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genhd: fix leftover might_sleep() in blk_free_devt()

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commit 46f341ffcf upstream.

Commit 2da78092 changed the locking from a mutex to a spinlock,
so we now longer sleep in this context. But there was a leftover
might_sleep() in there, which now triggers since we do the final
free from an RCU callback. Get rid of it.

Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Jens Axboe 2014-09-16 13:38:51 -06:00 committed by Zefan Li
parent 48dd9ce77c
commit 62db31b50e
1 changed files with 0 additions and 2 deletions
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2
block/genhd.c
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@ -447,8 +447,6 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt)
*/
void blk_free_devt(dev_t devt)
{
might_sleep();
if (devt == MKDEV(0, 0))
return;