From cda22646adaa453519fac28222f20b0d73aa8562 Mon Sep 17 00:00:00 2001 From: Mike Krinkin Date: Thu, 3 Dec 2015 17:32:30 +0300 Subject: [PATCH] block: add call to split trace point There is a split tracepoint that is supposed to be called when bio is splitted, and it was called in bio_split function until commit 4b1faf931650d4a35b2a ("block: Kill bio_pair_split()"). But now, no one reports splits, so this patch adds call to trace_block_split back in blk_queue_split right after split. Signed-off-by: Mike Krinkin Signed-off-by: Jens Axboe --- block/blk-merge.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/block/blk-merge.c b/block/blk-merge.c index 41a55ba0d78e..0e5643a5d1c3 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -7,6 +7,8 @@ #include #include +#include + #include "blk.h" static struct bio *blk_bio_discard_split(struct request_queue *q, @@ -159,6 +161,7 @@ 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; } -- 2.20.1