linux-kernel - Re: [PATCH] fs: push i_mutex and filemap_write_and

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Message-ID: <4E2B2E88.8080006@redhat.com>
Date:	Sat, 23 Jul 2011 16:26:48 -0400
From:	Josef Bacik <josef@...hat.com>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
CC:	linux-fsdevel@...r.kernel.org, hch@...radead.org,
	viro@...iv.linux.org.uk, jack@...e.cz,
	linux-kernel@...r.kernel.org, Dave Chinner <david@...morbit.com>,
	xfs@....sgi.com
Subject: Re: [PATCH] fs: push i_mutex and filemap_write_and_wait down into
 ->fsync() handlers

On 07/23/2011 02:09 PM, Markus Trippelsdorf wrote:
> On 2011.06.29 at 14:05 -0400, Josef Bacik wrote:
>> Btrfs needs to be able to control how filemap_write_and_wait_range() is called
>> in fsync to make it less of a painful operation, so push down taking i_mutex and
>> the calling of filemap_write_and_wait() down into the ->fsync() handlers.  Some
>> file systems can drop taking the i_mutex altogether it seems, like ext3 and
>> ocfs2.  For correctness sake I just pushed everything down in all cases to make
>> sure that we keep the current behavior the same for everybody, and then each
>> individual fs maintainer can make up their mind about what to do from there.
>
> At least the xfs part of this patch is broken.
> Running the latest git-kernel bogofilter doesn't work anymore on my xfs
> partition. When I run "bogoutil -d wordlist.db" to dump the contents of
> the database, it produces no output at all.
>

Already fixed and sent a patch out earlier this week.  Thanks,

Josef
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