[PATCH 5/7] xfs: hoist multi-fsb allocation unit detection to a helper

Darrick J. Wong
2024-03-27T01:52:19Z

Replace the open-coded logic to decide if a file has a multi-fsb
allocation unit to a helper to make the code easier to read.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/xfs_bmap_util.c | 4 ++--
fs/xfs/xfs_inode.h | 9 +++++++++
2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 19e11d1da6607..c17b5858fed62 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -542,7 +542,7 @@ xfs_can_free_eofblocks(
* forever.
*/
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_ISIZE(ip));
- if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1)
+ if (xfs_inode_has_bigallocunit(ip))
end_fsb = xfs_rtb_roundup_rtx(mp, end_fsb);
last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
if (last_fsb <= end_fsb)
@@ -843,7 +843,7 @@ xfs_free_file_space(
endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);

/* We can only free complete realtime extents. */
- if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1) {
+ if (xfs_inode_has_bigallocunit(ip)) {
startoffset_fsb = xfs_rtb_roundup_rtx(mp, startoffset_fsb);
endoffset_fsb = xfs_rtb_rounddown_rtx(mp, endoffset_fsb);
}
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index fa3e605901e24..89ba114fdb468 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -311,6 +311,15 @@ static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
return ip->i_diflags2 & XFS_DIFLAG2_NREXT64;
}

+/*
+ * Decide if the file data allocation unit for this file is larger than
+ * a single filesystem block.
+ */
+static inline bool xfs_inode_has_bigallocunit(struct xfs_inode *ip)
+{
+ return XFS_IS_REALTIME_INODE(ip) && ip->i_mount->m_sb.sb_rextsize > 1;
+}
+
/*
* Return the buftarg used for data allocations on a given inode.
*/