From: Vivek Goyal <vgoyal@redhat.com> To: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Cc: jens.axboe@oracle.com, linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, dm-devel@redhat.com, nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com, mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it, ryov@valinux.co.jp, fernando@oss.ntt.co.jp, s-uchida@ap.jp.nec.com, taka@valinux.co.jp, jmoyer@redhat.com, dhaval@linux.vnet.ibm.com, balbir@linux.vnet.ibm.com, righi.andrea@gmail.com, m-ikeda@ds.jp.nec.com, agk@redhat.com, akpm@linux-foundation.org, peterz@infradead.org, jmarchan@redhat.com, torvalds@linux-foundation.org, mingo@elte.hu, riel@redhat.com Subject: Re: [PATCH] io-controller: Fix task hanging when there are more than one groups Date: Sun, 13 Sep 2009 22:44:01 -0400 [thread overview] Message-ID: <20090914024401.GA14077@redhat.com> (raw) In-Reply-To: <4AA9A4BE.30005@cn.fujitsu.com> On Fri, Sep 11, 2009 at 09:15:42AM +0800, Gui Jianfeng wrote: [..] > Hi Vivek, Jens, > > Currently, If there's only the root cgroup and no other child cgroup available, io-controller will > optimize to stop expiring the current ioq, and we thought the current ioq belongs to root group. But > in some cases, this assumption is not true. Consider the following scenario, if there is a child cgroup > located in root cgroup, and task A is running in the child cgroup, and task A issues some IOs. Then we > kill task A and remove the child cgroup, at this time, there is only root cgroup available. But the ioq > is still under service, and from now on, this ioq won't expire because "only root" optimization. > The following patch ensures the ioq do belongs to the root group if there's only root group existing. > > Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Cool. Good catch Gui. Queued for next posting. Thanks Vivek > --- > block/elevator-fq.c | 13 +++++++------ > 1 files changed, 7 insertions(+), 6 deletions(-) > > diff --git a/block/elevator-fq.c b/block/elevator-fq.c > index b723c12..3f86552 100644 > --- a/block/elevator-fq.c > +++ b/block/elevator-fq.c > @@ -2338,9 +2338,10 @@ void elv_reset_request_ioq(struct request_queue *q, struct request *rq) > } > } > > -static inline int is_only_root_group(void) > +static inline int is_only_root_group(struct elv_fq_data *efqd) > { > - if (list_empty(&io_root_cgroup.css.cgroup->children)) > + if (list_empty(&io_root_cgroup.css.cgroup->children) && > + efqd->busy_queues == 1 && efqd->root_group->ioq) > return 1; > > return 0; > @@ -2383,7 +2384,7 @@ static void io_free_root_group(struct elevator_queue *e) > int elv_iog_should_idle(struct io_queue *ioq) { return 0; } > EXPORT_SYMBOL(elv_iog_should_idle); > > -static inline int is_only_root_group(void) > +static inline int is_only_root_group(struct elv_fq_data *efqd) > { > return 1; > } > @@ -2547,7 +2548,7 @@ elv_iosched_expire_ioq(struct request_queue *q, int slice_expired, int force) > struct elevator_queue *e = q->elevator; > struct io_queue *ioq = elv_active_ioq(q->elevator); > int ret = 1; > - > + > if (e->ops->elevator_expire_ioq_fn) { > ret = e->ops->elevator_expire_ioq_fn(q, ioq->sched_queue, > slice_expired, force); > @@ -2969,7 +2970,7 @@ void *elv_select_ioq(struct request_queue *q, int force) > * single queue ioschedulers (noop, deadline, AS). > */ > > - if (is_only_root_group() && elv_iosched_single_ioq(q->elevator)) > + if (is_only_root_group(efqd) && elv_iosched_single_ioq(q->elevator)) > goto keep_queue; > > /* We are waiting for this group to become busy before it expires.*/ > @@ -3180,7 +3181,7 @@ void elv_ioq_completed_request(struct request_queue *q, struct request *rq) > * unnecessary overhead. > */ > > - if (is_only_root_group() && > + if (is_only_root_group(ioq->efqd) && > elv_iosched_single_ioq(q->elevator)) { > elv_log_ioq(efqd, ioq, "select: only root group," > " no expiry"); > -- > 1.5.4.rc3 > > > > >
WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com> To: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Cc: dhaval@linux.vnet.ibm.com, peterz@infradead.org, dm-devel@redhat.com, dpshah@google.com, jens.axboe@oracle.com, agk@redhat.com, balbir@linux.vnet.ibm.com, paolo.valente@unimore.it, jmarchan@redhat.com, fernando@oss.ntt.co.jp, mikew@google.com, jmoyer@redhat.com, nauman@google.com, mingo@elte.hu, m-ikeda@ds.jp.nec.com, riel@redhat.com, lizf@cn.fujitsu.com, fchecconi@gmail.com, s-uchida@ap.jp.nec.com, containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, righi.andrea@gmail.com, torvalds@linux-foundation.org Subject: Re: [PATCH] io-controller: Fix task hanging when there are more than one groups Date: Sun, 13 Sep 2009 22:44:01 -0400 [thread overview] Message-ID: <20090914024401.GA14077@redhat.com> (raw) In-Reply-To: <4AA9A4BE.30005@cn.fujitsu.com> On Fri, Sep 11, 2009 at 09:15:42AM +0800, Gui Jianfeng wrote: [..] > Hi Vivek, Jens, > > Currently, If there's only the root cgroup and no other child cgroup available, io-controller will > optimize to stop expiring the current ioq, and we thought the current ioq belongs to root group. But > in some cases, this assumption is not true. Consider the following scenario, if there is a child cgroup > located in root cgroup, and task A is running in the child cgroup, and task A issues some IOs. Then we > kill task A and remove the child cgroup, at this time, there is only root cgroup available. But the ioq > is still under service, and from now on, this ioq won't expire because "only root" optimization. > The following patch ensures the ioq do belongs to the root group if there's only root group existing. > > Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Cool. Good catch Gui. Queued for next posting. Thanks Vivek > --- > block/elevator-fq.c | 13 +++++++------ > 1 files changed, 7 insertions(+), 6 deletions(-) > > diff --git a/block/elevator-fq.c b/block/elevator-fq.c > index b723c12..3f86552 100644 > --- a/block/elevator-fq.c > +++ b/block/elevator-fq.c > @@ -2338,9 +2338,10 @@ void elv_reset_request_ioq(struct request_queue *q, struct request *rq) > } > } > > -static inline int is_only_root_group(void) > +static inline int is_only_root_group(struct elv_fq_data *efqd) > { > - if (list_empty(&io_root_cgroup.css.cgroup->children)) > + if (list_empty(&io_root_cgroup.css.cgroup->children) && > + efqd->busy_queues == 1 && efqd->root_group->ioq) > return 1; > > return 0; > @@ -2383,7 +2384,7 @@ static void io_free_root_group(struct elevator_queue *e) > int elv_iog_should_idle(struct io_queue *ioq) { return 0; } > EXPORT_SYMBOL(elv_iog_should_idle); > > -static inline int is_only_root_group(void) > +static inline int is_only_root_group(struct elv_fq_data *efqd) > { > return 1; > } > @@ -2547,7 +2548,7 @@ elv_iosched_expire_ioq(struct request_queue *q, int slice_expired, int force) > struct elevator_queue *e = q->elevator; > struct io_queue *ioq = elv_active_ioq(q->elevator); > int ret = 1; > - > + > if (e->ops->elevator_expire_ioq_fn) { > ret = e->ops->elevator_expire_ioq_fn(q, ioq->sched_queue, > slice_expired, force); > @@ -2969,7 +2970,7 @@ void *elv_select_ioq(struct request_queue *q, int force) > * single queue ioschedulers (noop, deadline, AS). > */ > > - if (is_only_root_group() && elv_iosched_single_ioq(q->elevator)) > + if (is_only_root_group(efqd) && elv_iosched_single_ioq(q->elevator)) > goto keep_queue; > > /* We are waiting for this group to become busy before it expires.*/ > @@ -3180,7 +3181,7 @@ void elv_ioq_completed_request(struct request_queue *q, struct request *rq) > * unnecessary overhead. > */ > > - if (is_only_root_group() && > + if (is_only_root_group(ioq->efqd) && > elv_iosched_single_ioq(q->elevator)) { > elv_log_ioq(efqd, ioq, "select: only root group," > " no expiry"); > -- > 1.5.4.rc3 > > > > >
