linux-kernel - Re: [PATCH 0/10] Fix page_mkwrite() for blocksize

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Message-ID: <20090615181753.GA26615@skywalker>
Date:	Mon, 15 Jun 2009 23:47:53 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	Jan Kara <jack@...e.cz>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, npiggin@...e.de
Subject: Re: [PATCH 0/10] Fix page_mkwrite() for blocksize < pagesize
	(version 3)

On Mon, Jun 15, 2009 at 07:59:47PM +0200, Jan Kara wrote:
> 
> patches below are an attempt to solve problems filesystems have with
> page_mkwrite() when blocksize < pagesize (see the changelog of the second patch
> for details).
> 
> Could someone please review them so that they can get merged - especially the
> generic VFS/MM part? It fixes observed problems (WARN_ON triggers) for ext4 and
> makes ext2/ext3 behave more nicely (mmapped write getting page fault instead
> of silently discarding data).


Will you be able to send it as two series.

a) One that fix the blocksize < page size bug
b) making ext2/3 mmaped write give better allocation pattern.

Doing that will make sure (a) can go in this merge window. There are
other ext4 fixes waiting for (a) to be merged in.


> 
> The series is against Linus's tree from today. The differences against previous
> version are one bugfix in ext3 delalloc implementation... Please test and review.
> Thanks.

-aneesh
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