linux-kernel - Re: [GIT PULL] block/io bits for 2.6.35-rc

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Message-ID: <AANLkTikKwoZKYsj2Nd98rIa8i947a-AlpEd47lkuHyro@mail.gmail.com>
Date:	Thu, 10 Jun 2010 09:55:10 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jens Axboe <jaxboe@...ionio.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@....de>,
	Dave Chinner <dchinner@...hat.com>
Subject: Re: [GIT PULL] block/io bits for 2.6.35-rc

On Thu, Jun 10, 2010 at 9:25 AM, Jens Axboe <jaxboe@...ionio.com> wrote:
>
> It's fixing a regression where umount takes a LONG time if you have
> a lot of dirty inodes, since it basically degenerates to a data
> integrity writeback instead of a simple WB_SYNC_NONE. If it wasn't
> fixing a nasty regression (the distros are all wanting a real fix
> for this, it's a user problem), I would not be submitting this code
> at this point in time.

I'm not sure if you noticed, we had a separate thread with Dave
Chinner that resulted in three hopefully fairly minimal patches going
in instead.

See commits

   git log -3  d87815cb2090

and I thought that last one (first one applied: "pay attention to
wbc->nr_to_write") was the one that had fixed the worst XFS issues.

But maybe it was an unrelated thing.

                 Linus
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