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authorJens Axboe <jens.axboe@oracle.com>2009-10-03 16:26:03 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-10-03 16:27:13 +0200
commit8e2967555571659d2c8a70dd120710110ed7bba4 (patch)
tree22716c5388f0269f5c1cef54958ae27df256c498 /include
parent365722bb917b08b7323b5a4a0a3386cc7d00397d (diff)
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cfq-iosched: implement slower async initiate and queue ramp up
This slowly ramps up the async queue depth based on the time passed since the sync IO, and doesn't allow async at all until a sync slice period has passed. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/blkdev.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 1a03b715dfa..a7323930d2b 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1147,7 +1147,11 @@ static inline void put_dev_sector(Sector p)
}
struct work_struct;
+struct delayed_work;
int kblockd_schedule_work(struct request_queue *q, struct work_struct *work);
+int kblockd_schedule_delayed_work(struct request_queue *q,
+ struct delayed_work *work,
+ unsigned long delay);
#define MODULE_ALIAS_BLOCKDEV(major,minor) \
MODULE_ALIAS("block-major-" __stringify(major) "-" __stringify(minor))