diff options
| author | Andy Adamson <andros@netapp.com> | 2010-01-14 17:45:07 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-02-10 08:30:58 -0500 |
| commit | b2f28bd78354b9bbcd178bf6bbf6b2277cd9b761 (patch) | |
| tree | 2f323c6f7c4b05252711dffdbe54e478806841f0 /fs/nfs/callback_proc.c | |
| parent | e95e60daee44fade63f32429ddcf1c2012a95632 (diff) | |
nfs41: prepare for back channel drc
Make all cb_sequence arguments available to verify_seqid which will make
replay decisions.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/callback_proc.c')
| -rw-r--r-- | fs/nfs/callback_proc.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 49c4b548b4d0..3d7edd65577b 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -153,34 +153,34 @@ int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation, const n * a single outstanding callback request at a time. */ static int -validate_seqid(struct nfs4_slot_table *tbl, u32 slotid, u32 seqid) +validate_seqid(struct nfs4_slot_table *tbl, struct cb_sequenceargs * args) { struct nfs4_slot *slot; dprintk("%s enter. slotid %d seqid %d\n", - __func__, slotid, seqid); + __func__, args->csa_slotid, args->csa_sequenceid); - if (slotid > NFS41_BC_MAX_CALLBACKS) + if (args->csa_slotid > NFS41_BC_MAX_CALLBACKS) return htonl(NFS4ERR_BADSLOT); - slot = tbl->slots + slotid; + slot = tbl->slots + args->csa_slotid; dprintk("%s slot table seqid: %d\n", __func__, slot->seq_nr); /* Normal */ - if (likely(seqid == slot->seq_nr + 1)) { + if (likely(args->csa_sequenceid == slot->seq_nr + 1)) { slot->seq_nr++; return htonl(NFS4_OK); } /* Replay */ - if (seqid == slot->seq_nr) { + if (args->csa_sequenceid == slot->seq_nr) { dprintk("%s seqid %d is a replay - no DRC available\n", - __func__, seqid); + __func__, args->csa_sequenceid); return htonl(NFS4_OK); } /* Wraparound */ - if (seqid == 1 && (slot->seq_nr + 1) == 0) { + if (args->csa_sequenceid == 1 && (slot->seq_nr + 1) == 0) { slot->seq_nr = 1; return htonl(NFS4_OK); } @@ -291,8 +291,7 @@ unsigned nfs4_callback_sequence(struct cb_sequenceargs *args, if (clp == NULL) goto out; - status = validate_seqid(&clp->cl_session->bc_slot_table, - args->csa_slotid, args->csa_sequenceid); + status = validate_seqid(&clp->cl_session->bc_slot_table, args); if (status) goto out_putclient; |