From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964930AbcBQBbw (ORCPT ); Tue, 16 Feb 2016 20:31:52 -0500 Received: from g1t6223.austin.hp.com ([15.73.96.124]:53319 "EHLO g1t6223.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933309AbcBQBbu (ORCPT ); Tue, 16 Feb 2016 20:31:50 -0500 From: Waiman Long To: Alexander Viro , Jan Kara , Jeff Layton , "J. Bruce Fields" , Tejun Heo , Christoph Lameter Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Ingo Molnar , Peter Zijlstra , Andi Kleen , Dave Chinner , Scott J Norton , Douglas Hatch , Waiman Long Subject: [RFC PATCH 0/2] vfs: Use per-cpu list for SB's s_inodes list Date: Tue, 16 Feb 2016 20:31:18 -0500 Message-Id: <1455672680-7153-1-git-send-email-Waiman.Long@hpe.com> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch is a replacement of my previous list batching patch - https://lwn.net/Articles/674105/. Compared with the previous patch, this one provides better performance and fairness. However, it also requires a bit more changes in the VFS layer. This patchset is a derivative of Andi Kleen's patch on "Initial per cpu list for the per sb inode list" https://git.kernel.org/cgit/linux/kernel/git/ak/linux-misc.git/commit/?h=hle315/combined&id=f1cf9e715a40f44086662ae3b29f123cf059cbf4 Patch 1 introduces the per-cpu list. Patch 2 modifies the superblock and inode structures to use the per-cpu list. The corresponding functions that reference those structures are modified. Waiman Long (2): lib/percpu-list: Per-cpu list with associated per-cpu locks vfs: Use per-cpu list for superblock's inode list fs/block_dev.c | 16 +++--- fs/drop_caches.c | 11 ++-- fs/fs-writeback.c | 16 +++--- fs/inode.c | 43 ++++++---------- fs/notify/inode_mark.c | 22 ++++---- fs/quota/dquot.c | 23 ++++----- fs/super.c | 7 ++- include/linux/fs.h | 8 ++-- include/linux/percpu-list.h | 117 +++++++++++++++++++++++++++++++++++++++++++ lib/Makefile | 2 +- lib/percpu-list.c | 80 +++++++++++++++++++++++++++++ 11 files changed, 263 insertions(+), 82 deletions(-) create mode 100644 include/linux/percpu-list.h create mode 100644 lib/percpu-list.c