PCI: pciehp: Handle push button event asynchronously

Use non-ordered workqueue for attention button events.

Attention button events on each slot can be handled asynchronously. So
we should use non-ordered workqueue. This patch also removes ordered
workqueue in pciehp as a result.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 0 insertions, 9 deletions

diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index a13ad1308adb..b8c99d35ac97 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -43,7 +43,6 @@ int pciehp_poll_mode;
 int pciehp_poll_time;
 int pciehp_force;
 struct workqueue_struct *pciehp_wq;
-struct workqueue_struct *pciehp_ordered_wq;
 
 #define DRIVER_VERSION  "0.4"
 #define DRIVER_AUTHOR   "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -345,18 +344,11 @@ static int __init pcied_init(void)
         if (!pciehp_wq)
                 return -ENOMEM;
 
-        pciehp_ordered_wq = alloc_ordered_workqueue("pciehp_ordered", 0);
-        if (!pciehp_ordered_wq) {
-                destroy_workqueue(pciehp_wq);
-                return -ENOMEM;
-        }
-
         pciehp_firmware_init();
         retval = pcie_port_service_register(&hpdriver_portdrv);
         dbg("pcie_port_service_register = %d\n", retval);
         info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
         if (retval) {
-                destroy_workqueue(pciehp_ordered_wq);
                 destroy_workqueue(pciehp_wq);
                 dbg("Failure to register service\n");
         }
@@ -367,7 +359,6 @@ static void __exit pcied_cleanup(void)
 {
         dbg("unload_pciehpd()\n");
         pcie_port_service_unregister(&hpdriver_portdrv);
-        destroy_workqueue(pciehp_ordered_wq);
         destroy_workqueue(pciehp_wq);
         info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
 }