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[PATCH] Fix on-the-fly switch from cfq i/o scheduler

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Don't clear ->elevator_data on exit, if we are switching queues we are
overwriting the data of the new io scheduler.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jens Axboe 2005-10-31 13:51:33 +01:00 committed by Linus Torvalds
parent dd05e42fa8
commit 4fc207419d
1 changed files with 1 additions and 3 deletions
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4
drivers/block/cfq-iosched.c
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@ -2059,10 +2059,8 @@ static void cfq_put_cfqd(struct cfq_data *cfqd)
if (!atomic_dec_and_test(&cfqd->ref))
return;
blk_put_queue(q);
cfq_shutdown_timer_wq(cfqd);
q->elevator->elevator_data = NULL;
blk_put_queue(q);
mempool_destroy(cfqd->crq_pool);
kfree(cfqd->crq_hash);