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authorAndy Adamson <andros@netapp.com>2009-04-01 09:22:17 -0400
committerBenny Halevy <bhalevy@panasas.com>2009-06-17 10:46:41 -0700
commit13615871cdf8e8263626a817c350c6978a6483fe (patch)
tree267069d5067c55d10c2a7b4e02dc5a03243f9967 /fs/nfs/nfs4proc.c
parente2c4ab3ce2ecc527672bd7e29a594c50d3ec0477 (diff)
nfs41: nfs41_sequence_free_slot
[from nfs41: separate free slot from sequence done] Don't free the slot until after all rpc_restart_calls have completed. Session reset will require more work. As noted by Trond, since we're using rpc_wake_up_next rather than rpc_wake_up() we must always wake up the next task in the queue either by going through nfs4_free_slot, or just calling rpc_wake_up_next if no slot is to be freed. [nfs41: sequence res use slotid] [nfs41: remove SEQ4_STATUS_USE_TK_STATUS] [got rid of nfs4_sequence_res.sr_session, use nfs_client.cl_session instead] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: rpc_wake_up_next if sessions slot was not consumed.] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: nfs4_sequence_free_slot use nfs_client for data server] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b6308f6740e..861b103c9e3 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -309,6 +309,27 @@ nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
free_slotid, tbl->highest_used_slotid);
}
+void nfs41_sequence_free_slot(const struct nfs_client *clp,
+ struct nfs4_sequence_res *res)
+{
+ struct nfs4_slot_table *tbl;
+
+ if (!nfs4_has_session(clp)) {
+ dprintk("%s: No session\n", __func__);
+ return;
+ }
+ tbl = &clp->cl_session->fc_slot_table;
+ if (res->sr_slotid == NFS4_MAX_SLOT_TABLE) {
+ dprintk("%s: No slot\n", __func__);
+ /* just wake up the next guy waiting since
+ * we may have not consumed a slot after all */
+ rpc_wake_up_next(&tbl->slot_tbl_waitq);
+ return;
+ }
+ nfs4_free_slot(tbl, res->sr_slotid);
+ res->sr_slotid = NFS4_MAX_SLOT_TABLE;
+}
+
/*
* nfs4_find_slot - efficiently look for a free slot
*