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authorAndy Adamson <andros@netapp.com>2011-11-09 22:58:21 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-01-05 19:42:40 +0400
commitaacd5537270a752fe12a9914a207284fc2341c6d (patch)
tree9bcfab2c3369096d458c68f7782d90686601e536 /fs/nfs
parent61f2e5106582d02f30b6807e3f9c07463c572ccb (diff)
downloadlinux-aacd5537270a752fe12a9914a207284fc2341c6d.tar.xz
NFSv4.1: cleanup init and reset of session slot tables
We are either initializing or resetting a session. Initialize or reset the session slot tables accordingly. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c59
1 files changed, 22 insertions, 37 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d9f4d78c3413..a64aa56e140a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5021,23 +5021,6 @@ out:
return ret;
}
-/*
- * 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, 1);
- if (status)
- return status;
-
- status = nfs4_reset_slot_table(&session->bc_slot_table,
- session->bc_attrs.max_reqs, 0);
- return status;
-}
-
/* Destroy the slot table */
static void nfs4_destroy_slot_tables(struct nfs4_session *session)
{
@@ -5083,29 +5066,35 @@ out:
}
/*
- * Initialize the forechannel and backchannel tables
+ * Initialize or reset the forechannel and backchannel tables
*/
-static int nfs4_init_slot_tables(struct nfs4_session *session)
+static int nfs4_setup_session_slot_tables(struct nfs4_session *ses)
{
struct nfs4_slot_table *tbl;
- int status = 0;
+ int status;
- tbl = &session->fc_slot_table;
+ dprintk("--> %s\n", __func__);
+ /* Fore channel */
+ tbl = &ses->fc_slot_table;
if (tbl->slots == NULL) {
- status = nfs4_init_slot_table(tbl,
- session->fc_attrs.max_reqs, 1);
+ status = nfs4_init_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
+ if (status) /* -ENOMEM */
+ return status;
+ } else {
+ status = nfs4_reset_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
if (status)
return status;
}
-
- tbl = &session->bc_slot_table;
+ /* Back channel */
+ tbl = &ses->bc_slot_table;
if (tbl->slots == NULL) {
- status = nfs4_init_slot_table(tbl,
- session->bc_attrs.max_reqs, 0);
+ status = nfs4_init_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
if (status)
- nfs4_destroy_slot_tables(session);
- }
-
+ /* Fore and back channel share a connection so get
+ * both slot tables or neither */
+ nfs4_destroy_slot_tables(ses);
+ } else
+ status = nfs4_reset_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
return status;
}
@@ -5293,13 +5282,9 @@ int nfs4_proc_create_session(struct nfs_client *clp)
if (status)
goto out;
- /* Init and reset the fore channel */
- status = nfs4_init_slot_tables(session);
- dprintk("slot table initialization returned %d\n", status);
- if (status)
- goto out;
- status = nfs4_reset_slot_tables(session);
- dprintk("slot table reset returned %d\n", status);
+ /* Init or reset the session slot tables */
+ status = nfs4_setup_session_slot_tables(session);
+ dprintk("slot table setup returned %d\n", status);
if (status)
goto out;