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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-06-27 18:45:46 +0300
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-06-27 18:48:58 +0300
commit6c5a0d891543873aefc3aaf846c1e7afe0982ff9 (patch)
tree67c0fa7f5c11a4288041a60280171f9c53d1f2ea /fs/nfs/nfs42proc.c
parentda2e8127510525eb4bce0fe34aff06192e042c8f (diff)
downloadlinux-6c5a0d891543873aefc3aaf846c1e7afe0982ff9.tar.xz
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>
Diffstat (limited to 'fs/nfs/nfs42proc.c')
-rw-r--r--fs/nfs/nfs42proc.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 06c74cd93875..f486b80f927a 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -189,9 +189,15 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
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