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NFSv4.2: LAYOUTSTATS is optional to implement

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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>
This commit is contained in:
Trond Myklebust
2015-06-27 11:45:46 -04:00
parent da2e812751
commit 6c5a0d8915
4 changed files with 14 additions and 3 deletions
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10
fs/nfs/nfs42proc.c
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@@ -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