Re: [PATCH 1/1] NBD: make nbd default to deadline I/O scheduler

From: Andrew Morton
Date: Tue Feb 12 2008 - 18:17:04 EST


On Sat, 09 Feb 2008 08:30:40 -0500
Paul Clements <paul.clements@xxxxxxxxxxxx> wrote:

> + old_e = disk->queue->elevator;
> + if (elevator_init(disk->queue, "deadline") == 0 ||
> + elevator_init(disk->queue, "noop") == 0) {
> + elevator_exit(old_e);
> + }
> }

afacit elevator_init() will not trigger a request_module(). And you really
do want to trigger the request_module() here. Perhaps the block layer
should provide a means of doing so?

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