[workqueue/driver-core PATCH v2 4/5] driver core: Attach devices on CPU local to device node

From: Alexander Duyck
Date: Wed Oct 10 2018 - 19:09:25 EST


This change makes it so that we call the asynchronous probe routines on a
CPU local to the device node. By doing this we should be able to improve
our initialization time significantly as we can avoid having to access the
device from a remote node which may introduce higher latency.

Signed-off-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxxxxxxxx>
---
drivers/base/dd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 5ba366c1cb83..81472dc44a70 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -826,7 +826,7 @@ static int __device_attach(struct device *dev, bool allow_async)
*/
dev_dbg(dev, "scheduling asynchronous probe\n");
get_device(dev);
- async_schedule(__device_attach_async_helper, dev);
+ async_schedule_dev(__device_attach_async_helper, dev);
} else {
pm_request_idle(dev);
}
@@ -927,7 +927,7 @@ static int __driver_attach(struct device *dev, void *data)
if (!dev->driver) {
get_device(dev);
dev_set_drvdata(dev, drv);
- async_schedule(__driver_attach_async_helper, dev);
+ async_schedule_dev(__driver_attach_async_helper, dev);
}
device_unlock(dev);
return 0;