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authorRicardo Labiaga <Ricardo.Labiaga@netapp.com>2009-04-01 09:23:32 -0400
committerBenny Halevy <bhalevy@panasas.com>2009-06-17 14:11:42 -0700
commit050047ce71bcf60867d2af7a9dc965a9c6f15cb8 (patch)
tree75510a0f57ac4b30d42a7d4f892bb7ec565128f7 /fs/nfs/nfs4proc.c
parentb73dafa7ac94ca8387f65c57cb63a7ffac91bf2c (diff)
nfs41: Backchannel: Refactor nfs4_init_slot_table()
Generalize nfs4_init_slot_table() so it can be used to initialize 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>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a7b1d6c228c..c3019ad8589 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4420,23 +4420,22 @@ static int nfs4_reset_slot_tables(struct nfs4_session *session)
/*
* Initialize slot table
*/
-static int nfs4_init_slot_table(struct nfs4_session *session)
+static int nfs4_init_slot_table(struct nfs4_slot_table *tbl,
+ int max_slots, int ivalue)
{
- struct nfs4_slot_table *tbl = &session->fc_slot_table;
- int i, max_slots = session->fc_attrs.max_reqs;
+ int i;
struct nfs4_slot *slot;
int ret = -ENOMEM;
BUG_ON(max_slots > NFS4_MAX_SLOT_TABLE);
- dprintk("--> %s: max_reqs=%u\n", __func__,
- session->fc_attrs.max_reqs);
+ dprintk("--> %s: max_reqs=%u\n", __func__, max_slots);
slot = kcalloc(max_slots, sizeof(struct nfs4_slot), GFP_KERNEL);
if (!slot)
goto out;
for (i = 0; i < max_slots; ++i)
- slot[i].seq_nr = 1;
+ slot[i].seq_nr = ivalue;
ret = 0;
spin_lock(&tbl->slot_tbl_lock);
@@ -4456,11 +4455,24 @@ static int nfs4_init_slot_table(struct nfs4_session *session)
out:
dprintk("<-- %s: return %d\n", __func__, ret);
return ret;
+
out_free:
kfree(slot);
goto out;
}
+/*
+ * Initialize the forechannel and backchannel tables
+ */
+static int nfs4_init_slot_tables(struct nfs4_session *session)
+{
+ int status;
+
+ status = nfs4_init_slot_table(&session->fc_slot_table,
+ session->fc_attrs.max_reqs, 1);
+ return status;
+}
+
/* Destroy the slot table */
static void nfs4_destroy_slot_table(struct nfs4_session *session)
{
@@ -4657,7 +4669,7 @@ int nfs4_proc_create_session(struct nfs_client *clp, int reset)
if (reset)
status = nfs4_reset_slot_tables(session);
else
- status = nfs4_init_slot_table(session);
+ status = nfs4_init_slot_tables(session);
dprintk("fore channel slot table initialization returned %d\n", status);
if (status)
goto out;