xfs: assert that xfs_reflink_allocate_cow is called with XFS_ILOCK_EXCL
authorChristoph Hellwig <hch@lst.de>
Wed, 14 Mar 2018 06:15:31 +0000 (23:15 -0700)
committerDarrick J. Wong <darrick.wong@oracle.com>
Thu, 15 Mar 2018 17:31:38 +0000 (10:31 -0700)
Now that we convert COW preallocations from unwritten to real on every
call this function needs to be called with the ilock held exclusively.

Fortunately we already do that, but update the assert to match.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
fs/xfs/xfs_reflink.c

index d81c4f8..90aac88 100644 (file)
@@ -394,7 +394,7 @@ xfs_reflink_allocate_cow(
 
 retry:
        ASSERT(xfs_is_reflink_inode(ip));
-       ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED));
+       ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
 
        /*
         * Even if the extent is not shared we might have a preallocation for