From: Hannes Reinecke Date: Wed, 28 Sep 2011 14:07:01 +0000 (-0600) Subject: block: Free queue resources at blk_release_queue() X-Git-Tag: v3.1-rc9~25^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=777eb1bf15b8532c396821774bf6451e563438f5;p=pandora-kernel.git 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-diff-tree failed