From: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> To: Gui Jianfeng <guijianfeng-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> Cc: dhaval-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jens.axboe-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, paolo.valente-rcYM44yAMweonA0d6jMUrA@public.gmane.org, fernando-gVGce1chcLdL9jVzuh4AOg@public.gmane.org, jmoyer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, fchecconi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, righi.andrea-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Subject: Re: [PATCH] io-controller: Add io group reference handling for request Date: Fri, 8 May 2009 09:57:24 -0400 [thread overview] Message-ID: <20090508135724.GE7293@redhat.com> (raw) In-Reply-To: <4A03FF3C.4020506-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> On Fri, May 08, 2009 at 05:45:32PM +0800, Gui Jianfeng wrote: > Hi Vivek, > > This patch adds io group reference handling when allocating > and removing a request. > Hi Gui, Thanks for the patch. We were thinking that requests can take a reference on io queues and io queues can take a reference on io groups. That should make sure that io groups don't go away as long as active requests are present. But there seems to be a small window while allocating the new request where request gets allocated from a group first and then later it is mapped to that group and queue is created. IOW, in get_request_wait(), we allocate a request from a particular group and set rq->rl, then drop the queue lock and later call elv_set_request() which again maps the request to the group saves rq->iog and creates new queue. This window is troublesome because request can be mapped to a particular group at the time of allocation and during set_request() it can go to a different group as queue lock was dropped and group might have disappeared. In this case probably it might make sense that request also takes a reference on groups. At the same time it looks too much that request takes a reference on queue as well as group object. Ideas are welcome on how to handle it... Thanks Vivek > Signed-off-by: Gui Jianfeng <guijianfeng-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> > --- > elevator-fq.c | 15 ++++++++++++++- > elevator-fq.h | 5 +++++ > elevator.c | 2 ++ > 3 files changed, 21 insertions(+), 1 deletion(-) > > diff --git a/block/elevator-fq.c b/block/elevator-fq.c > index 9500619..e6d6712 100644 > --- a/block/elevator-fq.c > +++ b/block/elevator-fq.c > @@ -1968,11 +1968,24 @@ void elv_fq_set_request_io_group(struct request_queue *q, struct request *rq, > spin_unlock_irqrestore(q->queue_lock, flags); > BUG_ON(!iog); > > - /* Store iog in rq. TODO: take care of referencing */ > + elv_get_iog(iog); > rq->iog = iog; > } > > /* > + * This request has been serviced. Clean up iog info and drop the reference. > + */ > +void elv_fq_unset_request_io_group(struct request *rq) > +{ > + struct io_group *iog = rq->iog; > + > + if (iog) { > + rq->iog = NULL; > + elv_put_iog(iog); > + } > +} > + > +/* > * Find/Create the io queue the rq should go in. This is an optimization > * for the io schedulers (noop, deadline and AS) which maintain only single > * io queue per cgroup. In this case common layer can just maintain a > diff --git a/block/elevator-fq.h b/block/elevator-fq.h > index db3a347..96a28e9 100644 > --- a/block/elevator-fq.h > +++ b/block/elevator-fq.h > @@ -512,6 +512,7 @@ static inline struct io_group *ioq_to_io_group(struct io_queue *ioq) > extern int io_group_allow_merge(struct request *rq, struct bio *bio); > extern void elv_fq_set_request_io_group(struct request_queue *q, > struct request *rq, struct bio *bio); > +extern void elv_fq_unset_request_io_group(struct