On Tue, 19 Feb 2013 16:22:40 -0800 Kent Overstreet <koverstr...@google.com>
wrote:
> This is for the new bio splitting code. When we split a bio, if the
> split occured on a bvec boundry we reuse the bvec for the new bio. But
> that means bio_free() can't free it, hence the explicit flag.
>
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -117,6 +117,7 @@ struct bio {
> * BIO_POOL_IDX()
> */
> #define BIO_RESET_BITS 12
> +#define BIO_OWNS_VEC 12 /* bio_free() should free bvec */
>
> #define bio_flagged(bio, flag) ((bio)->bi_flags & (1 << (flag)))
The BIO_OWNS_VEC definition seems to be in the wrong place - it should
be grouped with the "bio flags" group above?
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