nfs41: Backchannel: Refactor nfs4_reset_slot_table()
Generalize nfs4_reset_slot_table() so it can be used to reset the
backchannel slot table in addition to the forechannel slot table.
Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5da939d..a7b1d6c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4370,19 +4370,21 @@
return status;
}
-/* Reset a slot table */
-static int nfs4_reset_slot_table(struct nfs4_session *session)
+/*
+ * Reset a slot table
+ */
+static int nfs4_reset_slot_table(struct nfs4_slot_table *tbl, int max_slots,
+ int old_max_slots, int ivalue)
{
- struct nfs4_slot_table *tbl = &session->fc_slot_table;
- int i, max_slots = session->fc_attrs.max_reqs;
- int old_max_slots = session->fc_slot_table.max_slots;
+ int i;
int ret = 0;
- dprintk("--> %s: max_reqs=%u, tbl %p\n", __func__,
- session->fc_attrs.max_reqs, tbl);
+ dprintk("--> %s: max_reqs=%u, tbl %p\n", __func__, max_slots, tbl);
- /* Until we have dynamic slot table adjustment, insist
- * upon the same slot table size */
+ /*
+ * Until we have dynamic slot table adjustment, insist
+ * upon the same slot table size
+ */
if (max_slots != old_max_slots) {
dprintk("%s reset slot table does't match old\n",
__func__);
@@ -4391,7 +4393,7 @@
}
spin_lock(&tbl->slot_tbl_lock);
for (i = 0; i < max_slots; ++i)
- tbl->slots[i].seq_nr = 1;
+ tbl->slots[i].seq_nr = ivalue;
tbl->highest_used_slotid = -1;
spin_unlock(&tbl->slot_tbl_lock);
dprintk("%s: tbl=%p slots=%p max_slots=%d\n", __func__,
@@ -4402,6 +4404,20 @@
}
/*
+ * Reset the forechannel and backchannel slot tables
+ */
+static int nfs4_reset_slot_tables(struct nfs4_session *session)
+{
+ int status;
+
+ status = nfs4_reset_slot_table(&session->fc_slot_table,
+ session->fc_attrs.max_reqs,
+ session->fc_slot_table.max_slots,
+ 1);
+ return status;
+}
+
+/*
* Initialize slot table
*/
static int nfs4_init_slot_table(struct nfs4_session *session)
@@ -4639,7 +4655,7 @@
/* Init or reset the fore channel */
if (reset)
- status = nfs4_reset_slot_table(session);
+ status = nfs4_reset_slot_tables(session);
else
status = nfs4_init_slot_table(session);
dprintk("fore channel slot table initialization returned %d\n", status);