diff options
| author | Trond Myklebust | 2014-07-29 21:34:22 -0400 |
|---|---|---|
| committer | J. Bruce Fields | 2014-07-31 14:20:15 -0400 |
| commit | 0667b1e9d8a7c0a315da8bd7f454ef4361ceb3ac (patch) | |
| tree | 975536a02bbc1bf1223ad14baca8c6fd9caf270d | |
| parent | 2585fc79584684666b3d107179e43484dfb4da13 (diff) | |
nfsd: Add reference counting to nfs4_preprocess_confirmed_seqid_op
Ensure that all the callers put the open stateid after use.
Necessary step toward client_mutex removal.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 8e18ca49555f..a777666044f1 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4405,6 +4405,8 @@ static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cs NFS4_OPEN_STID, stpp, nn); if (status) return status; + /* FIXME: move into nfs4_preprocess_seqid_op */ + atomic_inc(&(*stpp)->st_stid.sc_count); oo = openowner((*stpp)->st_stateowner); if (!(oo->oo_flags & NFS4_OO_CONFIRMED)) return nfserr_bad_stateid; @@ -4509,12 +4511,12 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, if (!test_access(od->od_share_access, stp)) { dprintk("NFSD: access not a subset of current bitmap: 0x%hhx, input access=%08x\n", stp->st_access_bmap, od->od_share_access); - goto out; + goto put_stateid; } if (!test_deny(od->od_share_deny, stp)) { dprintk("NFSD: deny not a subset of current bitmap: 0x%hhx, input deny=%08x\n", stp->st_deny_bmap, od->od_share_deny); - goto out; + goto put_stateid; } nfs4_stateid_downgrade(stp, od->od_share_access); @@ -4523,6 +4525,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, update_stateid(&stp->st_stid.sc_stateid); memcpy(&od->od_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); status = nfs_ok; +put_stateid: + nfs4_put_stid(&stp->st_stid); out: nfsd4_bump_seqid(cstate, status); if (!cstate->replay_owner) @@ -4883,6 +4887,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfs4_openowner *open_sop = NULL; struct nfs4_lockowner *lock_sop = NULL; struct nfs4_ol_stateid *lock_stp = NULL; + struct nfs4_ol_stateid *open_stp = NULL; struct nfs4_file *fp; struct file *filp = NULL; struct file_lock *file_lock = NULL; @@ -4910,8 +4915,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); if (lock->lk_is_new) { - struct nfs4_ol_stateid *open_stp = NULL; - if (nfsd4_has_session(cstate)) /* See rfc 5661 18.10.3: given clientid is ignored: */ memcpy(&lock->v.new.clientid, @@ -5039,6 +5042,8 @@ out: fput(filp); if (lock_stp) nfs4_put_stid(&lock_stp->st_stid); + if (open_stp) + nfs4_put_stid(&open_stp->st_stid); if (status && new_state) release_lock_stateid(lock_stp); nfsd4_bump_seqid(cstate, status); |