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From: Christoph Hellwig <hch@infradead.org>
To: Patrick Mansfield <patmans@us.ibm.com>
Cc: Luben Tuikov <tluben@rogers.com>,
	James Bottomley <James.Bottomley@steeleye.com>,
	linux-scsi@vger.kernel.org
Subject: Re: [PATCH] scsi-misc-2.5 user per-device spare command
Date: Fri, 25 Apr 2003 17:56:30 +0100	[thread overview]
Message-ID: <20030425175630.A4720@infradead.org> (raw)
In-Reply-To: <20030425095055.B8776@beaverton.ibm.com>; from patmans@us.ibm.com on Fri, Apr 25, 2003 at 09:50:55AM -0700

On Fri, Apr 25, 2003 at 09:50:55AM -0700, Patrick Mansfield wrote:
> On Fri, Apr 25, 2003 at 10:12:51AM -0400, Luben Tuikov wrote:
> 
> > 1. Use the cache *first*, and if it's depleted, *then*
> > use the spare command struct.
> 
> Then we would allocate and almost never use the spare. This is a bit
> different as compared to the per-host spare, when we shoulid use the
> spare only as a last resort.

Again, it's no more a spare if you use it first, it's a cache then
and will always be gone when you need it.


  reply	other threads:[~2003-04-25 16:44 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-24 17:02 [PATCH] scsi-misc-2.5 remove scsi_device list_lock Patrick Mansfield
2003-04-24 17:03 ` [PATCH] scsi-misc-2.5 user per-device spare command Patrick Mansfield
2003-04-24 17:03   ` [PATCH] scsi-misc-2.5 fold scsi_alloc_cmd into __scsi_get_command Patrick Mansfield
2003-04-25 10:12   ` [PATCH] scsi-misc-2.5 user per-device spare command Christoph Hellwig
2003-04-25 14:12     ` Luben Tuikov
2003-04-25 16:50       ` Patrick Mansfield
2003-04-25 16:56         ` Christoph Hellwig [this message]
2003-04-25 17:45         ` Luben Tuikov
2003-04-25 18:00           ` Patrick Mansfield
2003-04-25 18:36             ` Luben Tuikov
2003-04-25 16:37     ` Patrick Mansfield
2003-04-25 16:50       ` Christoph Hellwig
2003-04-25 16:57       ` James Bottomley
2003-04-25 20:49         ` Patrick Mansfield
2003-04-25 17:38       ` Luben Tuikov
2003-04-25 10:12 ` [PATCH] scsi-misc-2.5 remove scsi_device list_lock Christoph Hellwig
2003-04-25 10:47   ` Jens Axboe
2003-04-25 16:53     ` Patrick Mansfield
2003-04-25 17:20       ` Jens Axboe
2003-04-25 14:00   ` Luben Tuikov

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