The commit is pushed to "branch-rh7-3.10.0-327.10.1.vz7.12.x-ovz" and will
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-327.10.1.vz7.12.2
------>
commit 67c3f482046485d6df3771d52c81476643d7213f
Author: Maxim Patlasov <[email protected]>
Date: Wed Mar 16 17:14:42 2016 +0400
ploop: update gendisk disk_stats
ploop must update I/O statistics counters to make /sys/block/ploopN/stat
looks reasonable. The patch do it similarly to dm/dm.c.
https://jira.sw.ru/browse/PSBM-41247
Signed-off-by: Maxim Patlasov <[email protected]>
Acked-by: Dmitry Monakhov <[email protected]>
---
drivers/block/ploop/dev.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/block/ploop/dev.c b/drivers/block/ploop/dev.c
index bad539a..feb56c7 100644
--- a/drivers/block/ploop/dev.c
+++ b/drivers/block/ploop/dev.c
@@ -791,7 +791,8 @@ static void ploop_make_request(struct request_queue *q,
struct bio *bio)
{
struct bio * nbio;
struct ploop_device * plo = q->queuedata;
- unsigned long rw;
+ unsigned long rw = bio_data_dir(bio);
+ int cpu;
LIST_HEAD(drop_list);
trace_make_request(bio);
@@ -801,6 +802,11 @@ static void ploop_make_request(struct request_queue *q,
struct bio *bio)
BUG_ON(bio->bi_idx);
BUG_ON(bio->bi_size & 511);
+ cpu = part_stat_lock();
+ part_stat_inc(cpu, &plo->disk->part0, ios[rw]);
+ part_stat_add(cpu, &plo->disk->part0, sectors[rw], bio_sectors(bio));
+ part_stat_unlock();
+
if (unlikely(bio->bi_size == 0)) {
/* Is it possible? This makes sense if the request is
* marked as FLUSH, otherwise just warn and complete. */
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