rds/ib: use system_wq instead of rds_ib_fmr_wq

With cmwq, there's no reason to use dedicated rds_ib_fmr_wq - it's not
in the memory reclaim path and the maximum number of concurrent work
items is bound by the number of devices.  Drop it and use system_wq
instead.  This rds_ib_fmr_init/exit() noops.  Both removed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andy Grover <andy.grover@oracle.com>

1 files changed, 1 insertions, 8 deletions

diff --git a/net/rds/ib.c b/net/rds/ib.c
index 4123967d4d65..cce19f95c624 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -364,7 +364,6 @@ void rds_ib_exit(void)
         rds_ib_sysctl_exit();
         rds_ib_recv_exit();
         rds_trans_unregister(&rds_ib_transport);
-        rds_ib_fmr_exit();
 }
 
 struct rds_transport rds_ib_transport = {
@@ -400,13 +399,9 @@ int rds_ib_init(void)
 
         INIT_LIST_HEAD(&rds_ib_devices);
 
-        ret = rds_ib_fmr_init();
-        if (ret)
-                goto out;
-
         ret = ib_register_client(&rds_ib_client);
         if (ret)
-                goto out_fmr_exit;
+                goto out;
 
         ret = rds_ib_sysctl_init();
         if (ret)
@@ -430,8 +425,6 @@ out_sysctl:
         rds_ib_sysctl_exit();
 out_ibreg:
         rds_ib_unregister_client();
-out_fmr_exit:
-        rds_ib_fmr_exit();
 out:
         return ret;
 }