_RIGHT_NULL,
 					link_name, target_path, 0, 0, 0);
 		if (error)
@@ -3289,7 +3226,7 @@ xfs_symlink(
 	 * transaction cancel unlocking dp so don't do it explicitly in the
 	 * error path.
 	 */
-	VN_HOLD(dir_vp);
+	IHOLD(dp);
 	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
 	unlock_dp_on_error = B_FALSE;
 
@@ -3399,19 +3336,14 @@ xfs_symlink(
 std_return:
 	if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTSYMLINK)) {
 		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTSYMLINK,
-					dir_vp, DM_RIGHT_NULL,
-					error ? NULL : XFS_ITOV(ip),
+					dp, DM_RIGHT_NULL,
+					error ? NULL : ip,
 					DM_RIGHT_NULL, link_name, target_path,
 					0, error, 0);
 	}
 
-	if (!error) {
-		bhv_vnode_t *vp;
-
-		ASSERT(ip);
-		vp = XFS_ITOV(ip);
-		*vpp = vp;
-	}
+	if (!error)
+		*ipp = ip;
 	return error;
 
  error2:
@@ -3431,60 +3363,11 @@ std_return:
 }
 
 int
-xfs_rwlock(
-	xfs_inode_t	*ip,
-	bhv_vrwlock_t	locktype)
-{
-	if (S_ISDIR(ip->i_d.di_mode))
-		return 1;
-	if (locktype == VRWLOCK_WRITE) {
-		xfs_ilock(ip, XFS_IOLOCK_EXCL);
-	} else if (locktype == VRWLOCK_TRY_READ) {
-		return xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED);
-	} else if (locktype == VRWLOCK_TRY_WRITE) {
-		return xfs_ilock_nowait(ip, XFS_IOLOCK_EXCL);
-	} else {
-		ASSERT((locktype == VRWLOCK_READ) ||
-		       (locktype == VRWLOCK_WRITE_DIRECT));
-		xfs_ilock(ip, XFS_IOLOCK_SHARED);
-	}
-
-	return 1;
-}
-
-
-void
-xfs_rwunlock(
-	xfs_inode_t     *ip,
-	bhv_vrwlock_t	locktype)
-{
- 	if (S_ISDIR(ip->i_d.di_mode))
-  		return;
-	if (locktype == VRWLOCK_WRITE) {
-		/*
-		 * In the write case, we may have added a new entry to
-		 * the reference cache.  This might store a pointer to
-		 * an inode to be released in this inode.  If it is there,
-		 * clear the pointer and release the inode after unlocking
-		 * this one.
-		 */
-		xfs_refcache_iunlock(ip, XFS_IOLOCK_EXCL);
-	} else {
-		ASSERT((locktype == VRWLOCK_READ) ||
-		       (locktype == VRWLOCK_WRITE_DIRECT));
-		xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-	}
-	return;
-}
-
-
-int
 xfs_inode_flush(
 	xfs_inode_t	*ip,
 	int		flags)
 {
 	xfs_mount_t	*mp = ip->i_mount;
-	xfs_inode_log_item_t *iip = ip->i_itemp;
 	int		error = 0;
 
 	if (XFS_FORCED_SHUTDOWN(mp))
@@ -3494,33 +3377,9 @@ xfs_inode_flush(
 	 * Bypass inodes which have already been cleaned by
 	 * the inode flush clustering code inside xfs_iflush
 	 */
-	if ((ip->i_update_core == 0) &&
-	    ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL)))
+	if (xfs_inode_clean(ip))
 		return 0;
 
