Re: cleanup and refactor BLOCK_PC mapping helpers V2

From: Ming Lei
Date: Sun Jan 25 2015 - 05:29:38 EST




On 01/18/2015 11:16 PM, Christoph Hellwig wrote:
This series is based on the first two patches from the reent
series that Dongsu Park recently sent, and refactors and cleanups
up various aspect of our BLOCK_PC mapping helpers.

Changes since V1:
- keep a separate blk_rq_map_user for now, it contains magic
for the sg and tape drivers that's still missing from
blk_rq_map_user_iov

Looks all are nice cleanup:

Reviewed-by: Ming Lei <tom.leiming@xxxxxxxxx>

Also patches passed xfstests(check -g auto) against v3.19-rc4_next-20150115.

Thanks,
Ming Lei
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