Re: [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios

From: Christoph Hellwig
Date: Fri Aug 07 2015 - 03:30:12 EST


I'm for solution 3:

- keep blk_bio_{discard,write_same}_split, but ensure we never built
a > 4GB bio in blkdev_issue_{discard,write_same}.

Note that this isn't special casing, we can't build > 4GB bios for
data either, it's just implemented as a side effect right now instead
of checked explicitly.
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