linux-kernel - Re: [PATCH] Save command pool address of Scsi

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Message-ID: <20140804110310.GA19109@infradead.org>
Date:	Mon, 4 Aug 2014 04:03:10 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Juergen Gross <jgross@...e.com>
Cc:	James Bottomley <James.Bottomley@...senPartnership.com>,
	Christoph Hellwig <hch@...radead.org>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Save command pool address of Scsi_Host

On Mon, Aug 04, 2014 at 06:22:59AM +0200, Juergen Gross wrote:
> OTOH it would be possible to just delete .cmd_pool in the template when
> deleting the pool. I'll send a patch doing this and you can decide
> whether to take it or to use the other solution.
> 
> I'm not sure which to prefer: the init/remove version is simple, while
> the dynamic version requires no changes in the driver's source and the
> pool's resources are allocated only when really needed.

the init/remove version needs the driver to call a per-host template
function/method from module_init/exit, something we've avoided
successfully for the last 10 years.


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