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block: Ues bi_pool for bio_integrity_alloc() 

Now that bios keep track of where they were allocated from,
bio_integrity_alloc_bioset() becomes redundant.

Remove bio_integrity_alloc_bioset() and drop bio_set argument from the
related functions and make them use bio->bi_pool.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Kent Overstreet 2012-09-06 15:34:56 -07:00 committed by Jens Axboe
parent 395c72a707
commit 1e2a410ff7
6 changed files with 26 additions and 41 deletions
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2
block/blk-core.c
View File

@ -2788,7 +2788,7 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
__bio_clone(bio, bio_src);
if (bio_integrity(bio_src) &&
bio_integrity_clone(bio, bio_src, gfp_mask, bs))
bio_integrity_clone(bio, bio_src, gfp_mask))
goto free_and_out;
if (bio_ctr && bio_ctr(bio, bio_src, data))

4
drivers/md/dm.c
View File

@ -1068,7 +1068,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
clone->bi_flags |= 1 << BIO_CLONED;
if (bio_integrity(bio)) {
bio_integrity_clone(clone, bio, GFP_NOIO, bs);
bio_integrity_clone(clone, bio, GFP_NOIO);
bio_integrity_trim(clone,
bio_sector_offset(bio, idx, offset), len);
}
@ -1094,7 +1094,7 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector,
clone->bi_flags &= ~(1 << BIO_SEG_VALID);
if (bio_integrity(bio)) {
bio_integrity_clone(clone, bio, GFP_NOIO, bs);
bio_integrity_clone(clone, bio, GFP_NOIO);
if (idx != bio->bi_idx || clone->bi_size < bio->bi_size)
bio_integrity_trim(clone,

2
drivers/md/md.c
View File

@ -186,7 +186,7 @@ struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask,
if (bio_integrity(bio)) {
int ret;
ret = bio_integrity_clone(b, bio, gfp_mask, mddev->bio_set);
ret = bio_integrity_clone(b, bio, gfp_mask);
if (ret < 0) {
bio_put(b);

44
fs/bio-integrity.c
View File

@ -70,23 +70,25 @@ static inline int use_bip_pool(unsigned int idx)
}
/**
* bio_integrity_alloc_bioset - Allocate integrity payload and attach it to bio
* bio_integrity_alloc - Allocate integrity payload and attach it to bio
* @bio: bio to attach integrity metadata to
* @gfp_mask: Memory allocation mask
* @nr_vecs: Number of integrity metadata scatter-gather elements
* @bs: bio_set to allocate from
*
* Description: This function prepares a bio for attaching integrity
* metadata. nr_vecs specifies the maximum number of pages containing
* integrity metadata that can be attached.
*/
struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
gfp_t gfp_mask,
unsigned int nr_vecs,
struct bio_set *bs)
struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
gfp_t gfp_mask,
unsigned int nr_vecs)
{
struct bio_integrity_payload *bip;
unsigned int idx = vecs_to_idx(nr_vecs);
struct bio_set *bs = bio->bi_pool;
if (!bs)
bs = fs_bio_set;
BUG_ON(bio == NULL);
bip = NULL;
@ -114,37 +116,22 @@ struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
return bip;
}
EXPORT_SYMBOL(bio_integrity_alloc_bioset);
/**
* bio_integrity_alloc - Allocate integrity payload and attach it to bio
* @bio: bio to attach integrity metadata to
* @gfp_mask: Memory allocation mask
* @nr_vecs: Number of integrity metadata scatter-gather elements
*
* Description: This function prepares a bio for attaching integrity
* metadata. nr_vecs specifies the maximum number of pages containing
* integrity metadata that can be attached.
*/
struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
gfp_t gfp_mask,
unsigned int nr_vecs)
{
return bio_integrity_alloc_bioset(bio, gfp_mask, nr_vecs, fs_bio_set);
}
EXPORT_SYMBOL(bio_integrity_alloc);
/**
* bio_integrity_free - Free bio integrity payload
* @bio: bio containing bip to be freed
* @bs: bio_set this bio was allocated from
*
* Description: Used to free the integrity portion of a bio. Usually
* called from bio_free().
*/
void bio_integrity_free(struct bio *bio, struct bio_set *bs)
void bio_integrity_free(struct bio *bio)
{
struct bio_integrity_payload *bip = bio->bi_integrity;
struct bio_set *bs = bio->bi_pool;
if (!bs)
bs = fs_bio_set;
BUG_ON(bip == NULL);
@ -730,19 +717,18 @@ EXPORT_SYMBOL(bio_integrity_split);
* @bio: New bio
* @bio_src: Original bio
* @gfp_mask: Memory allocation mask
* @bs: bio_set to allocate bip from
*
* Description: Called to allocate a bip when cloning a bio
*/
int bio_integrity_clone(struct bio *bio, struct bio *bio_src,
gfp_t gfp_mask, struct bio_set *bs)
gfp_t gfp_mask)
{
struct bio_integrity_payload *bip_src = bio_src->bi_integrity;
struct bio_integrity_payload *bip;
BUG_ON(bip_src == NULL);
bip = bio_integrity_alloc_bioset(bio, gfp_mask, bip_src->bip_vcnt, bs);
bip = bio_integrity_alloc(bio, gfp_mask, bip_src->bip_vcnt);
if (bip == NULL)
return -EIO;

