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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-07 04:42:09 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-11-07 04:42:09 +0400
commit43d388832bd3e413e9b5e6f3caef4b0844b901af (patch)
tree0a95011781ad5a4286761fd17ed2f5c285b5e02a /drivers/acpi/pci_root.c
parenta3b1b1ef78cd2ffb5d3a223465064dee05929dc3 (diff)
downloadlinux-43d388832bd3e413e9b5e6f3caef4b0844b901af.tar.xz
ACPI / hotplug: Carry out PCI root eject directly
Since _handle_hotplug_event_root() is run from the ACPI hotplug workqueue, it doesn't need to queue up a work item to eject a PCI host bridge on the same workqueue. Instead, it can just carry out the eject by calling acpi_bus_device_eject() directly, so make that happen. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index add408b07c93..d77f0bf7eda0 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -592,16 +592,6 @@ static void handle_root_bridge_insertion(acpi_handle handle)
acpi_handle_err(handle, "cannot add bridge to acpi list\n");
}
-static void handle_root_bridge_removal(struct acpi_device *device)
-{
- acpi_status status;
-
- get_device(&device->dev);
- status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, device);
- if (ACPI_FAILURE(status))
- put_device(&device->dev);
-}
-
static void _handle_hotplug_event_root(struct work_struct *work)
{
struct acpi_pci_root *root;
@@ -612,6 +602,7 @@ static void _handle_hotplug_event_root(struct work_struct *work)
hp_work = container_of(work, struct acpi_hp_work, work);
handle = hp_work->handle;
type = hp_work->type;
+ kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
acpi_scan_lock_acquire();
@@ -641,9 +632,15 @@ static void _handle_hotplug_event_root(struct work_struct *work)
/* request device eject */
acpi_handle_printk(KERN_DEBUG, handle,
"Device eject notify on %s\n", __func__);
- if (root)
- handle_root_bridge_removal(root->device);
- break;
+ if (!root)
+ break;
+
+ get_device(&root->device->dev);
+
+ acpi_scan_lock_release();
+
+ acpi_bus_device_eject(root->device, ACPI_NOTIFY_EJECT_REQUEST);
+ return;
default:
acpi_handle_warn(handle,
"notify_handler: unknown event type 0x%x\n",
@@ -652,7 +649,6 @@ static void _handle_hotplug_event_root(struct work_struct *work)
}
acpi_scan_lock_release();
- kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
}
static void handle_hotplug_event_root(acpi_handle handle, u32 type,