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| author | Andrew Morton <akpm@osdl.org> | 2006-12-10 02:19:35 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-10 09:55:41 -0800 |
| commit | faccbd4b26df7bd977cee33d4145155d0ef95c87 (patch) | |
| tree | ea7a472bd00ada4c5391cfd18e5518ac7c180327 /block | |
| parent | e08748ce01e02f0ec154b141f392ccb9555333f4 (diff) | |
| download | linux-faccbd4b26df7bd977cee33d4145155d0ef95c87.tar.gz linux-faccbd4b26df7bd977cee33d4145155d0ef95c87.tar.bz2 linux-faccbd4b26df7bd977cee33d4145155d0ef95c87.zip | |
[PATCH] io-accounting: read accounting
Wire up read accounting for block devices, within submit_bio().
Cc: Jay Lan <jlan@sgi.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Chris Sturtivant <csturtiv@sgi.com>
Cc: Tony Ernst <tee@sgi.com>
Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
Cc: David Wright <daw@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/ll_rw_blk.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 4f83fd922377..785e61c9a810 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -25,6 +25,7 @@ #include <linux/slab.h> #include <linux/swap.h> #include <linux/writeback.h> +#include <linux/task_io_accounting_ops.h> #include <linux/interrupt.h> #include <linux/cpu.h> #include <linux/blktrace_api.h> @@ -3235,10 +3236,12 @@ void submit_bio(int rw, struct bio *bio) BIO_BUG_ON(!bio->bi_size); BIO_BUG_ON(!bio->bi_io_vec); bio->bi_rw |= rw; - if (rw & WRITE) + if (rw & WRITE) { count_vm_events(PGPGOUT, count); - else + } else { + task_io_account_read(bio->bi_size); count_vm_events(PGPGIN, count); + } if (unlikely(block_dump)) { char b[BDEVNAME_SIZE]; |