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authorKent Overstreet <koverstreet@google.com>2012-09-05 15:22:02 -0700
committerKent Overstreet <koverstreet@google.com>2013-03-23 14:26:30 -0700
commitcb34e057ad22a1c2c6f2cb6cd1cbd05cc2f28f28 (patch)
tree4077b8e6e88bc7c5eb4cd738b4203401daba28a9 /drivers/md/dm-crypt.c
parentd74c6d514fe314b8bdab58b487b25992291577ec (diff)
downloadop-kernel-dev-cb34e057ad22a1c2c6f2cb6cd1cbd05cc2f28f28.zip
op-kernel-dev-cb34e057ad22a1c2c6f2cb6cd1cbd05cc2f28f28.tar.gz
block: Convert some code to bio_for_each_segment_all()
More prep work for immutable bvecs: A few places in the code were either open coding or using the wrong version - fix. After we introduce the bvec iter, it'll no longer be possible to modify the biovec through bio_for_each_segment_all() - it doesn't increment a pointer to the current bvec, you pass in a struct bio_vec (not a pointer) which is updated with what the current biovec would be (taking into account bi_bvec_done and bi_size). So because of that it's more worthwhile to be consistent about bio_for_each_segment()/bio_for_each_segment_all() usage. Signed-off-by: Kent Overstreet <koverstreet@google.com> CC: Jens Axboe <axboe@kernel.dk> CC: NeilBrown <neilb@suse.de> CC: Alasdair Kergon <agk@redhat.com> CC: dm-devel@redhat.com CC: Alexander Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/md/dm-crypt.c')
-rw-r--r--drivers/md/dm-crypt.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 13c1548..6d2d41a 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -858,8 +858,7 @@ static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone)
unsigned int i;
struct bio_vec *bv;
- for (i = 0; i < clone->bi_vcnt; i++) {
- bv = bio_iovec_idx(clone, i);
+ bio_for_each_segment_all(bv, clone, i) {
BUG_ON(!bv->bv_page);
mempool_free(bv->bv_page, cc->page_pool);
bv->bv_page = NULL;
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