| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 176/238] genhd: fix leftover might_sleep() in blk_free_devt() | Date | Fri, 3 Oct 2014 14:31:31 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Jens Axboe <axboe@fb.com>
commit 46f341ffcfb5d8530f7d1e60f3be06cce6661b62 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- block/genhd.c | 2 -- 1 file changed, 2 deletions(-)
--- a/block/genhd.c +++ b/block/genhd.c @@ -445,8 +445,6 @@ int blk_alloc_devt(struct hd_struct *par */ void blk_free_devt(dev_t devt) { - might_sleep(); - if (devt == MKDEV(0, 0)) return;
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