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| author | J. Bruce Fields <bfields@citi.umich.edu> | 2010-04-21 12:27:19 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2010-04-22 11:35:14 -0400 |
| commit | 5771635592267758e7dc5647f2a0088aa6244159 (patch) | |
| tree | 71ffa3a85fe311d5eef591ba69e0bbe7d0b17edc /fs/nfsd/nfs4state.c | |
| parent | 4b21d0defcc9680da8a694e92d5fe8eb668c2c0b (diff) | |
| download | linux-5771635592267758e7dc5647f2a0088aa6244159.tar.gz linux-5771635592267758e7dc5647f2a0088aa6244159.tar.bz2 linux-5771635592267758e7dc5647f2a0088aa6244159.zip | |
nfsd4: complete enforcement of 4.1 op ordering
Enforce the rules about compound op ordering.
Motivated by implementing RECLAIM_COMPLETE, for which the client is
implicit in the current session, so it is important to ensure a
succesful SEQUENCE proceeds the RECLAIM_COMPLETE.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 4300d9ffe95f..bba9fff49cfe 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1343,6 +1343,14 @@ out: return status; } +static bool nfsd4_last_compound_op(struct svc_rqst *rqstp) +{ + struct nfsd4_compoundres *resp = rqstp->rq_resp; + struct nfsd4_compoundargs *argp = rqstp->rq_argp; + + return argp->opcnt == resp->opcnt; +} + __be32 nfsd4_destroy_session(struct svc_rqst *r, struct nfsd4_compound_state *cstate, @@ -1358,6 +1366,11 @@ nfsd4_destroy_session(struct svc_rqst *r, * - Do we need to clear any callback info from previous session? */ + if (!memcmp(&sessionid->sessionid, &cstate->session->se_sessionid, + sizeof(struct nfs4_sessionid))) { + if (!nfsd4_last_compound_op(r)) + return nfserr_not_only_op; + } dump_sessionid(__func__, &sessionid->sessionid); spin_lock(&sessionid_lock); ses = find_in_sessionid_hashtbl(&sessionid->sessionid); |