A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

[PATCH] device-mapper statistics: basic

Browse source 
Record basic I/O statistics for mapped devices.

Signed-off-by: Kevin Corry <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Kevin Corry 2006-02-01 03:04:52 -08:00 • committed by Linus Torvalds
commit 12f03a49cf
1 changed files with 4 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/md/dm.c
View file

@ -573,10 +573,14 @@ static void __split_bio(struct mapped_device *md, struct bio *bio)
static int dm_request(request_queue_t *q, struct bio *bio)
{
int r;
int rw = bio_data_dir(bio);
struct mapped_device *md = q->queuedata;
down_read(&md->io_lock);
disk_stat_inc(dm_disk(md), ios[rw]);
disk_stat_add(dm_disk(md), sectors[rw], bio_sectors(bio));
/*
* If we're suspended we have to queue
* this io for later.