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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-01-11 12:07:22 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-27 20:47:43 -0800 |
| commit | 1dbcda3ab27031e2b744b1f8ba48370304340519 (patch) | |
| tree | 004d1e2ba0fa153316fade027e92efab3ebb6f7b | |
| parent | 5f3e5a32d083008c1ad850375d24fc85a27803e4 (diff) | |
| download | linux-3.10-1dbcda3ab27031e2b744b1f8ba48370304340519.tar.gz linux-3.10-1dbcda3ab27031e2b744b1f8ba48370304340519.tar.bz2 linux-3.10-1dbcda3ab27031e2b744b1f8ba48370304340519.zip | |
PCI: shpchp: Handle push button event asynchronously
commit d347e75847c1fb299c97736638f45e6ea39702d4 upstream.
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 shpchp as a result.
486b10b9f4 ("PCI: pciehp: Handle push button event asynchronously") made
the same change to pciehp. I split this out from a patch by Yijing Wang
<wangyijing@huawei.com> so we fix one thing at a time and to make the
shpchp history correspond more closely with the pciehp history.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/pci/hotplug/shpchp.h | 1 | ||||
| -rw-r--r-- | drivers/pci/hotplug/shpchp_core.c | 10 | ||||
| -rw-r--r-- | drivers/pci/hotplug/shpchp_ctrl.c | 2 |
3 files changed, 1 insertions, 12 deletions
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index ca64932e658..1b69d955a31 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -47,7 +47,6 @@ extern bool shpchp_poll_mode; extern int shpchp_poll_time; extern bool shpchp_debug; extern struct workqueue_struct *shpchp_wq; -extern struct workqueue_struct *shpchp_ordered_wq; #define dbg(format, arg...) \ do { \ diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 7414fd9ad1d..5f1f0d93dc1 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -40,7 +40,6 @@ bool shpchp_debug; bool shpchp_poll_mode; int shpchp_poll_time; struct workqueue_struct *shpchp_wq; -struct workqueue_struct *shpchp_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>" @@ -175,7 +174,6 @@ void cleanup_slots(struct controller *ctrl) list_del(&slot->slot_list); cancel_delayed_work(&slot->work); flush_workqueue(shpchp_wq); - flush_workqueue(shpchp_ordered_wq); pci_hp_deregister(slot->hotplug_slot); } } @@ -364,17 +362,10 @@ static int __init shpcd_init(void) if (!shpchp_wq) return -ENOMEM; - shpchp_ordered_wq = alloc_ordered_workqueue("shpchp_ordered", 0); - if (!shpchp_ordered_wq) { - destroy_workqueue(shpchp_wq); - return -ENOMEM; - } - retval = pci_register_driver(&shpc_driver); dbg("%s: pci_register_driver = %d\n", __func__, retval); info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); if (retval) { - destroy_workqueue(shpchp_ordered_wq); destroy_workqueue(shpchp_wq); } return retval; @@ -384,7 +375,6 @@ static void __exit shpcd_cleanup(void) { dbg("unload_shpchpd()\n"); pci_unregister_driver(&shpc_driver); - destroy_workqueue(shpchp_ordered_wq); destroy_workqueue(shpchp_wq); info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n"); } diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c index b00b09bdd38..bba5b3e0bf8 100644 --- a/drivers/pci/hotplug/shpchp_ctrl.c +++ b/drivers/pci/hotplug/shpchp_ctrl.c @@ -456,7 +456,7 @@ void shpchp_queue_pushbutton_work(struct work_struct *work) kfree(info); goto out; } - queue_work(shpchp_ordered_wq, &info->work); + queue_work(shpchp_wq, &info->work); out: mutex_unlock(&p_slot->lock); } |