request *rq); > static inline bfq_weight_t iog_weight(struct io_group *iog) > { > return iog->entity.weight; > @@ -571,6 +572,10 @@ static inline void elv_fq_set_request_io_group(struct request_queue *q, > { > } > > +static inline void elv_fq_unset_request_io_group(struct request *rq) > +{ > +} > + > static inline bfq_weight_t iog_weight(struct io_group *iog) > { > /* Just root group is present and weight is immaterial. */ > diff --git a/block/elevator.c b/block/elevator.c > index 44c9fad..d75eec7 100644 > --- a/block/elevator.c > +++ b/block/elevator.c > @@ -992,6 +992,8 @@ void elv_put_request(struct request_queue *q, struct request *rq) > { > struct elevator_queue *e = q->elevator; > > + elv_fq_unset_request_io_group(rq); > + > /* > * Optimization for noop, deadline and AS which maintain only single > * ioq per io group >
WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com> To: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Cc: nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com, mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it, jens.axboe@oracle.com, 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, linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, righi.andrea@gmail.com, agk@redhat.com, dm-devel@redhat.com, snitzer@redhat.com, m-ikeda@ds.jp.nec.com, akpm@linux-foundation.org Subject: Re: [PATCH] io-controller: Add io group reference handling for request Date: Fri, 8 May 2009 09:57:24 -0400 [thread overview] Message-ID: <20090508135724.GE7293@redhat.com> (raw) In-Reply-To: <4A03FF3C.4020506@cn.fujitsu.com> On Fri, May 08, 2009 at 05:45:32PM +0800, Gui Jianfeng wrote: > Hi Vivek, > > This patch adds io group reference handling when allocating > and removing a request. > Hi Gui, Thanks for the patch. We were thinking that requests can take a reference on io queues and io queues can take a reference on io groups. That should make sure that io groups don't go away as long as active requests are present. But there seems to be a small window while allocating the new request where request gets allocated from a group first and then later it is mapped to that group and queue is created. IOW, in get_request_wait(), we allocate a request from a particular group and set rq->rl, then drop the queue lock and later call elv_set_request() which again maps the request to the group saves rq->iog and creates new queue. This window is troublesome because request can be mapped to a particular group at the time of allocation and during set_request() it can go to a different group as queue lock was dropped and group might have disappeared. In this case probably it might make sense that request also takes a reference on groups. At the same time it looks too much that request takes a reference on queue as well as group object. Ideas are welcome on how to handle it... Thanks Vivek > Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> > --- > elevator-fq.c | 15 ++++++++++++++- > elevator-fq.h | 5 +++++ > elevator.c | 2 ++ > 3 files changed, 21 insertions(+), 1 deletion(-) > > diff --git a/block/elevator-fq.c b/block/elevator-fq.c > index 9500619..e6d6712 100644 > --- a/block/elevator-fq.c > +++ b/block/elevator-fq.c > @@ -1968,11 +1968,24 @@ void elv_fq_set_request_io_group(struct request_queue *q, struct request *rq, > spin_unlock_irqrestore(q->queue_lock, flags); > BUG_ON(!iog); > > - /* Store iog in rq. TODO: take care of referencing */ > + elv_get_iog(iog); > rq->iog = iog; > } > > /* > + * This request has been serviced. Clean up iog info and drop the reference. > + */ > +void elv_fq_unset_request_io_group(struct request *rq) > +{ > + struct io_group *iog = rq->iog; > + > + if (iog) { > + rq->iog = NULL; > + elv_put_iog(iog); > + } > +} > + > +/* > * Find/Create