From: Christoph Hellwig <hch@infradead.org>
To: Christoph Hellwig <hch@infradead.org>,
Robert Hancock <hancockrwd@gmail.com>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
linux-scsi@vger.kernel.org, Jeff Garzik <jeff@garzik.org>,
Zheng Liu <wenqing.lz@taobao.com>
Subject: Re: [RFC][PATCH] libata: enable SATA disk fua detection on default
Date: Wed, 9 May 2012 09:23:17 -0400 [thread overview]
Message-ID: <20120509132317.GA24014@infradead.org> (raw)
In-Reply-To: <20120509124804.GA13329@gmail.com>
On Wed, May 09, 2012 at 08:48:04PM +0800, Zheng Liu wrote:
> Thanks for your explanation. It seems that there still has a problem.
> If I set the disk to write through mode, I need to modify my application
> to remove all of flush/sync operations. It is unacceptable for us.
You don't have to - the kernel will not send a SYNCHRONIZE CACHE command
unless the disk advertises a write back cache.
next prev parent reply other threads:[~2012-05-09 13:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-08 3:24 [RFC][PATCH] libata: enable SATA disk fua detection on default Zheng Liu
2012-05-09 5:38 ` Robert Hancock
2012-05-09 6:19 ` Zheng Liu
2012-05-09 8:25 ` Christoph Hellwig
2012-05-09 9:30 ` Zheng Liu
2012-05-09 11:12 ` Christoph Hellwig
2012-05-09 12:48 ` Zheng Liu
2012-05-09 13:20 ` Bernd Schubert
2012-05-09 13:23 ` Christoph Hellwig [this message]
2012-07-03 9:04 ` Zheng Liu
2012-07-03 20:11 ` Michael Tokarev
2012-07-04 2:47 ` Zheng Liu
2012-07-04 6:36 ` Michael Tokarev
2012-07-04 7:06 ` Zheng Liu
2012-09-09 20:34 ` Arvydas Sidorenko
2012-09-09 20:39 ` Jeff Garzik
2012-08-17 18:06 ` Enabling FUA for SATA drives (was Re: [RFC][PATCH] libata: enable SATA disk fua detection on default) Jeff Garzik
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120509132317.GA24014@infradead.org \
--to=hch@infradead.org \
--cc=hancockrwd@gmail.com \
--cc=jeff@garzik.org \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=wenqing.lz@taobao.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.