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| author | J. Bruce Fields <bfields@redhat.com> | 2011-10-10 17:34:31 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:35:59 -0800 |
| commit | 0dc8985b7f2da02180135396871d396f33a39b43 (patch) | |
| tree | 8dc0f90279eaa04fd2b64a540b6fbd12a7d29ffc | |
| parent | 279b483174560147e9f56f79e9b1fd3bd4fc8f40 (diff) | |
| download | lwn-0dc8985b7f2da02180135396871d396f33a39b43.tar.gz lwn-0dc8985b7f2da02180135396871d396f33a39b43.zip | |
nfsd4: ignore WANT bits in open downgrade
commit c30e92df30d7d5fe65262fbce5d1b7de675fe34e upstream.
We don't use WANT bits yet--and sending them can probably trigger a
BUG() further down.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 3d893645cc69..ecd8152965ee 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3421,6 +3421,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, if (!access_valid(od->od_share_access, cstate->minorversion) || !deny_valid(od->od_share_deny)) return nfserr_inval; + /* We don't yet support WANT bits: */ + od->od_share_access &= NFS4_SHARE_ACCESS_MASK; nfs4_lock_state(); if ((status = nfs4_preprocess_seqid_op(cstate, |