From 777eb1bf15b8532c396821774bf6451e563438f5 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Wed, 28 Sep 2011 08:07:01 -0600 Subject: [PATCH] block: Free queue resources at blk_release_queue() A kernel crash is observed when a mounted ext3/ext4 filesystem is physically removed. The problem is that blk_cleanup_queue() frees up some resources eg by calling elevator_exit(), which are not checked for in normal operation. So we should rather move these calls to the destructor function blk_release_queue() as at that point all remaining references are gone. However, in doing so we have to ensure that any externally supplied queue_lock is disconnected as the driver might free up the lock after the call of blk_cleanup_queue(), Signed-off-by: Hannes Reinecke Signed-off-by: Jens Axboe --- Reading git-format-patch failed