diff options
| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2018-03-21 00:03:11 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-04-10 23:06:22 +0300 |
| commit | 8bcbe7d98cffb60efdea40e36171c58dcc2bdd31 (patch) | |
| tree | f5e49f26ba772df80645af54e8139636d4caa857 | |
| parent | 36b3743fef88616f92b49949fe1022f345970258 (diff) | |
| download | linux-8bcbe7d98cffb60efdea40e36171c58dcc2bdd31.tar.xz | |
NFSv4: Don't ask for attributes when ACCESS is protected by a delegation
If we hold a delegation, then the results of the ACCESS call are protected
anyway.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
| -rw-r--r-- | fs/nfs/nfs4proc.c | 13 | ||||
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 6 |
2 files changed, 12 insertions, 7 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e5ad2c186927..924238db5983 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4055,7 +4055,6 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry struct nfs_server *server = NFS_SERVER(inode); struct nfs4_accessargs args = { .fh = NFS_FH(inode), - .bitmask = server->cache_consistency_bitmask, .access = entry->mask, }; struct nfs4_accessres res = { @@ -4069,14 +4068,18 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry }; int status = 0; - res.fattr = nfs_alloc_fattr(); - if (res.fattr == NULL) - return -ENOMEM; + if (!nfs_have_delegated_attributes(inode)) { + res.fattr = nfs_alloc_fattr(); + if (res.fattr == NULL) + return -ENOMEM; + args.bitmask = server->cache_consistency_bitmask; + } status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); if (!status) { nfs_access_set_mask(entry, res.access); - nfs_refresh_inode(inode, res.fattr); + if (res.fattr) + nfs_refresh_inode(inode, res.fattr); } nfs_free_fattr(res.fattr); return status; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 79f1774b9d68..51264f5d9d2a 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -2102,7 +2102,8 @@ static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_access(xdr, args->access, &hdr); - encode_getfattr(xdr, args->bitmask, &hdr); + if (args->bitmask) + encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } @@ -6236,7 +6237,8 @@ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, status = decode_access(xdr, &res->supported, &res->access); if (status != 0) goto out; - decode_getfattr(xdr, res->fattr, res->server); + if (res->fattr) + decode_getfattr(xdr, res->fattr, res->server); out: return status; } |