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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-08-07 09:55:03 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-08-07 09:55:03 +0100 |
| commit | 4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch) | |
| tree | d240e4d40357583e3f3eb228dccf20122a5b31ed /block/blk-core.c | |
| parent | f44f82e8a20b98558486eb14497b2f71c78fa325 (diff) | |
| parent | 64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc (diff) | |
| download | linux-stable-4fb8af10d0fd09372d52966b76922b9e82bbc950.tar.gz linux-stable-4fb8af10d0fd09372d52966b76922b9e82bbc950.tar.bz2 linux-stable-4fb8af10d0fd09372d52966b76922b9e82bbc950.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index fef79ccb2a11..4889eb86a39e 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -212,6 +212,24 @@ void blk_plug_device(struct request_queue *q) } EXPORT_SYMBOL(blk_plug_device); +/** + * blk_plug_device_unlocked - plug a device without queue lock held + * @q: The &struct request_queue to plug + * + * Description: + * Like @blk_plug_device(), but grabs the queue lock and disables + * interrupts. + **/ +void blk_plug_device_unlocked(struct request_queue *q) +{ + unsigned long flags; + + spin_lock_irqsave(q->queue_lock, flags); + blk_plug_device(q); + spin_unlock_irqrestore(q->queue_lock, flags); +} +EXPORT_SYMBOL(blk_plug_device_unlocked); + /* * remove the queue from the plugged list, if present. called with * queue lock held and interrupts disabled. |