the io queue the rq should go in. This is an optimization > * for the io schedulers (noop, deadline and AS) which maintain only single > * io queue per cgroup. In this case common layer can just maintain a > diff --git a/block/elevator-fq.h b/block/elevator-fq.h > index db3a347..96a28e9 100644 > --- a/block/elevator-fq.h > +++ b/block/elevator-fq.h > @@ -512,6 +512,7 @@ static inline struct io_group *ioq_to_io_group(struct io_queue *ioq) > extern int io_group_allow_merge(struct request *rq, struct bio *bio); > extern void elv_fq_set_request_io_group(struct request_queue *q, > struct request *rq, struct bio *bio); > +extern void elv_fq_unset_request_io_group(struct request *rq); > static inline bfq_weight_t iog_weight(struct io_group *iog) > { > return iog->entity.weight; > @@ -571,6 +572,10 @@ static inline void elv_fq_set_request_io_group(struct request_queue *q, > { > } > > +static inline void elv_fq_unset_request_io_group(struct request *rq) > +{ > +} > + > static inline bfq_weight_t iog_weight(struct io_group *iog) > { > /* Just root group is present and weight is immaterial. */ > diff --git a/block/elevator.c b/block/elevator.c > index 44c9fad..d75eec7 100644 > --- a/block/elevator.c > +++ b/block/elevator.c > @@ -992,6 +992,8 @@ void elv_put_request(struct request_queue *q, struct request *rq) > { > struct elevator_queue *e = q->elevator; > > + elv_fq_unset_request_io_group(rq); > + > /* > * Optimization for noop, deadline and AS which maintain only single > * ioq per io group >
next prev parent reply other threads:[~2009-05-08 13:57 UTC|newest] Thread overview: 295+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-05-05 19:58 IO scheduler based IO Controller V2 Vivek Goyal 2009-05-05 19:58 ` [PATCH 01/18] io-controller: Documentation Vivek Goyal 2009-05-06 3:16 ` Gui Jianfeng [not found] ` <4A0100F4.4040400-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-06 13:31 ` Vivek Goyal 2009-05-06 13:31 ` Vivek Goyal [not found] ` <1241553525-28095-2-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 3:16 ` Gui Jianfeng 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 02/18] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` [PATCH 03/18] io-controller: Charge for time slice based on average disk rate Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 04/18] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal [not found] ` <1241553525-28095-5-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-22 8:54 ` Gui Jianfeng 2009-05-22 8:54 ` Gui Jianfeng [not found] ` <4A166829.6070608-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-22 12:33 ` Vivek Goyal 2009-05-22 12:33 ` Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 05/18] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-07 7:42 ` Gui Jianfeng 2009-05-07 8:05 ` Li Zefan [not found] ` <4A0290ED.7080506-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-07 8:05 ` Li Zefan 2009-05-08 12:45 ` Vivek Goyal 2009-05-08 12:45 ` Vivek Goyal [not found] ` <1241553525-28095-6-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 7:42 ` Gui Jianfeng 2009-05-08 21:09 ` Andrea Righi 2009-05-08 21:09 ` Andrea Righi 2009-05-08 21:17 ` Vivek Goyal 2009-05-08 21:17 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 06/18] io-controller: cfq changes to use " Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 07/18] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-13 2:39 ` Gui Jianfeng [not found] ` <4A0A32CB.4020609-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-13 14:51 ` Vivek Goyal 2009-05-13 14:51 ` Vivek Goyal 2009-05-14 7:53 ` Gui Jianfeng [not found] ` <20090513145127.GB7696-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 7:53 ` Gui