From: Jan Kara <jack-AlSwsSmVLrQ@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>,
Tahsin Erdogan <tahsin-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Jan Kara <jack-AlSwsSmVLrQ@public.gmane.org>,
Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Theodore Ts'o <tytso-3s7WtUTddSA@public.gmane.org>,
Nauman Rafique <nauman-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
lkml <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Jan Kara <jack-IBi9RG/b67k@public.gmane.org>,
Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
Subject: Re: [PATCH v2 block/for-linus] writeback: flush inode cgroup wb switches instead of pinning super_block
Date: Wed, 2 Mar 2016 11:29:41 +0100 [thread overview]
Message-ID: <20160302102941.GC19633@quack.suse.cz> (raw)
In-Reply-To: <CAOS58YO5vTBnM561np7gpXKGQELrT169bYqmcfvAvsquBJK5yw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Tue 01-03-16 12:50:19, Tejun Heo wrote:
> Hello, Jens.
>
> On Tue, Mar 1, 2016 at 12:46 PM, Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org> wrote:
> > I queued this up for 4.5, but I'm feeling a bit uneasy about it. But it's
> > either that, or revert 5ff8eaac1636 and fix it for real in 4.6. Jan/Tejun,
> > what do you think?
>
> Given that this only matters for cgroup writeback cases, this should
> still be fairly low impact, so I don't think it'd matter too much
> whether we fix this in this cycle or for 4.6. However, that also means
> that we're not risking much by doing it in this cycle, so I'd vote for
> doing it now.
Yeah, without CGROUP_WRITEBACK enabled this patch is NOP so I don't care
much when this gets merged.
Honza
--
Jan Kara <jack-IBi9RG/b67k@public.gmane.org>
SUSE Labs, CR
WARNING: multiple messages have this Message-ID (diff)
From: Jan Kara <jack@suse.cz>
To: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>, Tahsin Erdogan <tahsin@google.com>,
Jan Kara <jack@suse.cz>, Cgroups <cgroups@vger.kernel.org>,
"Theodore Ts'o" <tytso@mit.edu>,
Nauman Rafique <nauman@google.com>,
lkml <linux-kernel@vger.kernel.org>, Jan Kara <jack@suse.com>,
Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH v2 block/for-linus] writeback: flush inode cgroup wb switches instead of pinning super_block
Date: Wed, 2 Mar 2016 11:29:41 +0100 [thread overview]
Message-ID: <20160302102941.GC19633@quack.suse.cz> (raw)
In-Reply-To: <CAOS58YO5vTBnM561np7gpXKGQELrT169bYqmcfvAvsquBJK5yw@mail.gmail.com>
On Tue 01-03-16 12:50:19, Tejun Heo wrote:
> Hello, Jens.
>
> On Tue, Mar 1, 2016 at 12:46 PM, Jens Axboe <axboe@kernel.dk> wrote:
> > I queued this up for 4.5, but I'm feeling a bit uneasy about it. But it's
> > either that, or revert 5ff8eaac1636 and fix it for real in 4.6. Jan/Tejun,
> > what do you think?
>
> Given that this only matters for cgroup writeback cases, this should
> still be fairly low impact, so I don't think it'd matter too much
> whether we fix this in this cycle or for 4.6. However, that also means
> that we're not risking much by doing it in this cycle, so I'd vote for
> doing it now.
Yeah, without CGROUP_WRITEBACK enabled this patch is NOP so I don't care
much when this gets merged.
Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2016-03-02 10:29 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-12 19:32 [BUG] cgroup writeback crash Tahsin Erdogan
[not found] ` <CAAeU0aNCq7LGODvVGRU-oU_o-6enii5ey0p1c26D1ZzYwkDc5A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-02-15 21:00 ` Tejun Heo
[not found] ` <20160215210047.GN3965-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org>
2016-02-16 7:56 ` Tahsin Erdogan
[not found] ` <CAAeU0aNAd1Ra6LXmWwq8row4MD_BpVHiSXOwHx07m86UWREvHw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-02-16 18:24 ` [PATCH block/for-4.5-fixes] writeback: keep superblock pinned during cgroup writeback association switches Tejun Heo
2016-02-16 18:24 ` Tejun Heo
[not found] ` <20160216182457.GO3741-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2016-02-16 18:34 ` Jens Axboe
2016-02-16 18:34 ` Jens Axboe
2016-02-17 20:57 ` Jan Kara
2016-02-17 20:57 ` Jan Kara
[not found] ` <20160217205721.GE14140-+0h/O2h83AeN3ZZ/Hiejyg@public.gmane.org>
2016-02-17 21:07 ` Tejun Heo
2016-02-17 21:07 ` Tejun Heo
2016-02-17 22:30 ` Jan Kara
2016-02-17 22:41 ` Tahsin Erdogan
[not found] ` <CAAeU0aOvSwPbLPU0=20D1RExNj8VsbB38hUnyso2L8xNSQC0XA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-02-17 23:02 ` Tejun Heo
2016-02-17 23:02 ` Tejun Heo
2016-02-18 9:55 ` Jan Kara
[not found] ` <20160218095538.GA4338-+0h/O2h83AeN3ZZ/Hiejyg@public.gmane.org>
2016-02-18 13:00 ` Tejun Heo
2016-02-18 13:00 ` Tejun Heo
2016-02-18 13:20 ` Jan Kara
2016-02-19 20:18 ` Al Viro
2016-02-19 20:51 ` Tejun Heo
[not found] ` <20160219205147.GN13177-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2016-02-19 21:58 ` Al Viro
2016-02-19 21:58 ` Al Viro
[not found] ` <20160219215811.GA17997-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2016-02-19 22:15 ` Tejun Heo
2016-02-19 22:15 ` Tejun Heo
2016-02-19 22:26 ` Al Viro
[not found] ` <20160219222609.GC17997-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2016-02-28 21:53 ` Tejun Heo
2016-02-28 21:53 ` Tejun Heo
[not found] ` <20160217230231.GC6479-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2016-02-29 20:47 ` [PATCH block/for-linus] writeback: flush inode cgroup wb switches instead of pinning super_block Tejun Heo
2016-02-29 20:47 ` Tejun Heo
[not found] ` <20160229204724.GV3965-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org>
2016-02-29 20:54 ` Al Viro
2016-02-29 20:54 ` Al Viro
[not found] ` <20160229205428.GB17997-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2016-02-29 20:58 ` Tejun Heo
2016-02-29 20:58 ` Tejun Heo
[not found] ` <20160229205837.GX3965-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org>
2016-02-29 21:06 ` Al Viro
2016-02-29 21:06 ` Al Viro
[not found] ` <20160229210614.GC17997-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2016-02-29 21:08 ` Tejun Heo
2016-02-29 21:08 ` Tejun Heo
[not found] ` <20160229210800.GY3965-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org>
2016-02-29 21:21 ` Jan Kara
2016-02-29 21:21 ` Jan Kara
2016-02-29 23:28 ` [PATCH v2 " Tejun Heo
2016-02-29 23:28 ` Tejun Heo
2016-03-01 9:20 ` Jan Kara
2016-03-01 17:46 ` Jens Axboe
[not found] ` <56D5D592.2020800-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2016-03-01 17:50 ` Tejun Heo
2016-03-01 17:50 ` Tejun Heo
[not found] ` <CAOS58YO5vTBnM561np7gpXKGQELrT169bYqmcfvAvsquBJK5yw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-02 10:29 ` Jan Kara [this message]
2016-03-02 10:29 ` Jan Kara
2016-03-01 13:39 ` [PATCH " Tahsin Erdogan
2016-02-18 10:12 ` [PATCH block/for-4.5-fixes] writeback: keep superblock pinned during cgroup writeback association switches Nikolay Borisov
2016-02-18 10:12 ` Nikolay Borisov
2016-02-18 12:57 ` Tejun Heo
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