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authorWeston Andros Adamson <dros@netapp.com>2012-10-02 14:49:52 -0700
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-10-02 14:56:19 -0700
commitae2bb03236fc978bdf673c19d39832500793b83c (patch)
treee88215f4a387fdcc6ef9183f61d12477b5b7e2bd /fs/nfs
parentbbd3a8eee82a2a6f4aa1cce60ccb014f25e5c560 (diff)
downloadlinux-ae2bb03236fc978bdf673c19d39832500793b83c.tar.bz2
NFSv4: don't put ACCESS in OPEN compound if O_EXCL
Don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS will return permission denied for all bits until close. Fixes a regression due to commit 6168f62c (NFSv4: Add ACCESS operation to OPEN compound) Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c12
-rw-r--r--fs/nfs/nfs4xdr.c12
2 files changed, 17 insertions, 7 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ccada6856f0d..21cfac7c2ff8 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -862,9 +862,15 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
p->o_arg.fh = NFS_FH(dir);
p->o_arg.open_flags = flags;
p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
- /* ask server to check for all possible rights as results are cached */
- p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY |
- NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE;
+ /* don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS
+ * will return permission denied for all bits until close */
+ if (!(flags & O_EXCL)) {
+ /* ask server to check for all possible rights as results
+ * are cached */
+ p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY |
+ NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE;
+ p->o_res.access_request = p->o_arg.access;
+ }
p->o_arg.clientid = server->nfs_client->cl_clientid;
p->o_arg.id.create_time = ktime_to_ns(sp->so_seqid.create_time);
p->o_arg.id.uniquifier = sp->so_seqid.owner_id;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 657483c34e28..0d6030510fe2 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2224,7 +2224,8 @@ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
encode_putfh(xdr, args->fh, &hdr);
encode_open(xdr, args, &hdr);
encode_getfh(xdr, &hdr);
- encode_access(xdr, args->access, &hdr);
+ if (args->access)
+ encode_access(xdr, args->access, &hdr);
encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
encode_nops(&hdr);
}
@@ -2261,7 +2262,8 @@ static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
encode_open(xdr, args, &hdr);
- encode_access(xdr, args->access, &hdr);
+ if (args->access)
+ encode_access(xdr, args->access, &hdr);
encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
}
@@ -6239,7 +6241,8 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
status = decode_getfh(xdr, &res->fh);
if (status)
goto out;
- decode_access(xdr, &res->access_supported, &res->access_result);
+ if (res->access_request)
+ decode_access(xdr, &res->access_supported, &res->access_result);
decode_getfattr(xdr, res->f_attr, res->server);
out:
return status;
@@ -6288,7 +6291,8 @@ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
status = decode_open(xdr, res);
if (status)
goto out;
- decode_access(xdr, &res->access_supported, &res->access_result);
+ if (res->access_request)
+ decode_access(xdr, &res->access_supported, &res->access_result);
decode_getfattr(xdr, res->f_attr, res->server);
out:
return status;