On Wed, May 23, 2012 at 05:02:38PM -0700, Kent Overstreet wrote:
> With the old code, when you allocate a bio from a bio pool you have to
> implement your own destructor that knows how to find the bio pool the
> bio was originally allocated from.
>
> This adds a new field to struct bio (bi_pool) and changes
> bio_alloc_bioset() to use it. This makes various bio destructors
> unnecessary, so they're then deleted.
>
[..]
> @@ -419,7 +406,11 @@ void bio_put(struct bio *bio)
> */
> if (atomic_dec_and_test(&bio->bi_cnt)) {
> bio->bi_next = NULL;
> - bio->bi_destructor(bio);
> +
> + if (bio->bi_pool)
> + bio_free(bio, bio->bi_pool);
> + else
> + bio->bi_destructor(bio);
If you have removed all the users of bi_destructor, then I am wondering that
why are we retaining this field and trying to call into it when bio_pool
is not set?
Thanks
Vivek
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