From mboxrd@z Thu Jan 1 00:00:00 1970 From: jeffm@suse.com Subject: [patch 0/3] reiserfs locking patchset Date: Mon, 05 Aug 2013 17:53:22 -0400 Message-ID: <20130805215322.224020225@suse.com> Return-path: Sender: reiserfs-devel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: reiserfs-devel@vger.kernel.org Cc: jack@suse.com This patchset untangles some of the locking in reiserfs. It has seen more testing as part of the maintenance cycle in SLE 11 SP2. - We push the write lock out of the xattr code. It doesn't need it and we can simplify locking by releasing and reacquiring the locks around the xattr calls. - Handle nested locks properly. There's confusion on when a lock is nested, when it's not, and how to drop it across schedules like the BKL it is modeled after. We make the distinction between taking/releasing the lock and when to drop it for schedules and simplify the logic. This fixes a number of deadlocks that happen because the intention was to drop the write lock but it really only decremented the use count. - Fix the deadlocks with the quota code. This involves dropping the write lock before quota calls and reacquring it afterwards. Without this patch reiserfs quotas are essentially unusable. Jan - This series is in the for-3.12 branch of git.kernel.org:/pub/scm/linux/kernel/git/jeffm/linux-reiserfs.git Thanks. -Jeff -- Jeff Mahoney SuSE Labs