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Re: [PATCH 2/2] xfs: kick inode writeback when low on memory

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 2/2] xfs: kick inode writeback when low on memory
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon, 11 Apr 2011 14:36:53 -0400
Cc: xfs@xxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx
In-reply-to: <1302157196-1988-3-git-send-email-david@xxxxxxxxxxxxx>
References: <1302157196-1988-1-git-send-email-david@xxxxxxxxxxxxx> <1302157196-1988-3-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
How do you produce so many atime-dirty inodes?  With relatime we
should have cut down on the requirement for those a lot.

Do you have traces that show if we're kicking off additional data
writeback this way too, or just pushing timestamp updates into
the AIL?

Either way the actual patch looks good,


Reviewed-by: Christoph Hellwig <hch@xxxxxx>

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