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| author | J. Bruce Fields <bfields@redhat.com> | 2011-10-10 17:34:31 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-10-10 18:05:20 -0400 |
| commit | c30e92df30d7d5fe65262fbce5d1b7de675fe34e (patch) | |
| tree | cc7c7bc1a9200de0cc2c123cd204b2fc6c6a3e14 /fs/nfsd | |
| parent | dcbf8c30344dfa01915c34f88318d464e116f004 (diff) | |
| download | linux-c30e92df30d7d5fe65262fbce5d1b7de675fe34e.tar.gz linux-c30e92df30d7d5fe65262fbce5d1b7de675fe34e.tar.bz2 linux-c30e92df30d7d5fe65262fbce5d1b7de675fe34e.zip | |
nfsd4: ignore WANT bits in open downgrade
We don't use WANT bits yet--and sending them can probably trigger a
BUG() further down.
Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
| -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 683885b18ceb..a39a542d8be5 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3574,6 +3574,8 @@ 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(); status = nfs4_preprocess_confirmed_seqid_op(cstate, od->od_seqid, |