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authorJens Axboe <axboe@suse.de>2006-07-20 14:54:05 +0200
committerJens Axboe <axboe@nelson.home.kernel.dk>2006-09-30 20:29:40 +0200
commitdc72ef4ae35c2016fb594bcc85ce871376682174 (patch)
treec0c78879addf0d65adcc8f8cce01165fa2502dac /block/as-iosched.c
parent981a79730d586335ef8f942c83bdf2b1de6d4e3d (diff)
downloadlinux-linaro-dc72ef4ae35c2016fb594bcc85ce871376682174.tar.gz
[PATCH] Add blk_start_queueing() helper
CFQ implements this on its own now, but it's really block layer knowledge. Tells a device queue to start dispatching requests to the driver, taking care to unplug if needed. Also fixes the issue where as/cfq will invoke a stopped queue, which we really don't want. Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block/as-iosched.c')
-rw-r--r--block/as-iosched.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/block/as-iosched.c b/block/as-iosched.c
index f6dc9548931..bc13dc0b29b 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -1280,8 +1280,7 @@ static void as_work_handler(void *data)
unsigned long flags;
spin_lock_irqsave(q->queue_lock, flags);
- if (!as_queue_empty(q))
- q->request_fn(q);
+ blk_start_queueing(q);
spin_unlock_irqrestore(q->queue_lock, flags);
}