Jianfeng [not found] ` <1241553525-28095-8-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-13 2:39 ` Gui Jianfeng 2009-05-05 19:58 ` [PATCH 08/18] io-controller: idle for sometime on sync queue before expiring it Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-13 15:00 ` Vivek Goyal 2009-05-13 15:00 ` Vivek Goyal 2009-06-09 7:56 ` Gui Jianfeng 2009-06-09 17:51 ` Vivek Goyal 2009-06-09 17:51 ` Vivek Goyal [not found] ` <20090609175131.GB13476-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-06-10 1:30 ` Gui Jianfeng 2009-06-10 1:30 ` Gui Jianfeng 2009-06-10 1:30 ` Gui Jianfeng 2009-06-10 13:26 ` Vivek Goyal 2009-06-10 13:26 ` Vivek Goyal 2009-06-11 1:22 ` Gui Jianfeng 2009-06-11 1:22 ` Gui Jianfeng [not found] ` <20090610132638.GB19680-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-06-11 1:22 ` Gui Jianfeng [not found] ` <4A2F0CBE.8030208-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-06-10 13:26 ` Vivek Goyal [not found] ` <4A2E15B6.8030001-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-06-09 17:51 ` Vivek Goyal [not found] ` <1241553525-28095-9-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-13 15:00 ` Vivek Goyal 2009-06-09 7:56 ` Gui Jianfeng 2009-05-05 19:58 ` [PATCH 09/18] io-controller: Separate out queue and data Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 10/18] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-05-05 19:58 ` [PATCH 11/18] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 12/18] io-controller: deadline " Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 13/18] io-controller: anticipatory " Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 14/18] blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 15/18] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 16/18] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 17/18] io-controller: IO group refcounting support Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal [not found] ` <1241553525-28095-18-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 2:59 ` Gui Jianfeng 2009-05-08 2:59 ` Gui Jianfeng 2009-05-08 12:44 ` Vivek Goyal [not found] ` <4A03A013.9000405-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-08 12:44 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 18/18] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-06 21:40 ` IKEDA, Munehiro [not found] ` <4A0203DB.1090809-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-05-06 21:58 ` Vivek Goyal 2009-05-06 21:58 ` Vivek Goyal [not found] ` <20090506215833.GK8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 22:19 ` IKEDA, Munehiro 2009-05-06 22:19 ` IKEDA, Munehiro [not found] ` <4A020CD5.2000308-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-05-06 22:24 ` Vivek Goyal 2009-05-06 22:24 ` Vivek Goyal [not found] ` <20090506222458.GM8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 23:01 ` IKEDA, Munehiro 2009-05-06 23:01 ` IKEDA, Munehiro [not found] ` <1241553525-28095-19-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 21:40 ` IKEDA, Munehiro [not found] ` <1241553525-28095-1-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-05 19:58 ` [PATCH 01/18] io-controller: Documentation Vivek Goyal 2009-05-05 19:58 ` [PATCH 02/18] io-controller: Common flat fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-22 6:43 ` Gui Jianfeng 2009-05-22 12:32 ` Vivek Goyal 2009-05-23 20:04 ` Jens Axboe [not found] ` <20090522123231.GA14972-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-23 20:04 ` Jens Axboe [not found] ` <4A164978.1020604-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-22 12:32 ` Vivek Goyal [not found] ` <1241553525-28095-3-git-send-email-vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-22 6:43 ` Gui Jianfeng 2009-05-05 19:58 ` [PATCH 03/18] io-controller: Charge for time slice based on average disk rate Vivek Goyal 2009-05-05 19:58 ` [PATCH 04/18] io-controller: Modify cfq to make use of flat elevator fair queuing Vivek Goyal 2009-05-05 19:58 ` [PATCH 05/18] io-controller: Common hierarchical fair queuing code in elevaotor layer Vivek Goyal 2009-05-05 19:58 ` [PATCH 06/18] io-controller: cfq changes to use " Vivek Goyal 2009-05-05 19:58 ` [PATCH 07/18] io-controller: Export disk time used and nr sectors dipatched through cgroups Vivek Goyal 2009-05-05 19:58 ` [PATCH 08/18] io-controller: idle for sometime on sync queue before expiring it Vivek Goyal 2009-05-05 19:58 ` [PATCH 09/18] io-controller: Separate out queue and data Vivek Goyal 2009-05-05 19:58 ` [PATCH 10/18] io-conroller: Prepare elevator layer for single queue schedulers Vivek Goyal 2009-05-05 19:58 ` Vivek Goyal 2009-05-05 19:58 ` [PATCH 11/18] io-controller: noop changes for hierarchical fair queuing Vivek Goyal 2009-05-05 19:58 ` [PATCH 12/18] io-controller: deadline " Vivek Goyal 2009-05-05 19:58 ` [PATCH 13/18] io-controller: anticipatory " Vivek Goyal 2009-05-05 19:58 ` [PATCH 14/18] blkio_cgroup patches from Ryo to track async bios Vivek Goyal 2009-05-05 19:58 ` [PATCH 15/18] io-controller: map async requests to appropriate cgroup Vivek Goyal 2009-05-05 19:58 ` [PATCH 16/18] io-controller: Per cgroup request descriptor support Vivek Goyal 2009-05-05 19:58 ` [PATCH 17/18] io-controller: IO group refcounting support Vivek Goyal 2009-05-05 19:58 ` [PATCH 18/18] io-controller: Debug hierarchical IO scheduling Vivek Goyal 2009-05-05 20:24 ` IO scheduler based IO Controller V2 Andrew Morton 2009-05-05 20:24 ` Andrew Morton 2009-05-05 22:20 ` Peter Zijlstra 2009-05-06 3:42 ` Balbir Singh 2009-05-06 3:42 ` Balbir Singh 2009-05-06 10:20 ` Fabio Checconi 2009-05-06 17:10 ` Balbir Singh 2009-05-06 17:10 ` Balbir Singh [not found] ` <20090506102030.GB20544-f9ZlEuEWxVeACYmtYXMKmw@public.gmane.org> 2009-05-06 17:10 ` Balbir Singh 2009-05-06 18:47 ` Divyesh Shah [not found] ` <20090506034254.GD4416-SINUvgVNF2CyUtPGxGje5AC/G2K4zDHf@public.gmane.org> 2009-05-06 10:20 ` Fabio Checconi 2009-05-06 18:47 ` Divyesh Shah 2009-05-06 20:42 ` Andrea Righi 2009-05-06 20:42 ` Andrea Righi 2009-05-06 2:33 ` Vivek Goyal 2009-05-06 17:59 ` Nauman Rafique 2009-05-06 20:07 ` Andrea Righi 2009-05-06 21:21 ` Vivek Goyal 2009-05-06 21:21 ` Vivek Goyal [not found] ` <20090506212121.GI8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 22:02 ` Andrea Righi 2009-05-06 22:02 ` Andrea Righi 2009-05-06 22:17 ` Vivek Goyal 2009-05-06 22:17 ` Vivek Goyal [not found] ` <20090506023332.GA1212-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 17:59 ` Nauman Rafique 2009-05-06 20:07 ` Andrea Righi 2009-05-06 20:32 ` Vivek Goyal 2009-05-07 0:18 ` Ryo Tsuruta 2009-05-06 20:32 ` Vivek Goyal [not found] ` <20090506203228.GH8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 21:34 ` Andrea Righi 2009-05-06 21:34 ` Andrea Righi 2009-05-06 21:52 ` Vivek Goyal 2009-05-06 21:52 ` Vivek Goyal 2009-05-06 22:35 ` Andrea Righi 2009-05-07 1:48 ` Ryo Tsuruta 2009-05-07 1:48 ` Ryo Tsuruta [not found] ` <20090506215235.GJ8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-06 22:35 ` Andrea Righi 2009-05-07 9:04 ` Andrea Righi 2009-05-07 9:04 ` Andrea Righi 2009-05-07 12:22 ` Andrea Righi 2009-05-07 12:22 ` Andrea Righi 2009-05-07 14:11 ` Vivek Goyal 2009-05-07 14:11 ` Vivek Goyal [not found] ` <20090507141126.GA9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 14:45 ` Vivek Goyal 2009-05-07 14:45 ` Vivek Goyal [not found] ` <20090507144501.GB9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 15:36 ` Vivek Goyal 2009-05-07 