Re: [PATCH 1/4] bdi: Track users that require stable page writes
From: Christoph Hellwig <hch@infradead.org>
Date: 2012-11-21 07:54:35
Also in:
linux-fsdevel, lkml
On Tue, Nov 20, 2012 at 06:00:34PM -0800, Darrick J. Wong wrote:
This creates a per-backing-device counter that tracks the number of users which require pages to be held immutable during writeout. Eventually it will be used to waive wait_for_page_writeback() if nobody requires stable pages.
Why are we going down this stupid route again now? Just let the block device say it needs stable writes and let the VM deal with it.