From: Ben Myers <bpm@sgi.com>
To: Jan Kara <jack@suse.cz>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH] xfs: Fix WARN_ON(delalloc) in xfs_vm_releasepage()
Date: Fri, 22 Mar 2013 18:18:57 -0500 [thread overview]
Message-ID: <20130322231857.GR22182@sgi.com> (raw)
In-Reply-To: <1363267854-25602-1-git-send-email-jack@suse.cz>
On Thu, Mar 14, 2013 at 02:30:54PM +0100, Jan Kara wrote:
> When a dirty page is truncated from a file but reclaim gets to it before
> truncate_inode_pages(), we hit WARN_ON(delalloc) in
> xfs_vm_releasepage(). This is because reclaim tries to write the page,
> xfs_vm_writepage() just bails out (leaving page clean) and thus reclaim
> thinks it can continue and calls xfs_vm_releasepage() on page with dirty
> buffers.
>
> Fix the issue by redirtying the page in xfs_vm_writepage(). This makes
> reclaim stop reclaiming the page and also logically it keeps page in a
> more consistent state where page with dirty buffers has PageDirty set.
>
> Signed-off-by: Jan Kara <jack@suse.cz>
Applied.
Regards,
Ben
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prev parent reply other threads:[~2013-03-22 23:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-14 13:30 [PATCH] xfs: Fix WARN_ON(delalloc) in xfs_vm_releasepage() Jan Kara
2013-03-14 20:21 ` Carlos Maiolino
2013-03-15 20:52 ` Ben Myers
2013-03-18 16:05 ` Jan Kara
2013-03-19 3:47 ` Dave Chinner
2013-03-19 15:42 ` Jan Kara
2013-03-21 1:37 ` Dave Chinner
2013-03-22 21:12 ` Ben Myers
2013-03-16 7:35 ` Dave Chinner
2013-03-22 23:18 ` Ben Myers [this message]
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