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Date: Fri, 3 Feb 2012 09:08:34 -0500 From: Christoph Hellwig <hch@...radead.org> To: Wu Fengguang <fengguang.wu@...el.com> Cc: Amit Sahrawat <amit.sahrawat83@...il.com>, Jan Kara <jack@...e.cz>, Andrew Morton <akpm@...ux-foundation.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Johannes Weiner <jweiner@...hat.com>, Amit Sahrawat <a.sahrawat@...sung.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/2] mm: make do_writepages() use plugging On Fri, Feb 03, 2012 at 09:38:23PM +0800, Wu Fengguang wrote: > On Fri, Feb 03, 2012 at 06:57:06PM +0530, Amit Sahrawat wrote: > > This will cover all the invocations for writepages to be called with > > plugging support. > > Thanks. I'll test it on the major filesystems. But would you > name a few filesystems that are expected to benefit from it? > It's not obvious because some FS ->writepages eventually calls > generic_writepages() which already does plugging. Ant that's exactly where it should stay instead of beeing sprinkled all over the VM code. NAK to the patch. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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