Re: [PATCH v2 01/26] block: Convert integrity to bvec_alloc_bs(),and a bugfix

From: Tejun Heo
Date: Fri Oct 19 2012 - 16:34:17 EST

On Mon, Oct 15, 2012 at 01:09:04PM -0700, Kent Overstreet wrote:
> This adds a pointer to the bvec array to struct bio_integrity_payload,
> instead of the bvecs always being inline; then the bvecs are allocated
> with bvec_alloc_bs().
> This is needed eventually for immutable bio vecs - immutable bvecs
> aren't useful if we still have to copy them, hence the need for the
> pointer. Less code is always nice too, though.
> Also fix an amusing bug in bio_integrity_split() - struct bio_pair
> doesn't have the integrity bvecs after the bio_integrity_payloads, so
> there was a buffer overrun. The code was confusing pointers with arrays.

Ummm... patch description doesn't agree with the patch content?

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