diff options
Diffstat (limited to 'fs/xfs/xfs_dfrag.c')
| -rw-r--r-- | fs/xfs/xfs_dfrag.c | 63 |
1 files changed, 35 insertions, 28 deletions
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index e00de08dc8ac..e36445ceaf80 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -24,6 +24,9 @@ #include "xfs_ag.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" +#include "xfs_alloc_btree.h" +#include "xfs_ialloc_btree.h" +#include "xfs_btree.h" #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_inode_item.h" @@ -48,44 +51,44 @@ xfs_swapext( xfs_swapext_t *sxp) { xfs_inode_t *ip, *tip; - struct file *file, *tmp_file; + struct fd f, tmp; int error = 0; /* Pull information for the target fd */ - file = fget((int)sxp->sx_fdtarget); - if (!file) { + f = fdget((int)sxp->sx_fdtarget); + if (!f.file) { error = XFS_ERROR(EINVAL); goto out; } - if (!(file->f_mode & FMODE_WRITE) || - !(file->f_mode & FMODE_READ) || - (file->f_flags & O_APPEND)) { + if (!(f.file->f_mode & FMODE_WRITE) || + !(f.file->f_mode & FMODE_READ) || + (f.file->f_flags & O_APPEND)) { error = XFS_ERROR(EBADF); goto out_put_file; } - tmp_file = fget((int)sxp->sx_fdtmp); - if (!tmp_file) { + tmp = fdget((int)sxp->sx_fdtmp); + if (!tmp.file) { error = XFS_ERROR(EINVAL); goto out_put_file; } - if (!(tmp_file->f_mode & FMODE_WRITE) || - !(tmp_file->f_mode & FMODE_READ) || - (tmp_file->f_flags & O_APPEND)) { + if (!(tmp.file->f_mode & FMODE_WRITE) || + !(tmp.file->f_mode & FMODE_READ) || + (tmp.file->f_flags & O_APPEND)) { error = XFS_ERROR(EBADF); goto out_put_tmp_file; } - if (IS_SWAPFILE(file->f_path.dentry->d_inode) || - IS_SWAPFILE(tmp_file->f_path.dentry->d_inode)) { + if (IS_SWAPFILE(file_inode(f.file)) || + IS_SWAPFILE(file_inode(tmp.file))) { error = XFS_ERROR(EINVAL); goto out_put_tmp_file; } - ip = XFS_I(file->f_path.dentry->d_inode); - tip = XFS_I(tmp_file->f_path.dentry->d_inode); + ip = XFS_I(file_inode(f.file)); + tip = XFS_I(file_inode(tmp.file)); if (ip->i_mount != tip->i_mount) { error = XFS_ERROR(EINVAL); @@ -105,9 +108,9 @@ xfs_swapext( error = xfs_swap_extents(ip, tip, sxp); out_put_tmp_file: - fput(tmp_file); + fdput(tmp); out_put_file: - fput(file); + fdput(f); out: return error; } @@ -182,7 +185,7 @@ xfs_swap_extents_check_format( */ if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE) { if (XFS_IFORK_BOFF(ip) && - tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip)) + XFS_BMAP_BMDR_SPACE(tip->i_df.if_broot) > XFS_IFORK_BOFF(ip)) return EINVAL; if (XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) <= XFS_IFORK_MAXEXT(ip, XFS_DATA_FORK)) @@ -192,9 +195,8 @@ xfs_swap_extents_check_format( /* Reciprocal target->temp btree format checks */ if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE) { if (XFS_IFORK_BOFF(tip) && - ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip)) + XFS_BMAP_BMDR_SPACE(ip->i_df.if_broot) > XFS_IFORK_BOFF(tip)) return EINVAL; - if (XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) <= XFS_IFORK_MAXEXT(tip, XFS_DATA_FORK)) return EINVAL; @@ -219,6 +221,14 @@ xfs_swap_extents( int taforkblks = 0; __uint64_t tmp; + /* + * We have no way of updating owner information in the BMBT blocks for + * each inode on CRC enabled filesystems, so to avoid corrupting the + * this metadata we simply don't allow extent swaps to occur. + */ + if (xfs_sb_version_hascrc(&mp->m_sb)) + return XFS_ERROR(EINVAL); + tempifp = kmem_alloc(sizeof(xfs_ifork_t), KM_MAYFAIL); if (!tempifp) { error = XFS_ERROR(ENOMEM); @@ -246,12 +256,10 @@ xfs_swap_extents( goto out_unlock; } - if (VN_CACHED(VFS_I(tip)) != 0) { - error = xfs_flushinval_pages(tip, 0, -1, - FI_REMAPF_LOCKED); - if (error) - goto out_unlock; - } + error = -filemap_write_and_wait(VFS_I(tip)->i_mapping); + if (error) + goto out_unlock; + truncate_pagecache_range(VFS_I(tip), 0, -1); /* Verify O_DIRECT for ftmp */ if (VN_CACHED(VFS_I(tip)) != 0) { @@ -315,8 +323,7 @@ xfs_swap_extents( * are safe. We don't really care if non-io related * fields change. */ - - xfs_tosspages(ip, 0, -1, FI_REMAPF); + truncate_pagecache_range(VFS_I(ip), 0, -1); tp = xfs_trans_alloc(mp, XFS_TRANS_SWAPEXT); if ((error = xfs_trans_reserve(tp, 0, |