diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-06-08 10:58:09 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-06-19 23:18:16 +0100 |
| commit | 5b89f6bc01adb03d54dc90ecead12d86550fa6bb (patch) | |
| tree | cdad8f26041cb50bedd755f869a2e235fe0f89b2 /fs/nfs | |
| parent | 67c94967a36535a3e6c495ceda9b41aee2c448db (diff) | |
NFSv4: Fix unnecessary delegation returns in nfs4_do_open
commit 2d0dbc6ae8a5194aaecb9cfffb9053f38fce8b86 upstream.
While nfs4_do_open() expects the fmode argument to be restricted to
combinations of FMODE_READ and FMODE_WRITE, both nfs4_atomic_open()
and nfs4_proc_create will pass the nfs_open_context->mode,
which contains the full fmode_t.
This patch ensures that nfs4_do_open strips the other fmode_t bits,
fixing a problem in which the nfs4_do_open call would result in an
unnecessary delegation return.
Reported-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a3cae5d645b..8000459b913 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1825,6 +1825,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry, struct nfs4_state *res; int status; + fmode &= FMODE_READ|FMODE_WRITE; do { status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred, &res); if (status == 0) |