From: Michal Hocko <mhocko@kernel.org>
To: Chris Mason <clm@fb.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
Dave Chinner <david@fromorbit.com>,
"Theodore Ts'o" <tytso@mit.edu>,
linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org,
Jan Kara <jack@suse.cz>
Subject: Re: [RFC -v2 7/8] btrfs: Prevent from early transaction abort
Date: Tue, 18 Aug 2015 19:29:14 +0200 [thread overview]
Message-ID: <20150818172914.GO5033@dhcp22.suse.cz> (raw)
In-Reply-To: <20150818171144.GA5206@ret.DHCP.TheFacebook.com>
On Tue 18-08-15 13:11:44, Chris Mason wrote:
> On Tue, Aug 18, 2015 at 12:40:32PM +0200, Michal Hocko wrote:
> > From: Michal Hocko <mhocko@suse.com>
> >
> > Btrfs relies on GFP_NOFS allocation when commiting the transaction but
> > since "mm: page_alloc: do not lock up GFP_NOFS allocations upon OOM"
> > those allocations are allowed to fail which can lead to a pre-mature
> > transaction abort:
>
> I can either put the btrfs nofail ones on my pull for Linus, or you can
> add my sob and send as one unit. Just let me know how you'd rather do
> it.
OK, I will rephrase the changelogs (tomorrow) to not refer to an
unmerged patch and would appreciate if you can take them and route them
through your tree. I will then drop them from my pile.
Thanks.
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2015-08-18 17:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-05 9:51 [RFC 0/8] Allow GFP_NOFS allocation to fail mhocko
2015-08-05 9:51 ` [RFC 1/8] mm, oom: Give __GFP_NOFAIL allocations access to memory reserves mhocko
2015-08-05 9:51 ` [RFC 2/8] mm: Allow GFP_IOFS for page_cache_read page cache allocation mhocko
2015-08-05 9:51 ` [RFC 3/8] mm: page_alloc: do not lock up GFP_NOFS allocations upon OOM mhocko
2015-08-05 9:51 ` [RFC 4/8] jbd, jbd2: Do not fail journal because of frozen_buffer allocation failure mhocko
2015-08-05 11:42 ` Jan Kara
2015-08-05 16:49 ` Greg Thelen
2015-08-12 9:14 ` Michal Hocko
2015-08-15 13:54 ` Theodore Ts'o
2015-08-18 10:36 ` Michal Hocko
2015-08-24 12:06 ` Michal Hocko
2015-08-18 10:38 ` [RFC -v2 " Michal Hocko
2015-08-05 9:51 ` [RFC 5/8] ext4: Do not fail journal due to block allocator mhocko
2015-08-05 11:43 ` Jan Kara
2015-08-18 10:39 ` [RFC -v2 " Michal Hocko
2015-08-18 10:55 ` Michal Hocko
2015-08-05 9:51 ` [RFC 6/8] ext3: Do not abort journal prematurely mhocko
2015-08-18 10:39 ` [RFC -v2 " Michal Hocko
2015-08-05 9:51 ` [RFC 7/8] btrfs: Prevent from early transaction abort mhocko
2015-08-05 16:31 ` David Sterba
2015-08-18 10:40 ` [RFC -v2 " Michal Hocko
2015-08-18 11:01 ` Michal Hocko
2015-08-18 17:11 ` Chris Mason
2015-08-18 17:29 ` Michal Hocko [this message]
2015-08-19 12:26 ` Michal Hocko
2015-08-05 9:51 ` [RFC 8/8] btrfs: use __GFP_NOFAIL in alloc_btrfs_bio mhocko
2015-08-05 16:32 ` David Sterba
2015-08-18 10:41 ` [RFC -v2 " Michal Hocko
2015-08-05 19:58 ` [RFC 0/8] Allow GFP_NOFS allocation to fail Andreas Dilger
2015-08-06 14:34 ` Michal Hocko
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