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authorShaohua Li <shaohua.li@intel.com>2009-05-12 13:37:57 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-15 21:30:24 -0700
commit401097ea4b89846d66ac78f7f108d49c2e922d9c (patch)
treeb16007ce17630731002757c02b25052e7ec7529c
parent400ced61fa4914457d7e0a38e7c0fc6fd208694b (diff)
downloadlinaro-lsk-401097ea4b89846d66ac78f7f108d49c2e922d9c.tar.gz
driver core: synchronize device shutdown
A patch series to make .shutdown execute asynchronously. Some drivers's shutdown can take a lot of time. The patches can help save some shutdown time. The patches use Arjan's async API. This patch: synchronize all tasks submitted by .shutdown Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/base/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 1977d4beb89..7e8576d7822 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -22,6 +22,7 @@
#include <linux/kallsyms.h>
#include <linux/semaphore.h>
#include <linux/mutex.h>
+#include <linux/async.h>
#include "base.h"
#include "power/power.h"
@@ -1665,4 +1666,5 @@ void device_shutdown(void)
kobject_put(sysfs_dev_char_kobj);
kobject_put(sysfs_dev_block_kobj);
kobject_put(dev_kobj);
+ async_synchronize_full();
}