From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCHSET cgroup/for-3.16] cgroup: implement cftype->write() Date: Tue, 6 May 2014 08:44:21 -0400 Message-ID: <1399380266-3324-1-git-send-email-tj@kernel.org> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id; bh=P92hPbgTKR2VH+SLwLX7r5FBSZ1HmKU2z+bcU6FTtHw=; b=sleiuEpVZ7hCqj3HmR/76NXt3AFT47x/p9MSPMuSEsoy5Fgmz+Kc/QlbgvHwoMrDTU O4Whlg0svIy2pX0Y7puuKNgO19n1BMNyElZE0tw4Nfn0m5cW3FHdPkWbTp5kHN9tNtlk Uhd9llY279cFc4ehiuF1ELKcHwCVthXIzrn6/l/nquDTm1ISoFiMf/aWZKMvnX9Oq15R uRGkvcajT7mQgAsUY3kGxkuEvpUzOJLCbcu4+h1X3ilcdeJQJwu8P3MQqsooM3md9OmG 96tyZINv/2192/XxPCkICA2TMZhaKfF033RfLNi2Wnwb/m/1eFi0tQlCfLyJvhavVDiT wvyQ== Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lizefan@huawei.com Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, vgoyal@redhat.com, axboe@kernel.dk, hannes@cmpxchg.org, mhocko@suse.cz, arozansk@redhat.com Hello, This patchset implements a new cftype operation ->write() and replace ->write_string() and ->trigger() with it. ->write() is similar to ->write_string() but maps directly to the kernfs write operation and has access to all available context information including the associated kernfs_open_file, which will make things like implementing kernfs active protection manipulation easier. ->write_string() becomes redundant and ->trigger() has always been spurious. This patch replaces all users of the two methods to ->write() and remove them. This patchset contains the following five patches. 0001-cgroup-implement-cftype-write.patch 0002-cgroup-replace-cftype-write_string-with-cftype-write.patch 0003-cgroup-replace-cftype-trigger-with-cftype-write.patch 0004-cgroup-convert-tasks-and-cgroup.procs-handle-to-use-.patch 0005-cgroup-remove-cgroup-control_kn.patch 0001 implements cftype->write(). 0002-0003 replace cftype->write_string() and ->trigger() with it. 0004 convert "tasks" and "cgroup.procs" handler too. 0005 removes cgroup->control_kn as the kernfs_node is now directly accessible from kernfs_open_file. This patchset is on top of cgroup/for-3.16 12d3089c192c ("kernel/cpuset.c: convert printk to pr_foo()") + [1] [PATCHSET cgroup/for-3.16] cgroup: post unified hierarchy fixes and updates and available on the following git branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-post-unified-updates diffstat follows. block/blk-throttle.c | 32 ++++++++--------- block/cfq-iosched.c | 28 +++++++-------- include/linux/cgroup.h | 40 +++++++++++---------- kernel/cgroup.c | 85 +++++++++++++++++++++++----------------------- kernel/cgroup_freezer.c | 20 ++++------ kernel/cpuset.c | 16 ++++---- mm/hugetlb_cgroup.c | 33 +++++++++-------- mm/memcontrol.c | 80 +++++++++++++++++++++++-------------------- net/ipv4/tcp_memcontrol.c | 31 +++++++++------- security/device_cgroup.c | 14 +++---- 10 files changed, 197 insertions(+), 182 deletions(-) Thanks. -- tejun [1] http://lkml.kernel.org/g/1399377044-29873-1-git-send-email-tj@kernel.org