next prev parent reply other threads:[~2009-09-14 2:45 UTC|newest] Thread overview: 321+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-08-28 21:30 [RFC] IO scheduler based IO controller V9 Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-28 21:30 ` [PATCH 01/23] io-controller: Documentation Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-28 21:30 ` [PATCH 02/23] io-controller: Core of the elevator fair queuing Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-28 22:26 ` Rik van Riel 2009-08-28 22:26 ` Rik van Riel [not found] ` <1251495072-7780-3-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-28 22:26 ` Rik van Riel 2009-08-28 21:30 ` [PATCH 03/23] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-29 1:29 ` Rik van Riel 2009-08-29 1:29 ` Rik van Riel [not found] ` <1251495072-7780-4-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 1:29 ` Rik van Riel 2009-08-28 21:30 ` [PATCH 04/23] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-29 1:44 ` Rik van Riel 2009-08-29 1:44 ` Rik van Riel [not found] ` <1251495072-7780-5-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 1:44 ` Rik van Riel [not found] ` <1251495072-7780-1-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-28 21:30 ` [PATCH 01/23] io-controller: Documentation Vivek Goyal 2009-08-28 21:30 ` [PATCH 02/23] io-controller: Core of the elevator fair queuing Vivek Goyal 2009-08-28 21:30 ` [PATCH 03/23] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-08-28 21:30 ` [PATCH 04/23] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal 2009-08-28 21:30 ` [PATCH 05/23] io-controller: Core scheduler changes to support hierarhical scheduling Vivek Goyal 2009-08-28 21:30 ` [PATCH 06/23] io-controller: cgroup related changes for hierarchical group support Vivek Goyal 2009-08-28 21:30 ` [PATCH 07/23] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-08-28 21:30 ` [PATCH 08/23] io-controller: cfq changes to use " Vivek Goyal 2009-08-28 21:30 ` [PATCH 09/23] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-08-28 21:30 ` [PATCH 10/23] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-08-28 21:31 ` [PATCH 11/23] io-controller: Introduce group idling Vivek Goyal 2009-08-28 21:31 ` [PATCH 12/23] io-controller: Wait for requests to complete from last queue before new queue is scheduled Vivek Goyal 2009-08-28 21:31 ` [PATCH 13/23] io-controller: Separate out queue and data Vivek Goyal 2009-08-28 21:31 ` [PATCH 14/23] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-08-28 21:31 ` [PATCH 15/23] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-08-28 21:31 ` [PATCH 16/23] io-controller: deadline " Vivek Goyal 2009-08-28 21:31 ` [PATCH 17/23] io-controller: anticipatory " Vivek Goyal 2009-08-28 21:31 ` [PATCH 18/23] io-controller: blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-08-28 21:31 ` [PATCH 19/23] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-08-28 21:31 ` [PATCH 20/23] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-08-28 21:31 ` [PATCH 21/23] io-controller: Per io group bdi congestion interface Vivek Goyal 2009-08-28 21:31 ` [PATCH 22/23] io-controller: Support per cgroup per device weights and io class Vivek Goyal 2009-08-28 21:31 ` [PATCH 23/23] io-controller: debug elevator fair queuing support Vivek Goyal 2009-08-31 1:09 ` [RFC] IO scheduler based IO controller V9 Gui Jianfeng 2009-09-02 0:58 ` Gui Jianfeng 2009-09-07 7:40 ` Gui Jianfeng 2009-09-08 22:28 ` Vivek Goyal 2009-09-08 22:28 ` [PATCH 24/23] io-controller: Don't leave a queue active when a disk is idle Vivek Goyal 2009-09-08 22:28 ` [PATCH 25/23] io-controller: fix queue vs group