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Date: Wed, 22 Feb 2012 14:34:29 -0500 From: Vivek Goyal <vgoyal@...hat.com> To: Tejun Heo <tj@...nel.org> Cc: axboe@...nel.dk, ctalbott@...gle.com, rni@...gle.com, linux-kernel@...r.kernel.org Subject: Re: [PATCHSET] blkcg: accumulated blkcg updates On Tue, Feb 21, 2012 at 05:46:27PM -0800, Tejun Heo wrote: > Hello, Jens. > > This is accumulation of the following three patchsets on top of > block/for-linus - 621032ad6e "block: exit_io_context() should call > elevator_exit_icq_fn()". > > [1] blkcg: kill policy node and blkg->dev, take#4 > [2] blkcg: unify blkgs for different policies > [3] blkcg: update locking and fix stacking > This series looks good to me. We just need two more pieces which need to be pushed along with this series. - Do not cleanup all blkg upon policy change. Just reclaim policy data/blkg which belong to policy. - per cpu stat allocation from async context. Thanks Vivek > This patchset collects all three patchset into single series with all > the updated versions of patches included. There are also some minor > changes for build fixes and typos. Please refer to patch descriptions > of each patchset for further details. > > This patchset contains the following 36 patches. > > 0001-block-blk-throttle-should-be-drained-regardless-of-q.patch > 0002-blkcg-make-CONFIG_BLK_CGROUP-bool.patch > 0003-cfq-don-t-register-propio-policy-if-CONFIG_CFQ_GROUP.patch > 0004-elevator-clear-auxiliary-data-earlier-during-elevato.patch > 0005-elevator-make-elevator_init_fn-return-0-errno.patch > 0006-block-implement-blk_queue_bypass_start-end.patch > 0007-block-extend-queue-bypassing-to-cover-blkcg-policies.patch > 0008-blkcg-shoot-down-blkio_groups-on-elevator-switch.patch > 0009-blkcg-move-rcu_read_lock-outside-of-blkio_group-get-.patch > 0010-blkcg-update-blkg-get-functions-take-blkio_cgroup-as.patch > 0011-blkcg-use-q-and-plid-instead-of-opaque-void-for-blki.patch > 0012-blkcg-add-blkio_policy-array-and-allow-one-policy-pe.patch > 0013-blkcg-use-the-usual-get-blkg-path-for-root-blkio_gro.patch > 0014-blkcg-factor-out-blkio_group-creation.patch > 0015-blkcg-don-t-allow-or-retain-configuration-of-missing.patch > 0016-blkcg-kill-blkio_policy_node.patch > 0017-blkcg-kill-the-mind-bending-blkg-dev.patch > > 0018-blkcg-let-blkio_group-point-to-blkio_cgroup-directly.patch > 0019-blkcg-add-blkcg_-init-drain-exit-_queue.patch > 0020-blkcg-clear-all-request_queues-on-blkcg-policy-un-re.patch > 0021-blkcg-let-blkcg-core-handle-policy-private-data-allo.patch > 0022-blkcg-move-refcnt-to-blkcg-core.patch > 0023-blkcg-make-blkg-pd-an-array-and-move-configuration-a.patch > 0024-blkcg-don-t-use-blkg-plid-in-stat-related-functions.patch > 0025-blkcg-move-per-queue-blkg-list-heads-and-counters-to.patch > 0026-blkcg-let-blkcg-core-manage-per-queue-blkg-list-and-.patch > 0027-blkcg-unify-blkg-s-for-blkcg-policies.patch > 0028-blkcg-use-double-locking-instead-of-RCU-for-blkg-syn.patch > 0029-blkcg-drop-unnecessary-RCU-locking.patch > > 0030-block-restructure-get_request.patch > 0031-block-interface-update-for-ioc-icq-creation-function.patch > 0032-block-ioc_task_link-can-t-fail.patch > 0033-block-add-io_context-active_ref.patch > 0034-block-implement-bio_associate_current.patch > 0035-block-make-block-cgroup-policies-follow-bio-task-ass.patch > 0036-block-make-blk-throttle-preserve-the-issuing-task-on.patch > > 0001-0017 kill policy node and blkg->dev and also available in the > following git branch. > > git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git blkcg-kill-pn > > 0018-0029 unify blkgs for different policies and update locking. Note > that 0028 and 0029 belonged to the third patchset in the original > posting. > > git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git blkcg-unified-blkg > > 0030-0036 fix stacking of blkcg policies. > > git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git blkcg-stacking > > Thank you. > > diffstat follows. > > block/Kconfig.iosched | 4 > block/blk-cgroup.c | 1258 ++++++++++++++++++++++++---------------------- > block/blk-cgroup.h | 286 ++++++---- > block/blk-core.c | 179 ++++-- > block/blk-ioc.c | 58 +- > block/blk-sysfs.c | 6 > block/blk-throttle.c | 450 +++------------- > block/blk.h | 32 - > block/cfq-iosched.c | 509 +++++------------- > block/cfq.h | 113 ++-- > block/deadline-iosched.c | 8 > block/elevator.c | 123 +--- > block/noop-iosched.c | 8 > fs/bio.c | 61 ++ > include/linux/bio.h | 8 > include/linux/blk_types.h | 10 > include/linux/blkdev.h | 12 > include/linux/elevator.h | 8 > include/linux/iocontext.h | 32 - > init/Kconfig | 2 > kernel/fork.c | 5 > 21 files changed, 1521 insertions(+), 1651 deletions(-) > > Thanks. > > -- > tejun > > [1] http://thread.gmane.org/gmane.linux.kernel/1247152 > [2] http://thread.gmane.org/gmane.linux.kernel/1247287 > [3] http://thread.gmane.org/gmane.linux.kernel/1254428 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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