Re: [PATCH v2 01/26] block: Convert integrity to bvec_alloc_bs(),and a bugfix
From: Tejun Heo
Date: Fri Oct 19 2012 - 16:36:02 EST
On Fri, Oct 19, 2012 at 01:34:21PM -0700, Tejun Heo wrote:
> 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?
And the patch posted doesn't match the commit in git branch.
Dazed and confused. Bailing out. Let's retry next time.
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