From: Jens Axboe <axboe@suse.de>
To: Christoph Hellwig <hch@infradead.org>
Cc: Patrick Mansfield <patmans@us.ibm.com>, linux-scsi@vger.kernel.org
Subject: Re: [PATCH] 5/7 alloc a request_queue on each scsi_alloc_sdev call
Date: Tue, 25 Mar 2003 08:18:51 +0100 [thread overview]
Message-ID: <20030325071851.GL2371@suse.de> (raw)
In-Reply-To: <20030325071224.A30790@infradead.org>
On Tue, Mar 25 2003, Christoph Hellwig wrote:
> On Mon, Mar 24, 2003 at 06:03:25PM -0800, Patrick Mansfield wrote:
> > Call scsi_alloc_queue each time we call scsi_alloc_sdev; call
> > scsi_free_queue each time we do not find backing LUN.
> >
> > This code is less optimal, but leads to cleaner code, and the lock
> > split-up patch needs this change.
>
> I think this needs to be deferred until akpm (or someone else) implemented
> the lazy request allocation.
lazy request allocation is coming shortly, hopefully today.
--
Jens Axboe
next prev parent reply other threads:[~2003-03-25 7:18 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-25 1:53 [PATCH] 0/7 per scsi_device queue lock patches Patrick Mansfield
2003-03-25 1:54 ` [PATCH] 1/7 starved changes - use a list_head for starved queue's Patrick Mansfield
2003-03-25 2:02 ` [PATCH] 2/7 add missing scsi_queue_next_request calls Patrick Mansfield
2003-03-25 2:02 ` [PATCH] 3/7 consolidate single_lun code Patrick Mansfield
2003-03-25 2:03 ` [PATCH] 4/7 cleanup/consolidate code in scsi_request_fn Patrick Mansfield
2003-03-25 2:03 ` [PATCH] 5/7 alloc a request_queue on each scsi_alloc_sdev call Patrick Mansfield
2003-03-25 2:03 ` [PATCH] 6/7 add and use a per-scsi_device queue_lock Patrick Mansfield
2003-03-25 2:04 ` [PATCH] 7/7 fix single_lun code for " Patrick Mansfield
2003-03-25 21:23 ` Luben Tuikov
2003-03-26 21:47 ` Patrick Mansfield
2003-03-26 22:12 ` Luben Tuikov
2003-03-25 21:03 ` [PATCH] 6/7 add and use a " Luben Tuikov
2003-03-26 21:33 ` Patrick Mansfield
2003-03-25 21:20 ` James Bottomley
2003-03-26 2:01 ` Patrick Mansfield
2003-03-27 16:09 ` James Bottomley
2003-03-28 0:30 ` Patrick Mansfield
2003-03-25 7:12 ` [PATCH] 5/7 alloc a request_queue on each scsi_alloc_sdev call Christoph Hellwig
2003-03-25 7:18 ` Jens Axboe [this message]
2003-03-25 21:32 ` [PATCH] 4/7 cleanup/consolidate code in scsi_request_fn Luben Tuikov
2003-03-26 0:58 ` Patrick Mansfield
2003-03-26 17:07 ` Luben Tuikov
2003-03-26 17:13 ` Patrick Mansfield
2003-03-26 17:25 ` Luben Tuikov
2003-03-25 20:36 ` [PATCH] 3/7 consolidate single_lun code Luben Tuikov
2003-03-26 19:11 ` Patrick Mansfield
2003-03-26 22:05 ` Luben Tuikov
2003-03-27 22:43 ` Patrick Mansfield
2003-03-28 15:09 ` Luben Tuikov
2003-03-28 20:06 ` Patrick Mansfield
2003-03-25 20:50 ` Luben Tuikov
2003-03-25 19:41 ` [PATCH] 2/7 add missing scsi_queue_next_request calls Luben Tuikov
2003-03-25 19:39 ` [PATCH] 1/7 starved changes - use a list_head for starved queue's Luben Tuikov
2003-03-27 16:14 ` [PATCH] 0/7 per scsi_device queue lock patches James Bottomley
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