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From: Christoph Hellwig <hch@infradead.org>
To: Georg Sch?nberger <g.schoenberger@xortex.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	Martin Steigerwald <martin@lichtvoll.de>,
	Jens Axboe <axboe@kernel.dk>,
	Linux FS-Devel <linux-fsdevel@vger.kernel.org>,
	Jeff Moyer <jmoyer@redhat.com>,
	Linux Block mailing list <linux-block@vger.kernel.org>,
	XFS mailing list <xfs@oss.sgi.com>
Subject: Re: XFS and nobarrier with SSDs
Date: Mon, 14 Dec 2015 05:36:05 -0800	[thread overview]
Message-ID: <20151214133605.GA20841@infradead.org> (raw)
In-Reply-To: <566E9B36.9080509@xortex.com>

On Mon, Dec 14, 2015 at 10:34:30AM +0000, Georg Sch?nberger wrote:
> OK, thanks for clarification.
> Should the XFS FAQ be updated?
> *http://xfs.org/index.php/XFS_FAQ#Q._Should_barriers_be_enabled_with_storage_which_has_a_persistent_write_cache.3F

Probably.  The text soudns to me like it was written a long time ago
when Linux actually use barriers that also prevent I/O reordering
instead of just issuing the required cache flushes.

  reply	other threads:[~2015-12-14 13:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-12 10:24 XFS and nobarrier with SSDs Georg Schönberger
2015-12-12 12:26 ` Martin Steigerwald
2015-12-14  6:43   ` Georg Schönberger
2015-12-14  8:38     ` Martin Steigerwald
2015-12-14  8:38       ` Martin Steigerwald
2015-12-14  9:58       ` Christoph Hellwig
2015-12-14  9:58         ` Christoph Hellwig
2015-12-14 10:18         ` Georg Schönberger
2015-12-14 10:18           ` Georg Schönberger
2015-12-14 10:27           ` Christoph Hellwig
2015-12-14 10:27             ` Christoph Hellwig
2015-12-14 10:34             ` Georg Schönberger
2015-12-14 10:34               ` Georg Schönberger
2015-12-14 13:36               ` Christoph Hellwig [this message]
2015-12-14 16:39               ` Eric Sandeen
2015-12-26 23:44             ` Linda Walsh
2015-12-26 23:44               ` Linda Walsh
2015-12-14 11:48 ` Emmanuel Florac

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