diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/bio-integrity.c | 13 | ||||
| -rw-r--r-- | fs/bio.c | 15 |
2 files changed, 21 insertions, 7 deletions
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 0bad24d..0129b78 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -114,6 +114,14 @@ void bio_integrity_free(struct bio *bio) } EXPORT_SYMBOL(bio_integrity_free); +static inline unsigned int bip_integrity_vecs(struct bio_integrity_payload *bip) +{ + if (bip->bip_slab == BIO_POOL_NONE) + return BIP_INLINE_VECS; + + return bvec_nr_vecs(bip->bip_slab); +} + /** * bio_integrity_add_page - Attach integrity metadata * @bio: bio to update @@ -129,7 +137,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page, struct bio_integrity_payload *bip = bio->bi_integrity; struct bio_vec *iv; - if (bip->bip_vcnt >= bvec_nr_vecs(bip->bip_slab)) { + if (bip->bip_vcnt >= bip_integrity_vecs(bip)) { printk(KERN_ERR "%s: bip_vec full\n", __func__); return 0; } @@ -226,7 +234,8 @@ unsigned int bio_integrity_tag_size(struct bio *bio) } EXPORT_SYMBOL(bio_integrity_tag_size); -int bio_integrity_tag(struct bio *bio, void *tag_buf, unsigned int len, int set) +static int bio_integrity_tag(struct bio *bio, void *tag_buf, unsigned int len, + int set) { struct bio_integrity_payload *bip = bio->bi_integrity; struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev); @@ -611,7 +611,6 @@ EXPORT_SYMBOL(bio_clone_fast); struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, struct bio_set *bs) { - unsigned nr_iovecs = 0; struct bvec_iter iter; struct bio_vec bv; struct bio *bio; @@ -638,10 +637,7 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, * __bio_clone_fast() anyways. */ - bio_for_each_segment(bv, bio_src, iter) - nr_iovecs++; - - bio = bio_alloc_bioset(gfp_mask, nr_iovecs, bs); + bio = bio_alloc_bioset(gfp_mask, bio_segments(bio_src), bs); if (!bio) return NULL; @@ -650,9 +646,18 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector; bio->bi_iter.bi_size = bio_src->bi_iter.bi_size; + if (bio->bi_rw & REQ_DISCARD) + goto integrity_clone; + + if (bio->bi_rw & REQ_WRITE_SAME) { + bio->bi_io_vec[bio->bi_vcnt++] = bio_src->bi_io_vec[0]; + goto integrity_clone; + } + bio_for_each_segment(bv, bio_src, iter) bio->bi_io_vec[bio->bi_vcnt++] = bv; +integrity_clone: if (bio_integrity(bio_src)) { int ret; |