Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754063AbcKRSzd (ORCPT ); Fri, 18 Nov 2016 13:55:33 -0500 Received: from smtp2.provo.novell.com ([137.65.250.81]:49144 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752693AbcKRSza (ORCPT ); Fri, 18 Nov 2016 13:55:30 -0500 From: Davidlohr Bueso To: mingo@kernel.org, peterz@infradead.org, oleg@redhat.com Cc: john.stultz@linaro.org, dimitrysh@google.com, linux-kernel@vger.kernel.org, dave@stgolabs.net Subject: [PATCH -tip 0/3] locking/percpu-rwsem: writer-side optimizations Date: Fri, 18 Nov 2016 10:54:34 -0800 Message-Id: <1479495277-9075-1-git-send-email-dave@stgolabs.net> X-Mailer: git-send-email 2.6.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1055 Lines: 29 Hi, Here are two updates intended for those rare updater cases. wrt numbers, I'm still trying to figure out this android boot environment (that calls cgroup_proc_write ipc paths) which might care about these changes. In the mean time, I'd like to know if anyone has any objections to these optimizations. Passed kernel builds with lockdep, as well as an overnight run doing locktoture. Thanks. Davidlohr Bueso (3): locking/percpu-rwsem: Move text file into Documentation/locking/ locking/percpu-rwsem: Replace bulky wait-queues with swait locking/percpu-rwsem: Avoid unnecessary writer wakeups Documentation/locking/percpu-rw-semaphore.txt | 27 ++++++++++ Documentation/percpu-rw-semaphore.txt | 27 ---------- include/linux/percpu-rwsem.h | 6 +-- kernel/locking/percpu-rwsem.c | 78 +++++++++++++++------------ 4 files changed, 73 insertions(+), 65 deletions(-) create mode 100644 Documentation/locking/percpu-rw-semaphore.txt delete mode 100644 Documentation/percpu-rw-semaphore.txt -- 2.6.6