NFSv4.2: LAYOUTSTATS is optional to implement
Make it so, by checking the return value for NFS4ERR_MOTSUPP and
caching the information as a server capability.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 06c74cd..f486b80 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -189,9 +189,15 @@
if (!nfs4_sequence_done(task, &data->res.seq_res))
return;
- /* well, we don't care about errors at all! */
- if (task->tk_status)
+ switch (task->tk_status) {
+ case 0:
+ break;
+ case -ENOTSUPP:
+ case -EOPNOTSUPP:
+ NFS_SERVER(data->inode)->caps &= ~NFS_CAP_LAYOUTSTATS;
+ default:
dprintk("%s server returns %d\n", __func__, task->tk_status);
+ }
}
static void