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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-10-27 18:25:04 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2016-12-01 17:21:37 -0500
commit3ecefc9295991eaaad4c67915c6384e5d18cc632 (patch)
tree7b0fbf0bd5058b772b5b80626eef357f7f31f950 /fs
parent3947b74d0f9d0738335d8b2bca2bde057f9141be (diff)
downloadlinux-3ecefc9295991eaaad4c67915c6384e5d18cc632.tar.bz2
NFSv4: Don't request close-to-open attribute when holding a delegation
If holding a delegation, we do not need to ask the server to return close-to-open cache consistency attributes as part of the CLOSE compound. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4proc.c10
-rw-r--r--fs/nfs/nfs4xdr.c3
2 files changed, 10 insertions, 3 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index c0628f78ed98..917a6db5c84f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3156,8 +3156,15 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
goto out_wait;
}
- if (calldata->arg.fmode == 0)
+ if (calldata->arg.fmode == 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
+
+ /* Close-to-open cache consistency revalidation */
+ if (!nfs4_have_delegation(inode, FMODE_READ))
+ calldata->arg.bitmask = NFS_SERVER(inode)->cache_consistency_bitmask;
+ else
+ calldata->arg.bitmask = NULL;
+ }
if (calldata->roc)
pnfs_roc_get_barrier(inode, &calldata->roc_barrier);
@@ -3240,7 +3247,6 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
if (IS_ERR(calldata->arg.seqid))
goto out_free_calldata;
calldata->arg.fmode = 0;
- calldata->arg.bitmask = server->cache_consistency_bitmask;
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
calldata->res.server = server;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index c37473721230..b54931503872 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2248,7 +2248,8 @@ static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
encode_close(xdr, args, &hdr);
- encode_getfattr(xdr, args->bitmask, &hdr);
+ if (args->bitmask != NULL)
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}