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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
	Christoph Hellwig <hch@infradead.org>, Jan Kara <jack@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: xfstests 073 regression
Date: Sun, 31 Jul 2011 15:40:20 -1000	[thread overview]
Message-ID: <CA+55aFwtfUeUn=MuqSEyPiPeC5=k2xK2ULd9-5ShQAJ=4T0CvQ@mail.gmail.com> (raw)
In-Reply-To: <20110801012813.GR5404@dastard>

On Sun, Jul 31, 2011 at 3:28 PM, Dave Chinner <david@fromorbit.com> wrote:
>
> IOWs, what I'm asking is whether this "just move the inodes one at a
> time to a different queue" is just a bandaid for a particular
> symptom of a deeper problem we haven't realised existed....

Deeper problems in writeback? Unpossible.

The writeback code has pretty much always been just a collection of
"bandaids for particular symptoms of deeper problems".  So let's just
say I'd not be shocked. But what else would you suggest? You could
just break out of the loop if you can't get the read lock, but while
the *common* case is likely that a lot of the inodes are on the same
filesystem, that's certainly not the only possible case.

                 Linus

  reply	other threads:[~2011-08-01  1:40 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-28 16:41 xfstests 073 regression Christoph Hellwig
2011-07-29 14:21 ` Wu Fengguang
2011-07-30 13:44   ` Christoph Hellwig
2011-07-31  9:09     ` Wu Fengguang
2011-07-31 11:05       ` Wu Fengguang
2011-07-31 11:28       ` Dave Chinner
2011-07-31 15:10     ` Wu Fengguang
2011-07-31 15:14       ` [GIT PULL] fix xfstests 073 regression for 3.1-rc1 Wu Fengguang
2011-07-31 23:47       ` xfstests 073 regression Dave Chinner
2011-08-01  0:25         ` Linus Torvalds
2011-08-01  1:28           ` Dave Chinner
2011-08-01  1:40             ` Linus Torvalds [this message]
2011-08-01  2:09               ` Dave Chinner
2011-08-01  2:21                 ` Linus Torvalds
2011-08-01  5:52                 ` Wu Fengguang
2011-08-01 16:44                   ` Christoph Hellwig
2011-08-01 11:23                 ` Christoph Hellwig
2011-08-01 16:52                   ` Christoph Hellwig
2011-08-02 11:44                     ` Wu Fengguang
2011-08-02 12:04                       ` Christoph Hellwig
2011-08-02 12:04                       ` Dave Chinner
2011-08-02 12:16                         ` Wu Fengguang
2011-08-02 12:26                           ` Wu Fengguang
2011-08-02 12:05                       ` Wu Fengguang
2011-08-01  5:24         ` Wu Fengguang

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