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-rw-r--r--fs/nfs/direct.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 38678d9a5cc4..4b1d08f56aba 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -166,8 +166,11 @@ nfs_direct_select_verf(struct nfs_direct_req *dreq,
struct nfs_writeverf *verfp = &dreq->verf;
#ifdef CONFIG_NFS_V4_1
- if (ds_clp) {
- /* pNFS is in use, use the DS verf */
+ /*
+ * pNFS is in use, use the DS verf except commit_through_mds is set
+ * for layout segment where nbuckets is zero.
+ */
+ if (ds_clp && dreq->ds_cinfo.nbuckets > 0) {
if (commit_idx >= 0 && commit_idx < dreq->ds_cinfo.nbuckets)
verfp = &dreq->ds_cinfo.buckets[commit_idx].direct_verf;
else