fairness Vivek Goyal 2009-09-08 22:28 ` [PATCH 26/23] io-controller: fix writer preemption with in a group Vivek Goyal 2009-09-10 15:18 ` [RFC] IO scheduler based IO controller V9 Jerome Marchand 2009-08-28 21:30 ` [PATCH 05/23] io-controller: Core scheduler changes to support hierarhical scheduling Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-29 3:31 ` Rik van Riel 2009-08-29 3:31 ` Rik van Riel [not found] ` <1251495072-7780-6-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 3:31 ` Rik van Riel 2009-08-28 21:30 ` [PATCH 06/23] io-controller: cgroup related changes for hierarchical group support Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal [not found] ` <1251495072-7780-7-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 3:37 ` Rik van Riel 2009-08-29 3:37 ` Rik van Riel 2009-08-29 3:37 ` Rik van Riel 2009-08-28 21:30 ` [PATCH 07/23] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-29 23:04 ` Rik van Riel 2009-08-29 23:04 ` Rik van Riel 2009-09-03 3:08 ` Munehiro Ikeda 2009-09-03 3:08 ` Munehiro Ikeda [not found] ` <4A9F3319.8040509-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-09-10 20:11 ` Vivek Goyal 2009-09-10 20:11 ` Vivek Goyal 2009-09-10 20:11 ` Vivek Goyal [not found] ` <1251495072-7780-8-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 23:04 ` Rik van Riel 2009-09-03 3:08 ` Munehiro Ikeda 2009-08-28 21:30 ` [PATCH 08/23] io-controller: cfq changes to use " Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal 2009-08-29 23:11 ` Rik van Riel 2009-08-29 23:11 ` Rik van Riel [not found] ` <1251495072-7780-9-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 23:11 ` Rik van Riel 2009-08-28 21:30 ` [PATCH 09/23] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal [not found] ` <1251495072-7780-10-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-29 23:12 ` Rik van Riel 2009-08-29 23:12 ` Rik van Riel 2009-08-29 23:12 ` Rik van Riel 2009-08-28 21:30 ` [PATCH 10/23] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-08-28 21:30 ` Vivek Goyal [not found] ` <1251495072-7780-11-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-30 0:10 ` Rik van Riel 2009-08-30 0:10 ` Rik van Riel 2009-08-30 0:10 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 11/23] io-controller: Introduce group idling Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-30 0:38 ` Rik van Riel 2009-08-30 0:38 ` Rik van Riel [not found] ` <1251495072-7780-12-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-30 0:38 ` Rik van Riel 2009-09-18 3:56 ` [PATCH] io-controller: Fix another bug that causing system hanging Gui Jianfeng 2009-09-18 3:56 ` Gui Jianfeng 2009-09-18 3:56 ` Gui Jianfeng 2009-09-18 14:47 ` Vivek Goyal 2009-09-18 14:47 ` Vivek Goyal [not found] ` <4AB30508.6010206-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-18 14:47 ` Vivek Goyal 2009-08-28 21:31 ` [PATCH 12/23] io-controller: Wait for requests to complete from last queue before new queue is scheduled Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal [not found] ` <1251495072-7780-13-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-30 0:40 ` Rik van Riel 2009-08-30 0:40 ` Rik van Riel 2009-08-30 0:40 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 13/23] io-controller: Separate out queue and data Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 15:27 ` Rik van Riel 2009-08-31 15:27 ` Rik van Riel [not found] ` <1251495072-7780-14-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 15:27 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 14/23] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 2:49 ` Rik van Riel 2009-08-31 2:49 ` Rik van Riel [not found] ` <1251495072-7780-15-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 2:49 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 