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authorAndy Adamson <andros@netapp.com>2010-01-14 17:45:07 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-02-10 08:30:58 -0500
commitb2f28bd78354b9bbcd178bf6bbf6b2277cd9b761 (patch)
tree2f323c6f7c4b05252711dffdbe54e478806841f0 /fs/nfs/callback_proc.c
parente95e60daee44fade63f32429ddcf1c2012a95632 (diff)
downloadop-kernel-dev-b2f28bd78354b9bbcd178bf6bbf6b2277cd9b761.zip
op-kernel-dev-b2f28bd78354b9bbcd178bf6bbf6b2277cd9b761.tar.gz
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.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 49c4b54..3d7edd6 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;
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