From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Pontus Fuchs , Jens Axboe Subject: [PATCH 3.14 176/238] genhd: fix leftover might_sleep() in blk_free_devt() Date: Fri, 3 Oct 2014 14:31:31 -0700 Message-Id: <20141003212919.309216031@linuxfoundation.org> In-Reply-To: <20141003212913.680985295@linuxfoundation.org> References: <20141003212913.680985295@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jens Axboe 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 Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- 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;