linux-kernel - Re: [PATCH 3.13 026/163] block: Fix dev

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Date:	Thu, 9 Oct 2014 15:09:08 -0600
From:	Jens Axboe <axboe@...com>
To:	Kamal Mostafa <kamal@...onical.com>,
	<linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>,
	<kernel-team@...ts.ubuntu.com>
CC:	Keith Busch <keith.busch@...el.com>
Subject: Re: [PATCH 3.13 026/163] block: Fix dev_t minor allocation lifetime

On 10/09/2014 03:00 PM, Kamal Mostafa wrote:
> 3.13.11.9 -stable review patch.  If anyone has any objections, please let me know.

You need this one as well, like I told Greg the other day:

commit 46f341ffcfb5d8530f7d1e60f3be06cce6661b62
Author: Jens Axboe <axboe@...com>
Date:   Tue Sep 16 13:38:51 2014 -0600

    genhd: fix leftover might_sleep() in blk_free_devt()

    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@...il.com>
    Signed-off-by: Jens Axboe <axboe@...com>

-- 
Jens Axboe

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