From 0bc69973066d62f70ce60bd6762b5cb75a699159 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Tue, 8 Apr 2014 22:43:44 -0400 Subject: [PATCH] block: Fix integrity verification Commit bf36f9cfa6d3d caused a regression by effectively reverting Nic's fix from 5837c80e870b that ensures we traverse the full bio_vec list upon completion. Signed-off-by: Martin K. Petersen Cc: Nicholas Bellinger Cc: Gu Zheng Signed-off-by: Jens Axboe --- fs/bio-integrity.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 29696b78d1f4..b355b98dbf1b 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -309,10 +309,9 @@ 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 bvec_iter iter; + struct bio_vec *bv; sector_t sector; - unsigned int sectors, ret = 0; + unsigned int sectors, ret = 0, i; void *prot_buf = bio->bi_integrity->bip_buf; if (operate) @@ -323,16 +322,16 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate) bix.disk_name = bio->bi_bdev->bd_disk->disk_name; bix.sector_size = bi->sector_size; - bio_for_each_segment(bv, bio, iter) { - void *kaddr = kmap_atomic(bv.bv_page); - bix.data_buf = kaddr + bv.bv_offset; - bix.data_size = bv.bv_len; + bio_for_each_segment_all(bv, bio, i) { + void *kaddr = kmap_atomic(bv->bv_page); + bix.data_buf = kaddr + bv->bv_offset; + bix.data_size = bv->bv_len; bix.prot_buf = prot_buf; bix.sector = sector; - if (operate) { + if (operate) bi->generate_fn(&bix); - } else { + else { ret = bi->verify_fn(&bix); if (ret) { kunmap_atomic(kaddr); @@ -340,7 +339,7 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate) } } - sectors = bv.bv_len / bi->sector_size; + sectors = bv->bv_len / bi->sector_size; sector += sectors; prot_buf += sectors * bi->tuple_size; -- 2.30.2