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| author |   Fred Isaman <fred.isaman@gmail.com> | 2016-10-04 15:26:41 -0400 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-05-31 15:03:11 -0400 |
| commit | 6e01260ceeca299b82d466660935534c5c909d54 (patch) | |
| tree | 16852b84a1595fbb2bd4b64cbdc085d3b91cd16c /fs/nfs | |
| parent | pnfs: Add LAYOUTGET to OPEN of an existing file (diff) | |
| download | linux-dev-6e01260ceeca299b82d466660935534c5c909d54.tar.xz linux-dev-6e01260ceeca299b82d466660935534c5c909d54.zip | |
pnfs: Stop attempting LAYOUTGET on OPEN on failure
Signed-off-by: Fred Isaman <fred.isaman@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 4 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 19 |
2 files changed, 21 insertions, 2 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 0e6db190a874..05454cbc473d 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -9465,7 +9465,8 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = { | NFS_CAP_ATOMIC_OPEN | NFS_CAP_POSIX_LOCK | NFS_CAP_STATEID_NFSV41 - | NFS_CAP_ATOMIC_OPEN_V1, + | NFS_CAP_ATOMIC_OPEN_V1 + | NFS_CAP_LGOPEN, .init_client = nfs41_init_client, .shutdown_client = nfs41_shutdown_client, .match_stateid = nfs41_match_stateid, @@ -9490,6 +9491,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { | NFS_CAP_POSIX_LOCK | NFS_CAP_STATEID_NFSV41 | NFS_CAP_ATOMIC_OPEN_V1 + | NFS_CAP_LGOPEN | NFS_CAP_ALLOCATE | NFS_CAP_COPY | NFS_CAP_DEALLOCATE diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index a6fe8132e944..3dfe9fa264a5 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -2088,6 +2088,8 @@ void pnfs_lgopen_prepare(struct nfs4_opendata *data, server->pnfs_curr_ld->flags & PNFS_LAYOUTGET_ON_OPEN)) return; /* Could check on max_ops, but currently hardcoded high enough */ + if (!nfs_server_capable(data->dir->d_inode, NFS_CAP_LGOPEN)) + return; if (data->state) _lgopen_prepare_attached(data, ctx); else @@ -2101,8 +2103,23 @@ void pnfs_parse_lgopen(struct inode *ino, struct nfs4_layoutget *lgp, struct pnfs_layout_segment *lseg; u32 iomode; - if (!lgp || lgp->res.layoutp->len == 0) + if (!lgp) return; + dprintk("%s: entered with status %i\n", __func__, lgp->res.status); + if (lgp->res.status) { + switch (lgp->res.status) { + case -NFS4ERR_DELAY: + case -NFS4ERR_GRACE: + case -NFS4ERR_LAYOUTTRYLATER: + break; + default: + /* FIXME - Any error not listed above permanently + * halts lgopen attempts. + */ + NFS_SERVER(ino)->caps &= ~NFS_CAP_LGOPEN; + } + return; + } if (!lgp->args.inode) { lo = _pnfs_grab_empty_layout(ino, ctx); if (!lo) |