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| author | Shaohua Li <shaohua.li@intel.com> | 2009-05-12 22:37:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-16 06:30:24 +0200 |
| commit | 401097ea4b89846d66ac78f7f108d49c2e922d9c (patch) | |
| tree | b16007ce17630731002757c02b25052e7ec7529c /drivers/base/core.c | |
| parent | debugfs: fix docbook error (diff) | |
| download | linux-401097ea4b89846d66ac78f7f108d49c2e922d9c.tar.xz linux-401097ea4b89846d66ac78f7f108d49c2e922d9c.zip | |
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>
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | 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 1977d4beb89e..7e8576d7822d 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(); } |