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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-19 18:57:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-19 18:57:09 -0700
commit133bb59585140747fd3938002670cb395f40dc76 (patch)
treea0fe424f3dd0a1cc91102ef59b7662be4b915609 /block/bounce.c
parent590dca3a71875461e8fea3013af74386945191b2 (diff)
parent994518799930fc363d47cb7cf0d1abed1790bf16 (diff)
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe: "This is a bit bigger than it should be, but I could (did) not want to send it off last week due to both wanting extra testing, and expecting a fix for the bounce regression as well. In any case, this contains: - Fix for the blk-merge.c compilation warning on gcc 5.x from me. - A set of back/front SG gap merge fixes, from me and from Sagi. This ensures that we honor SG gapping for integrity payloads as well. - Two small fixes for null_blk from Matias, fixing a leak and a capacity propagation issue. - A blkcg fix from Tejun, fixing a NULL dereference. - A fast clone optimization from Ming, fixing a performance regression since the arbitrarily sized bio's were introduced. - Also from Ming, a regression fix for bouncing IOs" * 'for-linus' of git://git.kernel.dk/linux-block: block: fix bounce_end_io block: blk-merge: fast-clone bio when splitting rw bios block: blkg_destroy_all() should clear q->root_blkg and ->root_rl.blkg block: Copy a user iovec if it includes gaps block: Refuse adding appending a gapped integrity page to a bio block: Refuse request/bio merges with gaps in the integrity payload block: Check for gaps on front and back merges null_blk: fix wrong capacity when bs is not 512 bytes null_blk: fix memory leak on cleanup block: fix bogus compiler warnings in blk-merge.c
Diffstat (limited to 'block/bounce.c')
-rw-r--r--block/bounce.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/block/bounce.c b/block/bounce.c
index 0611aea1cfe9..1cb5dd3a5da1 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -128,12 +128,14 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool)
struct bio *bio_orig = bio->bi_private;
struct bio_vec *bvec, *org_vec;
int i;
+ int start = bio_orig->bi_iter.bi_idx;
/*
* free up bounce indirect pages used
*/
bio_for_each_segment_all(bvec, bio, i) {
- org_vec = bio_orig->bi_io_vec + i;
+ org_vec = bio_orig->bi_io_vec + i + start;
+
if (bvec->bv_page == org_vec->bv_page)
continue;