| From | Greg Kroah-Hartman <> | Subject | [PATCH 13/64] driver core: synchronize device shutdown | Date | Mon, 15 Jun 2009 22:46:02 -0700 |
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From: Shaohua Li <shaohua.li@intel.com>
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> --- drivers/base/core.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/base/core.c b/drivers/base/core.c index 1977d4b..7e8576d 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(); } -- 1.6.3.2
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