[12/45] xfs: skip always_cow inodes in xfs_reflink_trim_around_shared

Commit Message

Christoph Hellwig Feb. 18, 2025, 8:10 a.m. UTC

xfs_reflink_trim_around_shared tries to find shared blocks in the
refcount btree.  Always_cow inodes don't have that tree, so don't
bother.

For the existing always_cow code this is a minor optimization.  For
the upcoming zoned code that can do COW without the rtreflink code it
avoids triggering a NULL pointer dereference.

Signed-off-by: Christoph Hellwig <[e-mail]>
Reviewed-by: "Darrick J. Wong" <[e-mail]>
---
 fs/xfs/xfs_reflink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index b21cb0d36dd4..fd65e5d7994a 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -235,7 +235,7 @@  xfs_reflink_trim_around_shared(
 	int			error = 0;
 
 	/* Holes, unwritten, and delalloc extents cannot be shared */
-	if (!xfs_is_cow_inode(ip) || !xfs_bmap_is_written_extent(irec)) {
+	if (!xfs_is_reflink_inode(ip) || !xfs_bmap_is_written_extent(irec)) {
 		*shared = false;
 		return 0;
 	}