15/23] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 2:52 ` Rik van Riel 2009-08-31 2:52 ` Rik van Riel 2009-09-10 17:32 ` Vivek Goyal 2009-09-10 17:32 ` Vivek Goyal [not found] ` <4A9B3B0B.9090009-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-10 17:32 ` Vivek Goyal [not found] ` <1251495072-7780-16-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 2:52 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 16/23] io-controller: deadline " Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 3:13 ` Rik van Riel 2009-08-31 3:13 ` Rik van Riel 2009-08-31 13:46 ` Vivek Goyal 2009-08-31 13:46 ` Vivek Goyal [not found] ` <4A9B3FD3.6000407-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 13:46 ` Vivek Goyal [not found] ` <1251495072-7780-17-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 3:13 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 17/23] io-controller: anticipatory " Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal [not found] ` <1251495072-7780-18-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 17:21 ` Rik van Riel 2009-08-31 17:21 ` Rik van Riel 2009-08-31 17:21 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 18/23] io-controller: blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal [not found] ` <1251495072-7780-19-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 17:34 ` Rik van Riel 2009-08-31 17:34 ` Rik van Riel 2009-08-31 17:34 ` Rik van Riel 2009-08-31 18:56 ` Vivek Goyal 2009-08-31 18:56 ` Vivek Goyal 2009-08-31 23:51 ` Nauman Rafique 2009-08-31 23:51 ` Nauman Rafique 2009-09-01 7:00 ` Ryo Tsuruta 2009-09-01 7:00 ` Ryo Tsuruta [not found] ` <20090901.160004.226800357.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-09-01 14:11 ` Vivek Goyal 2009-09-01 14:11 ` Vivek Goyal 2009-09-01 14:11 ` Vivek Goyal 2009-09-01 14:53 ` Rik van Riel 2009-09-01 14:53 ` Rik van Riel 2009-09-01 18:02 ` Nauman Rafique 2009-09-01 18:02 ` Nauman Rafique [not found] ` <20090901141142.GA13709-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-01 14:53 ` Rik van Riel 2009-09-01 18:02 ` Nauman Rafique 2009-09-02 0:59 ` KAMEZAWA Hiroyuki 2009-09-02 9:52 ` Ryo Tsuruta 2009-09-02 0:59 ` KAMEZAWA Hiroyuki 2009-09-02 0:59 ` KAMEZAWA Hiroyuki 2009-09-02 3:12 ` Balbir Singh 2009-09-02 3:12 ` Balbir Singh [not found] ` <20090902095912.cdf8a55e.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org> 2009-09-02 3:12 ` Balbir Singh 2009-09-02 9:52 ` Ryo Tsuruta [not found] ` <20090902.185251.193693849.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-09-02 13:58 ` Vivek Goyal 2009-09-02 13:58 ` Vivek Goyal 2009-09-02 13:58 ` Vivek Goyal 2009-09-03 2:24 ` Ryo Tsuruta 2009-09-03 2:40 ` Vivek Goyal 2009-09-03 2:40 ` Vivek Goyal [not found] ` <20090903024014.GA8644-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-03 3:41 ` Ryo Tsuruta 2009-09-03 3:41 ` Ryo Tsuruta 2009-09-03 3:41 ` Ryo Tsuruta [not found] ` <20090903.112423.226782505.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-09-03 2:40 ` Vivek Goyal [not found] ` <20090902135821.GB5012-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-03 2:24 ` Ryo Tsuruta [not found] ` <e98e18940908311651s26de5b70ye6f4a82402956309-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2009-09-01 7:00 ` Ryo Tsuruta [not found] ` <20090831185640.GF3758-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 23:51 ` Nauman Rafique [not found] ` <4A9C09BE.4060404-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 18:56 ` Vivek Goyal 2009-08-28 21:31 ` [PATCH 19/23] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal [not found] ` <1251495072-7780-20-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 17:39 ` Rik van Riel 2009-08-31 17:39 ` Rik van Riel 2009-08-31 17:39 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 