[dm-devel] Re: [RFC PATCH 0/8] rqbased-dm: request-based device-mapper
Jens Axboe
jens.axboe at oracle.com
Wed Dec 20 18:51:43 UTC 2006
On Tue, Dec 19 2006, Kiyoshi Ueda wrote:
> For block layer maintainer and developers:
> This patch set has 2 block layer changes below.
> - Changed blk_get_request() to allow calls from interrupt context
> so that queue's request_fn can use it. (PATCH 1/8)
> (*) The behaviour of CFQ (or other scheduler which depends on
> "current") may be affected when blk_get_request() is called
> in interrupt context, because "current" is not the process
> which issue the original request.
This we already covered.
> - Added new "end_io_first" hook to __end_that_request_first()
> and struct request. (PATCH 2/8)
This I still need an explanation for.
> And I'm thinking about:
> - Moving blk_clone_rq() to ll_rw_blk.c from dm.c. (PATCH 7/8)
That definitely should be core code. I see no problem in that.
--
Jens Axboe
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