-	if (flags & FLUSH_LOG) {
-		if (iip && iip->ili_last_lsn) {
-			xlog_t		*log = mp->m_log;
-			xfs_lsn_t	sync_lsn;
-			int		log_flags = XFS_LOG_FORCE;
-
-			spin_lock(&log->l_grant_lock);
-			sync_lsn = log->l_last_sync_lsn;
-			spin_unlock(&log->l_grant_lock);
-
-			if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) > 0)) {
-				if (flags & FLUSH_SYNC)
-					log_flags |= XFS_LOG_SYNC;
-				error = xfs_log_force(mp, iip->ili_last_lsn, log_flags);
-				if (error)
-					return error;
-			}
-
-			if (ip->i_update_core == 0)
-				return 0;
-		}
-	}
-
 	/*
 	 * We make this non-blocking if the inode is contended,
 	 * return EAGAIN to indicate to the caller that they
@@ -3528,30 +3387,22 @@ xfs_inode_flush(
 	 * blocking on inodes inside another operation right
 	 * now, they get caught later by xfs_sync.
 	 */
-	if (flags & FLUSH_INODE) {
-		int	flush_flags;
-
-		if (flags & FLUSH_SYNC) {
-			xfs_ilock(ip, XFS_ILOCK_SHARED);
-			xfs_iflock(ip);
-		} else if (xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
-			if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) {
-				xfs_iunlock(ip, XFS_ILOCK_SHARED);
-				return EAGAIN;
-			}
-		} else {
+	if (flags & FLUSH_SYNC) {
+		xfs_ilock(ip, XFS_ILOCK_SHARED);
+		xfs_iflock(ip);
+	} else if (xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
+		if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) {
+			xfs_iunlock(ip, XFS_ILOCK_SHARED);
 			return EAGAIN;
 		}
-
-		if (flags & FLUSH_SYNC)
-			flush_flags = XFS_IFLUSH_SYNC;
-		else
-			flush_flags = XFS_IFLUSH_ASYNC;
-
-		error = xfs_iflush(ip, flush_flags);
-		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	} else {
+		return EAGAIN;
 	}
 
+	error = xfs_iflush(ip, (flags & FLUSH_SYNC) ? XFS_IFLUSH_SYNC
+						    : XFS_IFLUSH_ASYNC_NOBLOCK);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
 	return error;
 }
 
@@ -3694,12 +3545,12 @@ xfs_finish_reclaim(
 	 * We get the flush lock regardless, though, just to make sure
 	 * we don't free it while it is being flushed.
 	 */
-	if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
-		if (!locked) {
-			xfs_ilock(ip, XFS_ILOCK_EXCL);
-			xfs_iflock(ip);
-		}
+	if (!locked) {
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_iflock(ip);
+	}
 
+	if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
 		if (ip->i_update_core ||
 		    ((ip->i_itemp != NULL) &&
 		     (ip->i_itemp->ili_format.ilf_fields != 0))) {
@@ -3719,17 +3570,11 @@ xfs_finish_reclaim(
 		ASSERT(ip->i_update_core == 0);
 		ASSERT(ip->i_itemp == NULL ||
 		       ip->i_itemp->ili_format.ilf_fields == 0);
-		xfs_iunlock(ip, XFS_ILOCK_EXCL);
-	} else if (locked) {
-		/*
-		 * We are not interested in doing an iflush if we're
-		 * in the process of shutting down the filesystem forcibly.
-		 * So, just reclaim the inode.
-		 */
-		xfs_ifunlock(ip);
-		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	}
 
