From: Christoph Hellwig <hch@infradead.org>
To: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: Linux-Kernel <linux-kernel@vger.kernel.org>,
Linux-SCSI <linux-scsi@vger.kernel.org>
Subject: Re: [ANNOUNCE] QLogic qla2xxx driver update available (v8.00.00b6).
Date: Thu, 6 Nov 2003 09:36:00 +0000 [thread overview]
Message-ID: <20031106093600.A14526@infradead.org> (raw)
In-Reply-To: <B179AE41C1147041AA1121F44614F0B060ED62@AVEXCH02.qlogic.org>; from andrew.vasquez@qlogic.com on Tue, Nov 04, 2003 at 05:15:33PM -0800
> o Slab cache allocations for driver SRBs.
this one is broken. You kall kmem_cache_alloc and kmem_cache_free
under a spinlock which is not wrong (at least with GFP_ATOMIC) but useless.
You don't have a mempool so you will deadlock under load.
You have a kmem_cache_t per host which is unessecary, one in the driver is
enough.
> the source-type tarball format. It's not worth the extra effort of
> building a separate drop-in kernel tarball, given the varying release
> periods of the driver. Similar drop-in-kernel-tarball results can be
> had by:
Would be nice to unpack into a directory instead of CWD, like almost any
tarball does..
> Failover functionality is present in this distribution, at this time I
> do not foresee a policy change regarding its presence in the 8.x
> series driver. The next beta release of 8.x will be failover-feature
> resync'd with our latest 6.x beta (6.07.xx).
So it won't get merged into 2.6.x. Not that it would be likely given your
complete ignorance of the other TODO items. Sometimes I really wish to
get some funding to work on a mergeable qla2xxx driver as it seems impossible
to get one from qlogic..
--
Christoph Hellwig <hch@lst.de> - Freelance Hacker
Contact me for driver hacking and kernel development consulting
next prev parent reply other threads:[~2003-11-06 9:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-05 1:15 Andrew Vasquez
2003-11-05 9:17 ` Mike Anderson
2003-11-06 9:36 ` Christoph Hellwig [this message]
2003-11-06 10:51 ` Christoph Hellwig
2003-11-05 18:39 Andrew Vasquez
2003-11-06 9:17 ` Jens Axboe
2003-11-06 17:02 Andrew Vasquez
2003-11-06 17:53 ` Matthew Wilcox
2003-11-07 9:58 ` Christoph Hellwig
2003-11-07 9:33 ` Christoph Hellwig
2003-11-06 17:11 Andrew Vasquez
2003-11-06 17:14 ` Jens Axboe
2003-11-06 17:43 ` Arjan van de Ven
2003-11-06 17:50 ` Jens Axboe
2003-11-06 17:55 ` Arjan van de Ven
2003-11-06 17:58 ` Jens Axboe
2003-11-06 17:45 Andrew Vasquez
2003-11-06 17:59 ` Arjan van de Ven
2003-11-07 9:37 ` Christoph Hellwig
2003-11-06 19:33 Andrew Vasquez
2003-11-07 9:39 ` Christoph Hellwig
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