[PATCH] csa: Extended system accounting over taskstats

Add extended system accounting handling over taskstats interface.  A
CONFIG_TASK_XACCT flag is created to enable the extended accounting code.

Signed-off-by: Jay Lan <jlan@sgi.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Chris Sturtivant <csturtiv@sgi.com>
Cc: Tony Ernst <tee@sgi.com>
Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/taskstats.h b/include/linux/taskstats.h
index af93a63a5092..3d2c304886b0 100644
--- a/include/linux/taskstats.h
+++ b/include/linux/taskstats.h
@@ -107,6 +107,17 @@ struct taskstats {
         __u64   ac_minflt;              /* Minor Page Fault */
         __u64   ac_majflt;              /* Major Page Fault */
         /* Basic Accounting Fields end */
+
+        /* Extended accounting fields start */
+        __u64   acct_rss_mem1;          /* accumulated rss usage */
+        __u64   acct_vm_mem1;           /* accumulated virtual memory usage */
+        __u64   hiwater_rss;            /* High-watermark of RSS usage */
+        __u64   hiwater_vm;             /* High-water virtual memory usage */
+        __u64   read_char;              /* bytes read */
+        __u64   write_char;             /* bytes written */
+        __u64   read_syscalls;          /* read syscalls */
+        __u64   write_syscalls;         /* write syscalls */
+        /* Extended accounting fields end */
 };
 
 
diff --git a/include/linux/tsacct_kern.h b/include/linux/tsacct_kern.h
index 7e8196a02118..74102dcae67a 100644
--- a/include/linux/tsacct_kern.h
+++ b/include/linux/tsacct_kern.h
@@ -16,4 +16,13 @@ static inline void bacct_add_tsk(struct taskstats *stats, struct task_struct *ts
 {}
 #endif /* CONFIG_TASKSTATS */
 
+#ifdef CONFIG_TASK_XACCT
+extern void xacct_add_tsk(struct taskstats *stats, struct task_struct *p);
+#else
+static inline void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
+{}
+#endif /* CONFIG_TASK_XACCT */
+
 #endif
+
+