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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-27 11:45:46 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-27 11:48:58 -0400 |
| commit | 6c5a0d891543873aefc3aaf846c1e7afe0982ff9 (patch) | |
| tree | 67c0fa7f5c11a4288041a60280171f9c53d1f2ea /fs | |
| parent | da2e8127510525eb4bce0fe34aff06192e042c8f (diff) | |
| download | linux-stable-6c5a0d891543873aefc3aaf846c1e7afe0982ff9.tar.gz linux-stable-6c5a0d891543873aefc3aaf846c1e7afe0982ff9.tar.bz2 linux-stable-6c5a0d891543873aefc3aaf846c1e7afe0982ff9.zip | |
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')
| -rw-r--r-- | fs/nfs/nfs42proc.c | 10 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 3 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 3 |
3 files changed, 13 insertions, 3 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 diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 643ce3a91b22..8eab42407d39 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8635,7 +8635,8 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { | NFS_CAP_ATOMIC_OPEN_V1 | NFS_CAP_ALLOCATE | NFS_CAP_DEALLOCATE - | NFS_CAP_SEEK, + | NFS_CAP_SEEK + | NFS_CAP_LAYOUTSTATS, .init_client = nfs41_init_client, .shutdown_client = nfs41_shutdown_client, .match_stateid = nfs41_match_stateid, diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 40bacebb5b97..0ba9a02c9566 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -2266,6 +2266,9 @@ pnfs_report_layoutstat(struct inode *inode) if (!pnfs_enabled_sb(server) || !ld->prepare_layoutstats) goto out; + if (!nfs_server_capable(inode, NFS_CAP_LAYOUTSTATS)) + goto out; + if (test_and_set_bit(NFS_INO_LAYOUTSTATS, &nfsi->flags)) goto out; |