15:36 ` Vivek Goyal [not found] ` <20090507153642.GC9463-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 15:42 ` Vivek Goyal 2009-05-07 15:42 ` Vivek Goyal 2009-05-07 22:19 ` Andrea Righi 2009-05-07 22:19 ` Andrea Righi 2009-05-08 18:09 ` Vivek Goyal 2009-05-08 20:05 ` Andrea Righi 2009-05-08 21:56 ` Vivek Goyal 2009-05-08 21:56 ` Vivek Goyal 2009-05-09 9:22 ` Peter Zijlstra 2009-05-14 10:31 ` Andrea Righi [not found] ` <20090508215618.GJ7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-09 9:22 ` Peter Zijlstra 2009-05-14 10:31 ` Andrea Righi 2009-05-14 16:43 ` Dhaval Giani 2009-05-14 16:43 ` Dhaval Giani [not found] ` <20090508180951.GG7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 20:05 ` Andrea Righi 2009-05-08 18:09 ` Vivek Goyal 2009-05-07 22:40 ` Andrea Righi 2009-05-07 22:40 ` Andrea Righi 2009-05-07 0:18 ` Ryo Tsuruta [not found] ` <20090507.091858.226775723.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-07 1:25 ` Vivek Goyal 2009-05-07 1:25 ` Vivek Goyal [not found] ` <20090507012559.GC4187-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-11 11:23 ` Ryo Tsuruta 2009-05-11 11:23 ` Ryo Tsuruta [not found] ` <20090511.202309.112614168.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-11 12:49 ` Vivek Goyal 2009-05-11 12:49 ` Vivek Goyal 2009-05-08 14:24 ` Rik van Riel 2009-05-08 14:24 ` Rik van Riel [not found] ` <4A0440B2.7040300-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-11 10:11 ` Ryo Tsuruta 2009-05-11 10:11 ` Ryo Tsuruta [not found] ` <20090505132441.1705bfad.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> 2009-05-05 22:20 ` Peter Zijlstra 2009-05-06 2:33 ` Vivek Goyal 2009-05-06 3:41 ` Balbir Singh 2009-05-06 3:41 ` Balbir Singh 2009-05-06 13:28 ` Vivek Goyal 2009-05-06 13:28 ` Vivek Goyal [not found] ` <20090506034118.GC4416-SINUvgVNF2CyUtPGxGje5AC/G2K4zDHf@public.gmane.org> 2009-05-06 13:28 ` Vivek Goyal 2009-05-06 8:11 ` Gui Jianfeng 2009-05-08 9:45 ` [PATCH] io-controller: Add io group reference handling for request Gui Jianfeng 2009-05-13 2:00 ` [PATCH] IO Controller: Add per-device weight and ioprio_class handling Gui Jianfeng 2009-05-06 8:11 ` IO scheduler based IO Controller V2 Gui Jianfeng [not found] ` <4A014619.1040000-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-06 16:10 ` Vivek Goyal 2009-05-06 16:10 ` Vivek Goyal 2009-05-07 5:36 ` Li Zefan [not found] ` <4A027348.6000808-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-08 13:37 ` Vivek Goyal 2009-05-08 13:37 ` Vivek Goyal 2009-05-11 2:59 ` Gui Jianfeng [not found] ` <20090508133740.GD7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-11 2:59 ` Gui Jianfeng 2009-05-07 5:47 ` Gui Jianfeng [not found] ` <20090506161012.GC8180-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-07 5:36 ` Li Zefan 2009-05-07 5:47 ` Gui Jianfeng 2009-05-08 9:45 ` [PATCH] io-controller: Add io group reference handling for request Gui Jianfeng [not found] ` <4A03FF3C.4020506-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-08 13:57 ` Vivek Goyal [this message] 2009-05-08 13:57 ` Vivek Goyal [not found] ` <20090508135724.GE7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 17:41 ` Nauman Rafique 2009-05-08 17:41 ` Nauman Rafique 2009-05-08 17:41 ` Nauman Rafique 2009-05-08 18:56 ` Vivek Goyal [not found] ` <20090508185644.GH7293-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-08 19:06 ` Nauman Rafique 2009-05-08 19:06 ` Nauman Rafique 2009-05-08 19:06 ` Nauman Rafique 2009-05-11 1:33 ` Gui Jianfeng 2009-05-11 15:41 ` Vivek Goyal [not found] ` <20090511154127.GD6036-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-15 5:15 ` Gui Jianfeng 2009-05-15 5:15 ` Gui Jianfeng 2009-05-15 7:48 ` Andrea Righi 2009-05-15 8:16 ` Gui