linux-kernel - Re: ext4 extent status tree LRU locking

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Date:	Tue, 18 Jun 2013 11:49:31 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Theodore Ts'o <tytso@....edu>, Dave Hansen <dave.hansen@...el.com>,
	linux-ext4@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Jan kara <jack@...e.cz>
Subject: Re: ext4 extent status tree LRU locking

On Mon, Jun 17, 2013 at 10:51:34PM -0400, Theodore Ts'o wrote:
> On Tue, Jun 18, 2013 at 10:25:48AM +0800, Zheng Liu wrote:
> > Ah, sorry, I forgot to mention that this patch bases against ext4/master
> > branch.  Now ext4/dev branch has some regression when I run xfstests.
> 
> What regressions are you seeing?

generic/300.

When I try to test my patch, I know that there has a report that
invalidate page range patch set causes a regression, and I am not sure
whether invalidate page range patch set causes it or not.  So I decide
to generate my patch against ext4/master.  So, don't worry. :-)

BTW, I will run xfstests this week.  If I meet any regression, I will
let you know.

> 
> > Ted, I notice that now in ext4 tree we have 'dev', 'dev-with-revert',
> > and 'dev2' branches.  Which one is the best to generate a new patch for
> > the next merge window?
> 
> Either the dev branch or the master branch.   
> 
> The dev-with-revert and dev2 were branches that I had created when
> investigating a potential regression with the invalidage page range
> patch set.  I've since determined that it's a timing issue and it's
> not a new regression --- we've had xfstests failures with test
> generic/300 for a while now.

Thanks for pointing it out.

                                                - Zheng
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