/**
* bio_integrity_free - Free bio integrity payload
* @bio: bio containing bip to be freed
*
* Description: Used to free the integrity portion of a bio. Usually
* called from bio_free().
*/
void bio_integrity_free(struct bio *bio)
{
struct bio_integrity_payload *bip = bio->bi_integrity;
struct bio_set *bs = bio->bi_pool;
if (bip->bip_owns_buf)
kfree(bip->bip_buf);
if (bs) {
if (bip->bip_slab != BIO_POOL_NONE)
bvec_free(bs->bvec_integrity_pool, bip->bip_vec,
bip->bip_slab);
mempool_free(bip, bs->bio_integrity_pool);
} else {
kfree(bip);
}
bio->bi_integrity = NULL;
}
/**
* bio_integrity_free - Free bio integrity payload
* @bio: bio containing bip to be freed
*
* Description: Used to free the integrity portion of a bio. Usually
* called from bio_free().
*/
void bio_integrity_free(struct bio *bio)
{
struct bio_integrity_payload *bip = bio_integrity(bio);
struct bio_set *bs = bio->bi_pool;
if (bip->bip_flags & BIP_BLOCK_INTEGRITY)
kfree(page_address(bip->bip_vec->bv_page) +
bip->bip_vec->bv_offset);
if (bs) {
if (bip->bip_slab != BIO_POOL_NONE)
bvec_free(bs->bvec_integrity_pool, bip->bip_vec,
bip->bip_slab);
mempool_free(bip, bs->bio_integrity_pool);
} else {
kfree(bip);
}
bio->bi_integrity = NULL;
}
static void bio_free(struct bio *bio)
{
struct bio_set *bs = bio->bi_pool;
void *p;
__bio_free(bio);
if (bs) {
bvec_free(bs->bvec_pool, bio->bi_io_vec, BVEC_POOL_IDX(bio));
/*
* If we have front padding, adjust the bio pointer before freeing
*/
p = bio;
p -= bs->front_pad;
mempool_free(p, bs->bio_pool);
} else {
/* Bio was allocated by bio_kmalloc() */
kfree(bio);
}
}
/* When the bvec becomes unreachable from the ML process, it will be
garbage-collected, mlbdd_finalize_bvec() will be called on the bvec,
which will do the necessary bvec-bookkeeping. */
void mlbdd_finalize_bvec(value obj)
{
bvec_free(BVEC_val(obj));
}