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-rw-r--r--fs/bio-integrity.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 29696b78d1f4..1c2ce0c87711 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -182,6 +182,9 @@ static int bdev_integrity_enabled(struct block_device *bdev, int rw)
182 */ 182 */
183int bio_integrity_enabled(struct bio *bio) 183int bio_integrity_enabled(struct bio *bio)
184{ 184{
185 if (!bio_is_rw(bio))
186 return 0;
187
185 /* Already protected? */ 188 /* Already protected? */
186 if (bio_integrity(bio)) 189 if (bio_integrity(bio))
187 return 0; 190 return 0;
@@ -309,10 +312,9 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate)
309{ 312{
310 struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev); 313 struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
311 struct blk_integrity_exchg bix; 314 struct blk_integrity_exchg bix;
312 struct bio_vec bv; 315 struct bio_vec *bv;
313 struct bvec_iter iter;
314 sector_t sector; 316 sector_t sector;
315 unsigned int sectors, ret = 0; 317 unsigned int sectors, ret = 0, i;
316 void *prot_buf = bio->bi_integrity->bip_buf; 318 void *prot_buf = bio->bi_integrity->bip_buf;
317 319
318 if (operate) 320 if (operate)
@@ -323,16 +325,16 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate)
323 bix.disk_name = bio->bi_bdev->bd_disk->disk_name; 325 bix.disk_name = bio->bi_bdev->bd_disk->disk_name;
324 bix.sector_size = bi->sector_size; 326 bix.sector_size = bi->sector_size;
325 327
326 bio_for_each_segment(bv, bio, iter) { 328 bio_for_each_segment_all(bv, bio, i) {
327 void *kaddr = kmap_atomic(bv.bv_page); 329 void *kaddr = kmap_atomic(bv->bv_page);
328 bix.data_buf = kaddr + bv.bv_offset; 330 bix.data_buf = kaddr + bv->bv_offset;
329 bix.data_size = bv.bv_len; 331 bix.data_size = bv->bv_len;
330 bix.prot_buf = prot_buf; 332 bix.prot_buf = prot_buf;
331 bix.sector = sector; 333 bix.sector = sector;
332 334
333 if (operate) { 335 if (operate)
334 bi->generate_fn(&bix); 336 bi->generate_fn(&bix);
335 } else { 337 else {
336 ret = bi->verify_fn(&bix); 338 ret = bi->verify_fn(&bix);
337 if (ret) { 339 if (ret) {
338 kunmap_atomic(kaddr); 340 kunmap_atomic(kaddr);
@@ -340,7 +342,7 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate)
340 } 342 }
341 } 343 }
342 344
343 sectors = bv.bv_len / bi->sector_size; 345 sectors = bv->bv_len / bi->sector_size;
344 sector += sectors; 346 sector += sectors;
345 prot_buf += sectors * bi->tuple_size; 347 prot_buf += sectors * bi->tuple_size;
346 348