block: Remove bip_buf

bip_buf is not really needed so we can remove it.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 367bb24bb9f1..e84f7fb8694b 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -101,7 +101,8 @@ void bio_integrity_free(struct bio *bio)
         struct bio_set *bs = bio->bi_pool;
 
         if (bip->bip_owns_buf)
-                kfree(bip->bip_buf);
+                kfree(page_address(bip->bip_vec->bv_page) +
+                      bip->bip_vec->bv_offset);
 
         if (bs) {
                 if (bip->bip_slab != BIO_POOL_NONE)
@@ -219,14 +220,16 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate)
         struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
         struct blk_integrity_exchg bix;
         struct bio_vec *bv;
+        struct bio_integrity_payload *bip = bio_integrity(bio);
         sector_t sector;
         unsigned int sectors, ret = 0, i;
-        void *prot_buf = bio_integrity(bio)->bip_buf;
+        void *prot_buf = page_address(bip->bip_vec->bv_page) +
+                bip->bip_vec->bv_offset;
 
         if (operate)
                 sector = bio->bi_iter.bi_sector;
         else
-                sector = bio_integrity(bio)->bip_iter.bi_sector;
+                sector = bip->bip_iter.bi_sector;
 
         bix.disk_name = bio->bi_bdev->bd_disk->disk_name;
         bix.sector_size = bi->sector_size;
@@ -321,7 +324,6 @@ int bio_integrity_prep(struct bio *bio)
         }
 
         bip->bip_owns_buf = 1;
-        bip->bip_buf = buf;
         bip->bip_iter.bi_size = len;
         bip->bip_iter.bi_sector = bio->bi_iter.bi_sector;