From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCHSET block/for-4.2/writeback] blkcg: blkcg_policy methods cleanup Date: Tue, 23 Jun 2015 22:44:06 -0400 Message-ID: <1435113853-12053-1-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=k1foF6pEBPJaqjaRJdm5DbNX8tcTwXcKsgqp0arniSE=; b=DJXdUd+jyfbx2kg7E7NMey+jmSyuxOISGgGPR1u5+nAtp9TF+9U/qD0HsNGjvPRZjA ib/ai/nkRCkLyZETps+dLL11UmQ+czDL2wBj3JxB1lKe+3GwOURHQlPR6Ii80I11nGoE pijJOSkd04DNGaZrwNp5W6lOnrEF3UzR6wQhTe0QSHRDb8kZ5ao0KR3wt16zFj+U2VTY WUbmHidg8q5MEx1VNMv7sLxsUAEoeVxGRTgHillGt75aUHBkuh2ocPJdu9aHTgrHdnvD miXvXaSsw1DwxmbBWItlVKrlzb+hu6gf2mZN980uGJ8y4r/HUjveo+MBmM+O+wNTjI0r fV/w== Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, avanzini.arianna-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, kernel-team-b10kYP2dOMg@public.gmane.org This patchset contains assorted cleanups for blkcg_policy methods. * alloc/free are added. exit is dropped. * blk-throttle's async percpu allocation is replaced with direct allocation. * all methods now take blkcg_policy_data instead of blkcg_gq. Nothing too controversial. Jens, as we're at the beginning of the 4.2 merge window, I'll ping / repost this patchset along with other pending patchsets once -rc1 drops. This patchset contains the following seven patches. 0001-blkcg-remove-unnecessary-request_list-blkg-NULL-test.patch 0002-blkcg-use-blkg_free-in-blkcg_init_queue-failure-path.patch 0003-blkcg-make-blkcg_activate_policy-allow-NULL-pd_init_.patch 0004-blkcg-replace-blkcg_policy-pd_size-with-pd_alloc-fre.patch 0005-blk-throttle-remove-asynchrnous-percpu-stats-allocat.patch 0006-blk-throttle-clean-up-blkg_policy_data-alloc-init-ex.patch 0007-blkcg-make-blkcg_policy-methods-take-a-pointer-to-bl.patch 0001-0003 are misc cleanups. 0004-0006 add alloc/free methods and remove blk-throttle's async percpu allocation mechanism. 0007 makes all methods take blkcg_policy_data. This patchset is also available in the following git branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-blkcg-methods-cleanup and is on top of [1] block/for-4.2/writeback [2] [PATCHSET block/for-4.2/writeback] block, cgroup: make cfq charge async IOs to the appropriate blkcgs diffstat follows. Thanks. block/blk-cgroup.c | 53 +++++-------- block/blk-throttle.c | 173 +++++++++++++-------------------------------- block/cfq-iosched.c | 37 +++++++-- include/linux/blk-cgroup.h | 31 +++----- 4 files changed, 116 insertions(+), 178 deletions(-) -- tejun [1] 5857cd637bc0 ("bdi: fix wrong error return value in cgwb_create()"). [2] http://lkml.kernel.org/g/1433753973-23684-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org