+	xfs_ifunlock(ip);
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
  reclaim:
 	xfs_ireclaim(ip);
 	return 0;
@@ -3845,9 +3690,8 @@ xfs_alloc_file_space(
 		end_dmi_offset = offset+len;
 		if (end_dmi_offset > ip->i_size)
 			end_dmi_offset = ip->i_size;
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, XFS_ITOV(ip),
-			offset, end_dmi_offset - offset,
-			0, NULL);
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, offset,
+				      end_dmi_offset - offset, 0, NULL);
 		if (error)
 			return error;
 	}
@@ -3956,8 +3800,8 @@ dmapi_enospc_check:
 	if (error == ENOSPC && (attr_flags & ATTR_DMI) == 0 &&
 	    DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE)) {
 		error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE,
-				XFS_ITOV(ip), DM_RIGHT_NULL,
-				XFS_ITOV(ip), DM_RIGHT_NULL,
+				ip, DM_RIGHT_NULL,
+				ip, DM_RIGHT_NULL,
 				NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */
 		if (error == 0)
 			goto retry;	/* Maybe DMAPI app. has made space */
@@ -4102,7 +3946,7 @@ xfs_free_file_space(
 	    DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
 		if (end_dmi_offset > ip->i_size)
 			end_dmi_offset = ip->i_size;
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, vp,
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip,
 				offset, end_dmi_offset - offset,
 				AT_DELAY_FLAG(attr_flags), NULL);
 		if (error)
@@ -4132,7 +3976,7 @@ xfs_free_file_space(
 	 * actually need to zero the extent edges.  Otherwise xfs_bunmapi
 	 * will take care of it for us.
 	 */
-	if (rt && !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+	if (rt && !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
 		nimap = 1;
 		error = xfs_bmapi(NULL, ip, startoffset_fsb,
 			1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h
index 4e3970f0e5e3..12e581865bdf 100644
--- a/fs/xfs/xfs_vnodeops.h
+++ b/fs/xfs/xfs_vnodeops.h
@@ -24,22 +24,20 @@ int xfs_fsync(struct xfs_inode *ip, int flag, xfs_off_t start,
 int xfs_release(struct xfs_inode *ip);
 int xfs_inactive(struct xfs_inode *ip);
 int xfs_lookup(struct xfs_inode *dp, bhv_vname_t *dentry,
-		bhv_vnode_t **vpp);
+		struct xfs_inode **ipp);
 int xfs_create(struct xfs_inode *dp, bhv_vname_t *dentry, mode_t mode,
-		xfs_dev_t rdev, bhv_vnode_t **vpp, struct cred *credp);
+		xfs_dev_t rdev, struct xfs_inode **ipp, struct cred *credp);
 int xfs_remove(struct xfs_inode *dp, bhv_vname_t	*dentry);
-int xfs_link(struct xfs_inode *tdp, bhv_vnode_t *src_vp,
+int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
 		bhv_vname_t *dentry);
 int xfs_mkdir(struct xfs_inode *dp, bhv_vname_t *dentry,
-		mode_t mode, bhv_vnode_t **vpp, struct cred *credp);
+		mode_t mode, struct xfs_inode **ipp, struct cred *credp);
 int xfs_rmdir(struct xfs_inode *dp, bhv_vname_t *dentry);
 int xfs_readdir(struct xfs_inode	*dp, void *dirent, size_t bufsize,
 		       xfs_off_t *offset, filldir_t filldir);
 int xfs_symlink(struct xfs_inode *dp, bhv_vname_t *dentry,
-		char *target_path, mode_t mode, bhv_vnode_t **vpp,
+		char *target_path, mode_t mode, struct xfs_inode **ipp,
 		struct cred *credp);
-int xfs_rwlock(struct xfs_inode *ip, bhv_vrwlock_t locktype);
-void xfs_rwunlock(struct xfs_inode *ip, bhv_vrwlock_t locktype);
 int xfs_inode_flush(struct xfs_inode *ip, int flags);
 int xfs_set_dmattrs(struct xfs_inode *ip, u_int evmask, u_int16_t state);
 int xfs_reclaim(struct xfs_inode *ip);
@@ -47,7 +45,7 @@ int xfs_change_file_space(struct xfs_inode *ip, int cmd,
 		xfs_flock64_t *bf, xfs_off_t offset,
 		struct cred *credp, int	attr_flags);
 int xfs_rename(struct xfs_inode *src_dp, bhv_vname_t *src_vname,
-		bhv_vnode_t *target_dir_vp, bhv_vname_t *target_vname);
+		struct xfs_inode *target_dp, bhv_vname_t *target_vname);
 int xfs_attr_get(struct xfs_inode *ip, const char *name, char *value,
 		int *valuelenp, int flags, cred_t *cred);
 int xfs_attr_set(struct xfs_inode *dp, const char *name, char *value,