Jianfeng 2009-05-15 8:16 ` Gui Jianfeng [not found] ` <4A0D24E6.6010807-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-15 14:09 ` Vivek Goyal 2009-05-15 14:09 ` Vivek Goyal 2009-05-15 14:06 ` Vivek Goyal 2009-05-15 14:06 ` Vivek Goyal 2009-05-17 10:26 ` Andrea Righi 2009-05-18 14:01 ` Vivek Goyal 2009-05-18 14:01 ` Vivek Goyal 2009-05-18 14:39 ` Andrea Righi 2009-05-26 11:34 ` Ryo Tsuruta 2009-05-26 11:34 ` Ryo Tsuruta 2009-05-27 6:56 ` Ryo Tsuruta 2009-05-27 6:56 ` Ryo Tsuruta 2009-05-27 8:17 ` Andrea Righi 2009-05-27 8:17 ` Andrea Righi 2009-05-27 11:53 ` Ryo Tsuruta 2009-05-27 11:53 ` Ryo Tsuruta 2009-05-27 17:32 ` Vivek Goyal 2009-05-27 17:32 ` Vivek Goyal [not found] ` <20090527.155631.226800550.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-27 8:17 ` Andrea Righi 2009-05-27 17:32 ` Vivek Goyal [not found] ` <20090526.203424.39179999.ryov-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org> 2009-05-27 6:56 ` Ryo Tsuruta 2009-05-19 12:18 ` Ryo Tsuruta [not found] ` <20090518140114.GB27080-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-18 14:39 ` Andrea Righi 2009-05-19 12:18 ` Ryo Tsuruta [not found] ` <20090515140643.GB19350-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-17 10:26 ` Andrea Righi [not found] ` <4A0CFA6C.3080609-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-15 7:48 ` Andrea Righi 2009-05-15 7:40 ` Gui Jianfeng 2009-05-15 7:40 ` Gui Jianfeng 2009-05-15 14:01 ` Vivek Goyal [not found] ` <4A0D1C55.9040700-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-15 14:01 ` Vivek Goyal [not found] ` <4A078051.5060702-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-11 15:41 ` Vivek Goyal [not found] ` <e98e18940905081041r386e52a5q5a2b1f13f1e8c634-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2009-05-08 18:56 ` Vivek Goyal 2009-05-11 1:33 ` Gui Jianfeng 2009-05-13 2:00 ` [PATCH] IO Controller: Add per-device weight and ioprio_class handling Gui Jianfeng 2009-05-13 14:44 ` Vivek Goyal [not found] ` <20090513144432.GA7696-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 0:59 ` Gui Jianfeng 2009-05-14 0:59 ` Gui Jianfeng 2009-05-13 15:29 ` Vivek Goyal 2009-05-14 1:02 ` Gui Jianfeng [not found] ` <20090513152909.GD7696-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:02 ` Gui Jianfeng 2009-05-13 15:59 ` Vivek Goyal 2009-05-14 1:51 ` Gui Jianfeng [not found] ` <20090513155900.GA15623-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:51 ` Gui Jianfeng 2009-05-14 2:25 ` Gui Jianfeng 2009-05-14 2:25 ` Gui Jianfeng [not found] ` <4A0A29B5.7030109-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-13 14:44 ` Vivek Goyal 2009-05-13 15:29 ` Vivek Goyal 2009-05-13 15:59 ` Vivek Goyal 2009-05-13 17:17 ` Vivek Goyal 2009-05-13 19:09 ` Vivek Goyal 2009-05-13 17:17 ` Vivek Goyal [not found] ` <20090513171734.GA18371-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:24 ` Gui Jianfeng 2009-05-14 1:24 ` Gui Jianfeng 2009-05-13 19:09 ` Vivek Goyal 2009-05-14 1:35 ` Gui Jianfeng [not found] ` <20090513190929.GB18371-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2009-05-14 1:35 ` Gui Jianfeng 2009-05-14 7:26 ` Gui Jianfeng 2009-05-14 7:26 ` Gui Jianfeng 2009-05-14 15:15 ` Vivek Goyal 2009-05-18 22:33 ` IKEDA, Munehiro 2009-05-20 1:44 ` Gui Jianfeng [not found] ` <4A136090.5090705-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-20 15:41 ` IKEDA, Munehiro 2009-05-20 15:41 ` IKEDA, Munehiro [not found] ` <4A11E244.2000305-MDRzhb/z0dd8UrSeD/g0lQ@public.gmane.org> 2009-05-20 1:44 ` Gui Jianfeng [not found] ` <4A0BC7AB.8030703-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> 2009-05-14 15:15 ` Vivek Goyal 2009-05-18 22:33 ` IKEDA, Munehiro
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