From 30fa529e3b2e6f1da277ef8525e4ce7979c57c57 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 24 Oct 2019 22:25:38 -0700 Subject: xfs: add a xfs_inode_buftarg helper Add a new xfs_inode_buftarg helper that gets the data I/O buftarg for a given inode. Replace the existing xfs_find_bdev_for_inode and xfs_find_daxdev_for_inode helpers with this new general one and cleanup some of the callers. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/xfs_aops.c | 34 +++++----------------------------- fs/xfs/xfs_aops.h | 3 --- fs/xfs/xfs_bmap_util.c | 15 ++++++++------- fs/xfs/xfs_file.c | 14 +++++++------- fs/xfs/xfs_inode.h | 7 +++++++ fs/xfs/xfs_ioctl.c | 7 +++---- fs/xfs/xfs_iomap.c | 11 +++++++---- fs/xfs/xfs_iops.c | 2 +- 8 files changed, 38 insertions(+), 55 deletions(-) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 5d3503f6412a..3a688eb5c5ae 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -30,32 +30,6 @@ XFS_WPC(struct iomap_writepage_ctx *ctx) return container_of(ctx, struct xfs_writepage_ctx, ctx); } -struct block_device * -xfs_find_bdev_for_inode( - struct inode *inode) -{ - struct xfs_inode *ip = XFS_I(inode); - struct xfs_mount *mp = ip->i_mount; - - if (XFS_IS_REALTIME_INODE(ip)) - return mp->m_rtdev_targp->bt_bdev; - else - return mp->m_ddev_targp->bt_bdev; -} - -struct dax_device * -xfs_find_daxdev_for_inode( - struct inode *inode) -{ - struct xfs_inode *ip = XFS_I(inode); - struct xfs_mount *mp = ip->i_mount; - - if (XFS_IS_REALTIME_INODE(ip)) - return mp->m_rtdev_targp->bt_daxdev; - else - return mp->m_ddev_targp->bt_daxdev; -} - /* * Fast and loose check if this write could update the on-disk inode size. */ @@ -609,9 +583,11 @@ xfs_dax_writepages( struct address_space *mapping, struct writeback_control *wbc) { - xfs_iflags_clear(XFS_I(mapping->host), XFS_ITRUNCATED); + struct xfs_inode *ip = XFS_I(mapping->host); + + xfs_iflags_clear(ip, XFS_ITRUNCATED); return dax_writeback_mapping_range(mapping, - xfs_find_bdev_for_inode(mapping->host), wbc); + xfs_inode_buftarg(ip)->bt_bdev, wbc); } STATIC sector_t @@ -661,7 +637,7 @@ xfs_iomap_swapfile_activate( struct file *swap_file, sector_t *span) { - sis->bdev = xfs_find_bdev_for_inode(file_inode(swap_file)); + sis->bdev = xfs_inode_buftarg(XFS_I(file_inode(swap_file)))->bt_bdev; return iomap_swapfile_activate(sis, swap_file, span, &xfs_read_iomap_ops); } diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h index 687b11f34fa2..e0bd68419764 100644 --- a/fs/xfs/xfs_aops.h +++ b/fs/xfs/xfs_aops.h @@ -11,7 +11,4 @@ extern const struct address_space_operations xfs_dax_aops; int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size); -extern struct block_device *xfs_find_bdev_for_inode(struct inode *); -extern struct dax_device *xfs_find_daxdev_for_inode(struct inode *); - #endif /* __XFS_AOPS_H__ */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 99bf372ed551..ba53201dcaf6 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -53,15 +53,16 @@ xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb) */ int xfs_zero_extent( - struct xfs_inode *ip, - xfs_fsblock_t start_fsb, - xfs_off_t count_fsb) + struct xfs_inode *ip, + xfs_fsblock_t start_fsb, + xfs_off_t count_fsb) { - struct xfs_mount *mp = ip->i_mount; - xfs_daddr_t sector = xfs_fsb_to_db(ip, start_fsb); - sector_t block = XFS_BB_TO_FSBT(mp, sector); + struct xfs_mount *mp = ip->i_mount; + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + xfs_daddr_t sector = xfs_fsb_to_db(ip, start_fsb); + sector_t block = XFS_BB_TO_FSBT(mp, sector); - return blkdev_issue_zeroout(xfs_find_bdev_for_inode(VFS_I(ip)), + return blkdev_issue_zeroout(target->bt_bdev, block << (mp->m_super->s_blocksize_bits - 9), count_fsb << (mp->m_super->s_blocksize_bits - 9), GFP_NOFS, 0); diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 24659667d5cb..ee4ebb7904f6 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1229,22 +1229,22 @@ static const struct vm_operations_struct xfs_file_vm_ops = { STATIC int xfs_file_mmap( - struct file *filp, - struct vm_area_struct *vma) + struct file *file, + struct vm_area_struct *vma) { - struct dax_device *dax_dev; + struct inode *inode = file_inode(file); + struct xfs_buftarg *target = xfs_inode_buftarg(XFS_I(inode)); - dax_dev = xfs_find_daxdev_for_inode(file_inode(filp)); /* * We don't support synchronous mappings for non-DAX files and * for DAX files if underneath dax_device is not synchronous. */ - if (!daxdev_mapping_supported(vma, dax_dev)) + if (!daxdev_mapping_supported(vma, target->bt_daxdev)) return -EOPNOTSUPP; - file_accessed(filp); + file_accessed(file); vma->vm_ops = &xfs_file_vm_ops; - if (IS_DAX(file_inode(filp))) + if (IS_DAX(inode)) vma->vm_flags |= VM_HUGEPAGE; return 0; } diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 558173f95a03..bcfb35a9c5ca 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -219,6 +219,13 @@ static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip) return ip->i_cowfp && ip->i_cowfp->if_bytes; } +/* + * Return the buftarg used for data allocations on a given inode. + */ +#define xfs_inode_buftarg(ip) \ + (XFS_IS_REALTIME_INODE(ip) ? \ + (ip)->i_mount->m_rtdev_targp : (ip)->i_mount->m_ddev_targp) + /* * In-core inode flags. */ diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index d58f0d6a699e..b7b5c17131cd 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1311,10 +1311,9 @@ xfs_ioctl_setattr_dax_invalidate( * have to check the device for dax support or flush pagecache. */ if (fa->fsx_xflags & FS_XFLAG_DAX) { - if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) - return -EINVAL; - if (!bdev_dax_supported(xfs_find_bdev_for_inode(VFS_I(ip)), - sb->s_blocksize)) + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + + if (!bdev_dax_supported(target->bt_bdev, sb->s_blocksize)) return -EINVAL; } diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index e8fb500e1880..8317b936d3c1 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -57,6 +57,7 @@ xfs_bmbt_to_iomap( u16 flags) { struct xfs_mount *mp = ip->i_mount; + struct xfs_buftarg *target = xfs_inode_buftarg(ip); if (unlikely(!xfs_valid_startblock(ip, imap->br_startblock))) return xfs_alert_fsblock_zero(ip, imap); @@ -77,8 +78,8 @@ xfs_bmbt_to_iomap( } iomap->offset = XFS_FSB_TO_B(mp, imap->br_startoff); iomap->length = XFS_FSB_TO_B(mp, imap->br_blockcount); - iomap->bdev = xfs_find_bdev_for_inode(VFS_I(ip)); - iomap->dax_dev = xfs_find_daxdev_for_inode(VFS_I(ip)); + iomap->bdev = target->bt_bdev; + iomap->dax_dev = target->bt_daxdev; iomap->flags = flags; if (xfs_ipincount(ip) && @@ -94,12 +95,14 @@ xfs_hole_to_iomap( xfs_fileoff_t offset_fsb, xfs_fileoff_t end_fsb) { + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + iomap->addr = IOMAP_NULL_ADDR; iomap->type = IOMAP_HOLE; iomap->offset = XFS_FSB_TO_B(ip->i_mount, offset_fsb); iomap->length = XFS_FSB_TO_B(ip->i_mount, end_fsb - offset_fsb); - iomap->bdev = xfs_find_bdev_for_inode(VFS_I(ip)); - iomap->dax_dev = xfs_find_daxdev_for_inode(VFS_I(ip)); + iomap->bdev = target->bt_bdev; + iomap->dax_dev = target->bt_daxdev; } static inline xfs_fileoff_t diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 329a34af8e79..404f2dd58698 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -1227,7 +1227,7 @@ xfs_inode_supports_dax( return false; /* Device has to support DAX too. */ - return xfs_find_daxdev_for_inode(VFS_I(ip)) != NULL; + return xfs_inode_buftarg(ip)->bt_daxdev != NULL; } STATIC void -- cgit v1.2.3