From 4a7864ca638e0a38307962ee8ef122822a351b65 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Sun, 10 Dec 2006 02:19:53 -0800
Subject: [PATCH] io-accounting: via taskstats

Deliver IO accounting via taskstats.

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>
---
 include/linux/taskstats.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/taskstats.h b/include/linux/taskstats.h
index 15c64037be1b..3fced4798255 100644
--- a/include/linux/taskstats.h
+++ b/include/linux/taskstats.h
@@ -31,7 +31,7 @@
  */
 
 
-#define TASKSTATS_VERSION	2
+#define TASKSTATS_VERSION	3
 #define TS_COMM_LEN		32	/* should be >= TASK_COMM_LEN
 					 * in linux/sched.h */
 
@@ -140,6 +140,12 @@ struct taskstats {
 	__u64	read_syscalls;		/* read syscalls */
 	__u64	write_syscalls;		/* write syscalls */
 	/* Extended accounting fields end */
+
+#define TASKSTATS_HAS_IO_ACCOUNTING
+	/* Per-task storage I/O accounting starts */
+	__u64	read_bytes;		/* bytes of read I/O */
+	__u64	write_bytes;		/* bytes of write I/O */
+	__u64	cancelled_write_bytes;	/* bytes of cancelled write I/O */
 };
 
 
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