From: Doug Maxey <dwm@maxeymade.com>
To: Jens Axboe <axboe@suse.de>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>,
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
Jeff Garzik <jgarzik@pobox.com>,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH] scsi/sata write barrier support
Date: Thu, 27 Jan 2005 16:42:50 -0600 [thread overview]
Message-ID: <200501272242.j0RMgoP5016154@falcon30.maxeymade.com> (raw)
In-Reply-To: <20050127120244.GO2751@suse.de>
On Thu, 27 Jan 2005 13:02:48 +0100, Jens Axboe wrote:
>Hi,
>
>For the longest time, only the old PATA drivers supported barrier writes
>with journalled file systems. This patch adds support for the same type
>of cache flushing barriers that PATA uses for SCSI, to be utilized with
>libata.
What, if any mechanism supports changing the underlying write cache?
That is, assuming this is common across PATA and SCSI drives, and it is
possible to turn the cache off on the IDE drives, would switching the
cache underneath require completing the inflight IO?
++doug
next prev parent reply other threads:[~2005-01-27 22:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-27 12:02 Jens Axboe
2005-01-27 15:08 ` [PATCH] scsi/sata write barrier support #2 Jens Axboe
2005-01-27 23:02 ` Jeff Garzik
2005-01-27 22:42 ` Doug Maxey [this message]
2005-01-27 23:00 ` [PATCH] scsi/sata write barrier support Jeff Garzik
2005-01-28 6:54 ` Jens Axboe
2005-01-28 8:10 ` Jeff Garzik
2005-01-28 8:18 ` Jens Axboe
2005-01-28 9:38 ` Jens Axboe
2005-01-28 13:06 ` James Bottomley
2005-01-28 13:10 ` Jens Axboe
2005-01-28 13:12 ` James Bottomley
2005-01-28 6:58 ` Jens Axboe
2005-02-22 4:42 ` Greg Stark
2005-02-22 7:13 ` Jens Axboe
2005-02-22 17:06 ` Greg Stark
2005-03-01 8:47 ` Jens Axboe
2005-03-01 15:55 ` Greg Stark
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