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From: Jeremy Higdon <jeremy@sgi.com>
To: Timothy Shimmin <tes@sgi.com>
Cc: David Chinner <dgc@sgi.com>, Neil Brown <neilb@suse.de>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	dm-devel@redhat.com, linux-raid@vger.kernel.org,
	Jens Axboe <jens.axboe@oracle.com>,
	Phillip Susi <psusi@cfl.rr.com>,
	Stefan Bader <Stefan.Bader@de.ibm.com>,
	Andreas Dilger <adilger@clusterfs.com>,
	Tejun Heo <htejun@gmail.com>
Subject: Re: [RFD] BIO_RW_BARRIER - what it means for devices, filesystems, and dm/md.
Date: Mon, 28 May 2007 23:45:59 -0700	[thread overview]
Message-ID: <20070529064559.GB531679@sgi.com> (raw)
In-Reply-To: <980E945058C35F7E3117FE88@timothy-shimmins-power-mac-g5.local>

On Mon, May 28, 2007 at 02:48:45PM +1000, Timothy Shimmin wrote:
> I'm taking it that the FUA write will just guarantee that that
> particular write has made it to disk on i/o completion
> (and no write cache flush is done).

Correct.  It only applies to that one write command.

jeremy

  reply	other threads:[~2007-05-29  6:45 UTC|newest]

