1 files changed, 2 insertions, 1 deletions

diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 3282575e2df4..6320aca39f39 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -655,6 +655,7 @@ xfs_iomap_write_allocate(
         unsigned int    *cow_seq)
 {
         xfs_mount_t     *mp = ip->i_mount;
+        struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
         xfs_fileoff_t   offset_fsb, last_block;
         xfs_fileoff_t   end_fsb, map_start_fsb;
         xfs_filblks_t   count_fsb;
@@ -768,7 +769,7 @@ xfs_iomap_write_allocate(
                                 goto error0;
 
                         if (whichfork == XFS_COW_FORK)
-                                *cow_seq = XFS_IFORK_PTR(ip, whichfork)->if_seq;
+                                *cow_seq = READ_ONCE(ifp->if_seq);
                         xfs_iunlock(ip, XFS_ILOCK_EXCL);
                 }