6
fs/bio.c
View File

@ -241,7 +241,7 @@ void bio_free(struct bio *bio, struct bio_set *bs)
bvec_free_bs(bs, bio->bi_io_vec, BIO_POOL_IDX(bio));
if (bio_integrity(bio))
bio_integrity_free(bio, bs);
bio_integrity_free(bio);
/*
* If we have front padding, adjust the bio pointer before freeing
@ -341,7 +341,7 @@ EXPORT_SYMBOL(bio_alloc);
static void bio_kmalloc_destructor(struct bio *bio)
{
if (bio_integrity(bio))
bio_integrity_free(bio, fs_bio_set);
bio_integrity_free(bio);
kfree(bio);
}
@ -480,7 +480,7 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
if (bio_integrity(bio)) {
int ret;
ret = bio_integrity_clone(b, bio, gfp_mask, fs_bio_set);
ret = bio_integrity_clone(b, bio, gfp_mask);
if (ret < 0) {
bio_put(b);

9
include/linux/bio.h
View File

@ -505,9 +505,8 @@ static inline struct bio *bio_list_get(struct bio_list *bl)
#define bio_integrity(bio) (bio->bi_integrity != NULL)
extern struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *, gfp_t, unsigned int, struct bio_set *);
extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
extern void bio_integrity_free(struct bio *, struct bio_set *);
extern void bio_integrity_free(struct bio *);
extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
extern int bio_integrity_enabled(struct bio *bio);
extern int bio_integrity_set_tag(struct bio *, void *, unsigned int);
@ -517,7 +516,7 @@ extern void bio_integrity_endio(struct bio *, int);
extern void bio_integrity_advance(struct bio *, unsigned int);
extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int);
extern void bio_integrity_split(struct bio *, struct bio_pair *, int);
extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t, struct bio_set *);
extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);
extern int bioset_integrity_create(struct bio_set *, int);
extern void bioset_integrity_free(struct bio_set *);
extern void bio_integrity_init(void);
@ -549,13 +548,13 @@ static inline int bio_integrity_prep(struct bio *bio)
return 0;
}
static inline void bio_integrity_free(struct bio *bio, struct bio_set *bs)
static inline void bio_integrity_free(struct bio *bio)
{
return;
}
static inline int bio_integrity_clone(struct bio *bio, struct bio *bio_src,
gfp_t gfp_mask, struct bio_set *bs)
gfp_t gfp_mask)
{
return 0;
}