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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /block/blk-merge.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'block/blk-merge.c')
-rw-r--r--block/blk-merge.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index b966db8f3..261353166 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -7,6 +7,8 @@
#include <linux/blkdev.h>
#include <linux/scatterlist.h>
+#include <trace/events/block.h>
+
#include "blk.h"
static struct bio *blk_bio_discard_split(struct request_queue *q,
@@ -187,6 +189,7 @@ void blk_queue_split(struct request_queue *q, struct bio **bio,
split->bi_rw |= REQ_NOMERGE;
bio_chain(split, *bio);
+ trace_block_split(q, split, (*bio)->bi_iter.bi_sector);
generic_make_request(*bio);
*bio = split;
}
@@ -301,7 +304,6 @@ static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
struct bio *nxt)
{
struct bio_vec end_bv = { NULL }, nxt_bv;
- struct bvec_iter iter;
if (!blk_queue_cluster(q))
return 0;
@@ -313,11 +315,8 @@ static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
if (!bio_has_data(bio))
return 1;
- bio_for_each_segment(end_bv, bio, iter)
- if (end_bv.bv_len == iter.bi_size)
- break;
-
- nxt_bv = bio_iovec(nxt);
+ bio_get_last_bvec(bio, &end_bv);
+ bio_get_first_bvec(nxt, &nxt_bv);
if (!BIOVEC_PHYS_MERGEABLE(&end_bv, &nxt_bv))
return 0;