20/23] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 17:54 ` Rik van Riel 2009-08-31 17:54 ` Rik van Riel 2009-09-14 18:33 ` Nauman Rafique 2009-09-14 18:33 ` Nauman Rafique [not found] ` <e98e18940909141133m5186b780r3215ce15141e4f87-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2009-09-16 18:47 ` Vivek Goyal 2009-09-16 18:47 ` Vivek Goyal 2009-09-16 18:47 ` Vivek Goyal [not found] ` <1251495072-7780-21-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 17:54 ` Rik van Riel 2009-09-14 18:33 ` Nauman Rafique 2009-08-28 21:31 ` [PATCH 21/23] io-controller: Per io group bdi congestion interface Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 19:49 ` Rik van Riel 2009-08-31 19:49 ` Rik van Riel [not found] ` <1251495072-7780-22-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 19:49 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 22/23] io-controller: Support per cgroup per device weights and io class Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal [not found] ` <1251495072-7780-23-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 20:56 ` Rik van Riel 2009-08-31 20:56 ` Rik van Riel 2009-08-31 20:56 ` Rik van Riel 2009-08-28 21:31 ` [PATCH 23/23] io-controller: debug elevator fair queuing support Vivek Goyal 2009-08-28 21:31 ` Vivek Goyal 2009-08-31 20:57 ` Rik van Riel 2009-08-31 20:57 ` Rik van Riel 2009-08-31 21:01 ` Vivek Goyal 2009-08-31 21:01 ` Vivek Goyal 2009-08-31 21:12 ` Rik van Riel 2009-08-31 21:12 ` Rik van Riel [not found] ` <20090831210154.GA8229-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 21:12 ` Rik van Riel [not found] ` <4A9C3951.8020302-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 21:01 ` Vivek Goyal [not found] ` <1251495072-7780-24-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-08-31 20:57 ` Rik van Riel 2009-08-31 1:09 ` [RFC] IO scheduler based IO controller V9 Gui Jianfeng 2009-08-31 1:09 ` Gui Jianfeng 2009-09-02 0:58 ` Gui Jianfeng 2009-09-02 0:58 ` Gui Jianfeng 2009-09-02 13:45 ` Vivek Goyal 2009-09-02 13:45 ` Vivek Goyal [not found] ` <4A9DC33E.6000408-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-02 13:45 ` Vivek Goyal 2009-09-07 2:14 ` Gui Jianfeng 2009-09-07 2:14 ` Gui Jianfeng 2009-09-07 2:14 ` Gui Jianfeng [not found] ` <4AA46C6E.4010109-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-08 13:55 ` Vivek Goyal 2009-09-08 13:55 ` Vivek Goyal 2009-09-08 13:55 ` Vivek Goyal 2009-09-07 7:40 ` Gui Jianfeng 2009-09-07 7:40 ` Gui Jianfeng 2009-09-08 13:53 ` Vivek Goyal 2009-09-08 13:53 ` Vivek Goyal [not found] ` <4AA4B905.8010801-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-08 13:53 ` Vivek Goyal 2009-09-08 19:19 ` Vivek Goyal 2009-09-08 19:19 ` Vivek Goyal 2009-09-08 19:19 ` Vivek Goyal 2009-09-09 7:38 ` Gui Jianfeng 2009-09-09 7:38 ` Gui Jianfeng [not found] ` <4AA75B71.5060109-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-09 15:05 ` Vivek Goyal 2009-09-09 15:05 ` Vivek Goyal 2009-09-09 15:05 ` Vivek Goyal 2009-09-10 3:20 ` Gui Jianfeng [not found] ` <20090909150537.GD8256-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-10 3:20 ` Gui Jianfeng 2009-09-11 1:15 ` [PATCH] io-controller: Fix task hanging when there are more than one groups Gui Jianfeng 2009-09-11 1:15 ` Gui Jianfeng 2009-09-14 2:44 ` Vivek Goyal [this message] 2009-09-14 2:44 ` Vivek Goyal [not found] ` <4AA9A4BE.30005-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-14 2:44 ` Vivek Goyal 2009-09-15 3:37 ` Vivek Goyal 2009-09-15 3:37 ` Vivek Goyal 2009-09-15 3:37 ` Vivek Goyal 2009-09-16 0:05 ` Gui Jianfeng 2009-09-16 0:05 ` Gui Jianfeng [not found] ` <20090915033739.GA4054-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-16 0:05 ` Gui Jianfeng 2009-09-16 2:58 ` Gui Jianfeng 2009-09-24 1:10 ` Gui Jianfeng 2009-09-16 