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Diffstat (limited to 'fs/nfs/pnfs.c')
-rw-r--r--fs/nfs/pnfs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 683e09be25ad..6b888e9ff394 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2051,8 +2051,10 @@ static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo)
static void nfs_layoutget_end(struct pnfs_layout_hdr *lo)
{
if (atomic_dec_and_test(&lo->plh_outstanding) &&
- test_and_clear_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags))
+ test_and_clear_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags)) {
+ smp_mb__after_atomic();
wake_up_bit(&lo->plh_flags, NFS_LAYOUT_DRAIN);
+ }
}
static bool pnfs_is_first_layoutget(struct pnfs_layout_hdr *lo)