linux-kernel - Re: [PATCH 2/5] ext3: call blkdev_issue

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Message-ID: <49D0258A.9020306@garzik.org>
Date:	Sun, 29 Mar 2009 21:51:06 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Fernando Luis Vázquez Cao 
	<fernando@....ntt.co.jp>
CC:	Christoph Hellwig <hch@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Theodore Tso <tytso@....edu>, Ingo Molnar <mingo@...e.hu>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Arjan van de Ven <arjan@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Nick Piggin <npiggin@...e.de>, David Rees <drees76@...il.com>,
	Jesper Krogh <jesper@...gh.cc>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] ext3: call blkdev_issue_flush on fsync()

Fernando Luis Vázquez Cao wrote:
> To ensure that bits are truly on-disk after an fsync or fdatasync, we
> should force a disk flush explicitly when there is dirty data/metadata
> and the journal didn't emit a write barrier (either because metadata is
> not being synched or barriers are disabled).
> 
> Signed-off-by: Fernando Luis Vazquez Cao <fernando@....ntt.co.jp>

Your patches do not seem to propagate the issue-flush error code, even 
when it is easily available.

	Jeff



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