Thread overview: 134+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-25  7:58 [RFD] BIO_RW_BARRIER - what it means for devices, filesystems, and dm/md Neil Brown
2007-05-25  7:58 ` Neil Brown
2007-05-25 11:15 ` David Chinner
2007-05-25 11:49   ` Jens Axboe
2007-05-25 14:49     ` Phillip Susi
2007-05-25 14:49       ` [dm-devel] " Phillip Susi
2007-05-28 18:32       ` Jens Axboe
2007-05-25 13:52 ` Stefan Bader
2007-05-28  1:37   ` Neil Brown
2007-05-29  9:12     ` Stefan Bader
2007-05-25 15:11 ` Phillip Susi
2007-05-25 15:11   ` [dm-devel] " Phillip Susi
2007-05-26  1:03 ` Andreas Dilger
2007-05-26 10:27 ` Tejun Heo
2007-05-28  1:30 ` Neil Brown
2007-05-28  2:45   ` David Chinner
2007-05-28  2:57     ` Neil Brown
2007-05-28  4:29       ` David Chinner
2007-05-28  4:29         ` David Chinner
2007-05-31  0:46         ` Neil Brown
2007-05-31  0:57           ` Alasdair G Kergon
2007-05-31  0:57             ` [dm-devel] " Alasdair G Kergon
2007-05-31  1:07           ` Alasdair G Kergon
2007-05-31  1:07             ` [dm-devel] " Alasdair G Kergon
2007-05-31  1:11             ` David Chinner
2007-05-31  1:11               ` [dm-devel] " David Chinner
2007-05-28  4:48     ` Timothy Shimmin
2007-05-29  6:45       ` Jeremy Higdon [this message]
2007-05-29 20:03     ` Phillip Susi
2007-05-29 23:48       ` David Chinner
2007-05-30  0:01         ` david
2007-05-30  6:17           ` David Chinner
2007-05-30  8:55             ` Stefan Bader
2007-05-30  8:55               ` Stefan Bader
2007-05-30 16:52             ` david
2007-05-30 16:52               ` david
2007-05-31  0:20               ` David Chinner
2007-05-31  6:26                 ` Jens Axboe
2007-05-31  7:03                   ` David Chinner
2007-05-31  7:06                     ` Jens Axboe
2007-05-31 13:30                       ` Bill Davidsen
2007-05-31 13:36                         ` Jens Axboe
2007-06-01 16:04                           ` Bill Davidsen
2007-06-02 14:51                             ` Jens Axboe
2007-06-02 19:55                               ` Bill Davidsen
2007-06-01  3:16                       ` Tejun Heo
2007-06-01  3:16                         ` Tejun Heo
2007-06-01  8:21                         ` Jens Axboe
2007-06-01  8:21                           ` Jens Axboe
2007-06-02  9:20                           ` Tejun Heo
2007-06-02 14:34                             ` Jens Axboe
2007-06-02 14:34                               ` Jens Axboe
2007-06-02 22:57                               ` Guy Watkins
2007-06-02 22:57                                 ` Guy Watkins
2007-06-04  7:39                               ` Tejun Heo
2007-05-31 18:31                     ` Phillip Susi
2007-05-31 19:00                       ` Jens Axboe
2007-05-31 19:21                         ` david
2007-05-31 19:21                           ` david
2007-05-31 19:40                           ` Jens Axboe
2007-05-31 23:34                       ` David Chinner
2007-06-01  5:59                         ` Neil Brown
2007-06-01  6:11                           ` Jens Axboe
2007-06-01  7:53                           ` David Chinner
2007-06-01 23:56                           ` Bill Davidsen
2007-05-31 18:24                 ` Phillip Susi
2007-05-31 18:24                   ` Phillip Susi
2007-05-30 16:45         ` Phillip Susi
2007-05-30 20:27           ` [dm-devel] " Phillip Susi
2007-05-31  6:24             ` Jens Axboe
2007-05-31  6:24               ` [dm-devel] " Jens Axboe
2007-05-31 18:37               ` Phillip Susi
2007-05-31 18:58                 ` Jens Axboe
2007-06-02  0:04                   ` Bill Davidsen
2007-05-28  9:29   ` Tejun Heo
2007-05-28  9:43   ` Alasdair G Kergon
2007-05-28  9:43     ` [dm-devel] " Alasdair G Kergon
2007-05-29  9:25     ` Stefan Bader
2007-05-29 22:05       ` Alasdair G Kergon
2007-05-29 22:05         ` [dm-devel] " Alasdair G Kergon
2007-05-30  9:12         ` Stefan Bader
2007-05-30 10:41           ` Alasdair G Kergon
2007-05-30 10:41             ` [dm-devel] " Alasdair G Kergon
2007-05-30 16:55           ` Phillip Susi
2007-05-30 16:55             ` [dm-devel] " Phillip Susi
2007-05-31 11:14             ` Stefan Bader
2007-06-01  3:25               ` Tejun Heo
2007-06-01  3:25                 ` [dm-devel] " Tejun Heo
2007-06-01  5:55                 ` david
2007-06-01  5:55                   ` [dm-devel] " david
2007-06-01  7:16                   ` Tejun Heo
2007-06-01 17:07                     ` Valdis.Kletnieks
2007-06-01 18:09                       ` Tejun Heo
2007-07-10 18:39                     ` Ric Wheeler
2007-07-10 23:40                       ` Valdis.Kletnieks
2007-07-11  2:49                         ` Tejun Heo
2007-07-11 22:44                         ` Ric Wheeler
2007-07-12 17:34                           ` Valdis.Kletnieks
2007-07-12 19:43                             ` Ric Wheeler
2007-07-12 23:10                             ` Guy Watkins
2007-07-12 23:10                               ` Guy Watkins
2007-07-13 11:30                               ` Ric Wheeler
2007-07-11  2:51                       ` Tejun Heo
2007-05-29 19:59   ` Phillip Susi
2007-05-31  0:22     ` Neil Brown
2007-05-30  9:35   ` Jens Axboe
2007-07-05 12:28     ` Tejun Heo
2007-07-09 12:27       ` Jens Axboe
2007-07-18 10:56     ` [PATCH] block: cosmetic changes Tejun Heo
2007-07-18 10:56       ` Tejun Heo
2007-07-18 10:59       ` [PATCH] block: factor out bio_check_eod() Tejun Heo
2007-07-18 10:59         ` Tejun Heo
2007-07-18 11:06         ` Jens Axboe
2007-07-18 11:18           ` Tejun Heo
2007-07-18 11:18             ` Tejun Heo
2007-07-18 11:31             ` Jens Axboe
2007-07-18 11:31               ` Jens Axboe
2007-07-18 11:33               ` Tejun Heo
2007-07-18 11:33                 ` Tejun Heo
2007-07-18 11:34                 ` Jens Axboe
2007-07-18 11:34                   ` Jens Axboe
2007-07-18 11:41                   ` Tejun Heo
2007-07-18 11:41                     ` Tejun Heo
2007-07-18 11:45                     ` Jens Axboe
2007-07-18 11:49                       ` Jens Axboe
2007-07-18 12:34                         ` Tejun Heo
2007-07-18 12:31                       ` Jens Axboe
2007-05-28 11:17 ` [RFD] BIO_RW_BARRIER - what it means for devices, filesystems, and dm/md Nikita Danilov
2007-05-31  3:31   ` Neil Brown
2007-05-28 14:43 ` Bill Davidsen
2007-05-28 14:43   ` Bill Davidsen
2007-05-31  0:37   ` Neil Brown
2007-05-31 12:28     ` Bill Davidsen
2007-05-31 12:28       ` Bill Davidsen

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