This patch is to replace "[patch 2/3] add CSA accounting to
taskstats" posted on 7/31.
This patch adds 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 <[email protected]>
Index: linux/include/linux/taskstats.h
===================================================================
--- linux.orig/include/linux/taskstats.h 2006-08-02 16:03:31.000000000 -0700
+++ linux/include/linux/taskstats.h 2006-08-02 19:09:02.880918552 -0700
@@ -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 */
};
Index: linux/init/Kconfig
===================================================================
--- linux.orig/init/Kconfig 2006-08-02 14:52:08.000000000 -0700
+++ linux/init/Kconfig 2006-08-02 17:12:24.937020076 -0700
@@ -182,6 +182,15 @@ config TASK_DELAY_ACCT
Say N if unsure.
+config TASK_XACCT
+ bool "Enable extended accounting over taskstats (EXPERIMENTAL)"
+ depends on TASKSTATS
+ help
+ Collect extended task accounting data and send the data
+ to userland for processing over the taskstats interface.
+
+ Say N if unsure.
+
config SYSCTL
bool "Sysctl support" if EMBEDDED
default y
Index: linux/kernel/taskstats.c
===================================================================
--- linux.orig/kernel/taskstats.c 2006-08-02 15:45:36.000000000 -0700
+++ linux/kernel/taskstats.c 2006-08-02 17:15:11.618985115 -0700
@@ -20,6 +20,7 @@
#include <linux/taskstats_kern.h>
#include <linux/tsacct_kern.h>
#include <linux/delayacct.h>
+#include <linux/tsacct_kern.h>
#include <linux/cpumask.h>
#include <linux/percpu.h>
#include <net/genetlink.h>
@@ -204,6 +205,9 @@ static int fill_pid(pid_t pid, struct ta
stats->version = TASKSTATS_VERSION;
bacct_add_tsk(stats, tsk);
+ /* fill in extended acct fields */
+ xacct_add_tsk(stats, tsk);
+
/* Define err: label here if needed */
put_task_struct(tsk);
return rc;
Index: linux/include/linux/tsacct_kern.h
===================================================================
--- linux.orig/include/linux/tsacct_kern.h 2006-08-02 16:39:56.000000000 -0700
+++ linux/include/linux/tsacct_kern.h 2006-08-02 19:08:17.624349288 -0700
@@ -16,4 +16,13 @@ static inline void bacct_add_tsk(struct
{}
#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
+
+
Index: linux/kernel/tsacct.c
===================================================================
--- linux.orig/kernel/tsacct.c 2006-08-02 16:40:42.000000000 -0700
+++ linux/kernel/tsacct.c 2006-08-02 19:16:32.806622818 -0700
@@ -67,3 +67,22 @@ void bacct_add_tsk(struct taskstats *sta
strncpy(stats->ac_comm, tsk->comm, sizeof(stats->ac_comm));
}
+
+#ifdef CONFIG_TASK_XACCT
+/*
+ * fill in extended accounting fields
+ */
+void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
+{
+ stats->acct_rss_mem1 = p->acct_rss_mem1;
+ stats->acct_vm_mem1 = p->acct_vm_mem1;
+ if (p->mm) {
+ stats->hiwater_rss = p->mm->hiwater_rss;
+ stats->hiwater_vm = p->mm->hiwater_vm;
+ }
+ stats->read_char = p->rchar;
+ stats->write_char = p->wchar;
+ stats->read_syscalls = p->syscr;
+ stats->write_syscalls = p->syscw;
+}
+#endif
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