From: Jeff Garzik <jgarzik@pobox.com>
To: Jens Axboe <axboe@suse.de>
Cc: linux-kernel@vger.kernel.org,
"Eric D. Mudama" <edmudama@mail.bounceswoosh.org>,
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
Ed Tomlinson <edt@aei.ca>, Andrew Morton <akpm@osdl.org>
Subject: Re: flush cache range proposal (was Re: ide errors in 7-rc1-mm1 and later)
Date: Fri, 11 Jun 2004 12:24:01 -0400 [thread overview]
Message-ID: <40C9DCA1.5020509@pobox.com> (raw)
In-Reply-To: <20040611075515.GR13836@suse.de>
Jens Axboe wrote:
> On Thu, Jun 10 2004, Jeff Garzik wrote:
>
>>Oh, also:
>>
>>We'll need to write up precisely _why_ this is used, and give some
>>examples of usage, for people reading the proposal (mostly T13-ish
>>people) who have not been following the lkml barrier discussion closely.
>
>
> Proposal looks fine, but please lets not forget that flush cache range
> is really a band-aid because we don't have a proper ordered write in the
> first place. Personally, I'd much rather see that implemented than flush
> cache range. It would be way more effective.
Certainly agreed, and that was the gist of the reply just sent to Eric:
moving forward, implementing barriers should be done with new "NCQ"
commands and FUA, or something along those lines.
New drives will continue to come out that aren't in the NCQ class for a
while yet, though.
Jeff
next prev parent reply other threads:[~2004-06-11 16:33 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-27 20:24 [2.6.7-rc1-mm1] cant mount reiserfs using -o barrier=flush Günther Persoons
2004-05-27 23:28 ` Ed Tomlinson
2004-05-28 11:54 ` Gunther Persoons
2004-05-28 12:18 ` Jens Axboe
2004-05-28 21:39 ` Ed Tomlinson
2004-05-29 8:30 ` Jens Axboe
2004-06-04 2:07 ` ide errors in 7-rc1-mm1 and later Ed Tomlinson
2004-06-04 2:31 ` Andrew Morton
2004-06-04 9:42 ` Jens Axboe
2004-06-04 11:22 ` Ed Tomlinson
2004-06-04 11:32 ` Jens Axboe
2004-06-04 11:45 ` Jens Axboe
2004-06-04 11:57 ` Bartlomiej Zolnierkiewicz
2004-06-04 12:01 ` Jens Axboe
2004-06-04 12:38 ` Bartlomiej Zolnierkiewicz
2004-06-04 12:47 ` Jens Axboe
2004-06-04 13:34 ` Bartlomiej Zolnierkiewicz
2004-06-04 15:23 ` Jens Axboe
2004-06-04 16:14 ` Bartlomiej Zolnierkiewicz
2004-06-05 9:18 ` Jens Axboe
2004-06-09 21:52 ` Bartlomiej Zolnierkiewicz
2004-06-09 22:06 ` Andrew Morton
2004-06-09 23:38 ` Bartlomiej Zolnierkiewicz
2004-06-09 23:50 ` Andrew Morton
2004-06-10 0:20 ` Bartlomiej Zolnierkiewicz
2004-06-10 0:37 ` Andrew Morton
2004-06-10 1:02 ` Bartlomiej Zolnierkiewicz
2004-06-10 0:28 ` Chris Mason
2004-06-10 0:38 ` Andrew Morton
2004-06-10 0:45 ` Bartlomiej Zolnierkiewicz
2004-06-10 15:14 ` Chris Mason
2004-06-10 15:15 ` Jens Axboe
2004-06-10 1:05 ` Bartlomiej Zolnierkiewicz
2004-06-10 6:27 ` Jens Axboe
2004-06-10 6:26 ` Jens Axboe
2004-06-04 17:29 ` Jeff Garzik
2004-06-05 9:24 ` Jens Axboe
2004-06-06 16:18 ` Eric D. Mudama
2004-06-06 20:46 ` Jens Axboe
2004-06-10 0:38 ` Bartlomiej Zolnierkiewicz
2004-06-10 6:11 ` Jens Axboe
2004-06-10 16:41 ` Eric D. Mudama
2004-06-10 17:50 ` flush cache range proposal (was Re: ide errors in 7-rc1-mm1 and later) Jeff Garzik
2004-06-10 18:02 ` Jeff Garzik
2004-06-10 20:33 ` Eric D. Mudama
2004-06-11 16:22 ` Jeff Garzik
2004-06-11 7:55 ` Jens Axboe
2004-06-11 16:17 ` Eric D. Mudama
2004-06-11 16:31 ` Jeff Garzik
2004-06-11 16:52 ` Eric D. Mudama
2004-06-11 16:58 ` Jens Axboe
2004-06-11 16:54 ` Jens Axboe
2004-06-11 16:50 ` Jens Axboe
2004-06-11 16:24 ` Jeff Garzik [this message]
2004-06-11 6:10 ` Stuart Young
2004-06-26 8:31 ` ide errors in 7-rc1-mm1 and later Andre Hedrick
2004-06-26 8:58 ` Andre Hedrick
2004-06-28 18:18 ` Eric D. Mudama
2004-07-02 8:29 ` Jens Axboe
2004-07-07 5:40 ` Jeff Garzik
2004-06-04 11:48 ` Bartlomiej Zolnierkiewicz
2004-06-09 23:44 ` Ed Tomlinson
2004-06-09 23:52 ` Andrew Morton
2004-06-10 0:17 ` Ed Tomlinson
2004-06-10 6:29 ` Jens Axboe
2004-06-14 21:42 ` Ed Tomlinson
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