2:58 ` Gui Jianfeng 2009-09-16 18:09 ` Vivek Goyal 2009-09-16 18:09 ` Vivek Goyal 2009-09-17 6:08 ` Gui Jianfeng 2009-09-17 6:08 ` Gui Jianfeng [not found] ` <20090916180915.GE5221-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-17 6:08 ` Gui Jianfeng [not found] ` <4AB05442.6080004-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-09-16 18:09 ` Vivek Goyal 2009-09-24 1:10 ` Gui Jianfeng 2009-09-09 9:41 ` [RFC] IO scheduler based IO controller V9 Jens Axboe 2009-09-09 9:41 ` Jens Axboe [not found] ` <20090908191941.GF15974-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-09 7:38 ` Gui Jianfeng 2009-09-09 9:41 ` Jens Axboe 2009-09-08 22:28 ` Vivek Goyal 2009-09-08 22:28 ` Vivek Goyal 2009-09-08 22:28 ` [PATCH 24/23] io-controller: Don't leave a queue active when a disk is idle Vivek Goyal [not found] ` <20090908222821.GB3558-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-09 3:39 ` Rik van Riel 2009-09-09 3:39 ` Rik van Riel 2009-09-08 22:28 ` [PATCH 25/23] io-controller: fix queue vs group fairness Vivek Goyal 2009-09-08 22:28 ` Vivek Goyal [not found] ` <20090908222827.GC3558-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-08 22:37 ` Daniel Walker 2009-09-08 23:13 ` Fabio Checconi 2009-09-09 4:44 ` Rik van Riel 2009-09-08 22:37 ` Daniel Walker 2009-09-09 1:09 ` Vivek Goyal 2009-09-09 1:09 ` Vivek Goyal 2009-09-09 1:09 ` Vivek Goyal 2009-09-08 23:13 ` Fabio Checconi 2009-09-09 1:32 ` Vivek Goyal 2009-09-09 1:32 ` Vivek Goyal [not found] ` <20090909013205.GB3594-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-09 2:03 ` Fabio Checconi 2009-09-09 2:03 ` Fabio Checconi [not found] ` <20090908231334.GJ17468-f9ZlEuEWxVeACYmtYXMKmw@public.gmane.org> 2009-09-09 1:32 ` Vivek Goyal 2009-09-09 4:44 ` Rik van Riel 2009-09-09 4:44 ` Rik van Riel 2009-09-08 22:28 ` [PATCH 26/23] io-controller: fix writer preemption with in a group Vivek Goyal 2009-09-08 22:28 ` Vivek Goyal [not found] ` <20090908222835.GD3558-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-09 4:59 ` Rik van Riel 2009-09-09 4:59 ` Rik van Riel 2009-09-09 4:59 ` Rik van Riel 2009-09-10 15:18 ` [RFC] IO scheduler based IO controller V9 Jerome Marchand 2009-09-10 20:52 ` Vivek Goyal 2009-09-10 20:52 ` Vivek Goyal 2009-09-10 20:56 ` Vivek Goyal 2009-09-10 20:56 ` Vivek Goyal [not found] ` <20090910205657.GD3617-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-11 13:16 ` Jerome Marchand 2009-09-11 13:16 ` Jerome Marchand 2009-09-11 14:30 ` Vivek Goyal 2009-09-11 14:30 ` Vivek Goyal [not found] ` <20090911143040.GB6758-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-11 14:43 ` Vivek Goyal 2009-09-11 14:44 ` Jerome Marchand 2009-09-11 14:43 ` Vivek Goyal 2009-09-11 14:43 ` Vivek Goyal [not found] ` <20090911144341.GC6758-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-11 14:55 ` Jerome Marchand 2009-09-11 14:55 ` Jerome Marchand [not found] ` <4AAA64F6.2050800-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-11 15:01 ` Vivek Goyal 2009-09-11 15:01 ` Vivek Goyal 2009-09-11 15:01 ` Vivek Goyal 2009-09-11 14:44 ` Jerome Marchand [not found] ` <4AAA4DA7.8010909-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-11 14:30 ` Vivek Goyal [not found] ` <20090910205227.GB3617-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-10 20:56 ` Vivek Goyal 2009-09-14 14:26 ` Jerome Marchand 2009-09-14 14:26 ` Jerome Marchand 2009-09-13 18:54 ` Vivek Goyal 2009-09-13 18:54 ` Vivek Goyal [not found] ` <20090913185447.GA11003-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-14 14:31 ` Jerome Marchand 2009-09-14 14:31 ` Jerome Marchand [not found] ` <4AA918C1.6070907-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-09-10 20:52 ` Vivek Goyal 2009-09-13 18:54 ` Vivek Goyal
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