Messages in this thread | | | Date | Sat, 27 Dec 2014 07:02:07 -0800 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH 01/17] block: make generic_make_request handle arbitrarily sized bios |
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On Tue, Dec 23, 2014 at 12:41:40PM +0100, Dongsu Park wrote: > You mean, checking rq->cmd_type == REQ_TYPE_BLOCK_PC, right? > > I'm wondering about how to check that in blk_queue_split(). > At the moment when blk_queue_split() is called, it's even before a request > is mapped e.g. in blk_sq_make_request(). > Unlike scsi drivers where it's easy to get cmd->rq, blk_queue_split() > doesn't seem to be able to get a request by blk_get_request(). > > Or am I missing something?
You're probably missing what I didn't notice either: BLOCK_PC requests are never sent through ->make_request. Consider my comment withdrawn and sorry for the confusion.
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