From: James Bottomley <James.Bottomley@SteelEye.com>
To: Tejun Heo <htejun@gmail.com>
Cc: Jens Axboe <axboe@suse.de>,
SCSI Mailing List <linux-scsi@vger.kernel.org>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH scsi-misc-2.6 04/08] scsi: remove meaningless volatile qualifiers from structure definitions
Date: Tue, 22 Mar 2005 22:15:27 -0600 [thread overview]
Message-ID: <1111551327.5520.99.camel@mulgrave> (raw)
In-Reply-To: <20050323021335.2655518E@htj.dyndns.org>
On Wed, 2005-03-23 at 11:14 +0900, Tejun Heo wrote:
> scsi_device->device_busy, Scsi_Host->host_busy and
> ->host_failed have volatile qualifiers, but the qualifiers
> don't serve any purpose. Kill them. While at it, protect
> ->host_failed update in scsi_error for consistency and clarity.
Well ... the data here is volatile so what you're advocating is a move
away from a volatile variable model to a protected variable one ... did
you audit all users of both of these to make sure we have protection on
all of them? It looks like the sata strategy handlers would still rely
on the volatile data.
James
next prev parent reply other threads:[~2005-03-23 4:15 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-23 2:14 [PATCH scsi-misc-2.6 00/08] scsi: small fixes & cleanups Tejun Heo
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 01/08] scsi: remove unused bounce-buffer release path Tejun Heo
2005-03-23 4:07 ` James Bottomley
2005-03-23 6:08 ` Tejun Heo
2005-03-23 15:27 ` Jens Axboe
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 02/08] scsi: don't use blk_insert_request() for requeueing Tejun Heo
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 03/08] scsi: remove unused scsi_cmnd->internal_timeout field Tejun Heo
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 04/08] scsi: remove meaningless volatile qualifiers from structure definitions Tejun Heo
2005-03-23 4:15 ` James Bottomley [this message]
2005-03-23 4:22 ` Jeff Garzik
2005-03-23 5:28 ` Tejun Heo
2005-03-23 15:16 ` James Bottomley
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 05/08] scsi: remove a timer race from scsi_queue_insert() and cleanup timer Tejun Heo
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 06/08] scsi: remove meaningless scsi_cmnd->serial_number_at_timeout field Tejun Heo
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 07/08] scsi: remove bogus {get|put}_device() calls Tejun Heo
2005-03-23 4:15 ` James Bottomley
2005-03-23 9:13 ` Tejun Heo
2005-03-29 17:02 ` Patrick Mansfield
2005-03-23 2:14 ` [PATCH scsi-misc-2.6 08/08] scsi: fix hot unplug sequence Tejun Heo
2005-03-23 4:08 ` James Bottomley
2005-03-23 4:50 ` Tejun Heo
2005-03-23 7:19 ` Jens Axboe
2005-03-23 15:20 ` James Bottomley
2005-03-23 15:25 ` Jens Axboe
2005-03-25 0:45 ` James Bottomley
2005-03-25 3:15 ` Tejun Heo
2005-03-25 5:02 ` James Bottomley
2005-03-25 5:38 ` Tejun Heo
2005-03-25 19:19 ` James Bottomley
2005-03-25 21:43 ` Tejun Heo
2005-03-25 22:49 ` James Bottomley
2005-03-26 7:27 ` Kai Makisara
2005-03-26 14:48 ` James Bottomley
2005-03-23 15:12 ` James Bottomley
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