[PATCH 3/8 ] ltt for 2.6.10 : kernel/ events

From: Karim Yaghmour
Date: Fri Jan 14 2005 - 01:16:53 EST


signed-off-by: Karim Yaghmour (karim@xxxxxxxxxxx)

--- linux-2.6.10-relayfs/kernel/exit.c 2004-12-24 16:35:27.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/exit.c 2005-01-13 22:21:51.000000000 -0500
@@ -24,6 +24,7 @@
#include <linux/profile.h>
#include <linux/mount.h>
#include <linux/proc_fs.h>
+#include <linux/ltt-events.h>
#include <linux/mempolicy.h>
#include <linux/syscalls.h>

@@ -811,6 +812,8 @@ fastcall NORET_TYPE void do_exit(long co
acct_process(code);
__exit_mm(tsk);

+ ltt_ev_process_exit(0, 0);
+
exit_sem(tsk);
__exit_files(tsk);
__exit_fs(tsk);
@@ -1316,6 +1319,8 @@ static long do_wait(pid_t pid, int optio
struct task_struct *tsk;
int flag, retval;

+ ltt_ev_process(LTT_EV_PROCESS_WAIT, pid, 0);
+
add_wait_queue(&current->wait_chldexit,&wait);
repeat:
/*
--- linux-2.6.10-relayfs/kernel/fork.c 2004-12-24 16:33:59.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/fork.c 2005-01-13 22:21:51.000000000 -0500
@@ -39,6 +39,7 @@
#include <linux/audit.h>
#include <linux/profile.h>
#include <linux/rmap.h>
+#include <linux/ltt-events.h>

#include <asm/pgtable.h>
#include <asm/pgalloc.h>
@@ -1159,6 +1160,8 @@ long do_fork(unsigned long clone_flags,
ptrace_notify ((trace << 8) | SIGTRAP);
}

+ ltt_ev_process(LTT_EV_PROCESS_FORK, p->pid, 0);
+
if (clone_flags & CLONE_VFORK) {
wait_for_completion(&vfork);
if (unlikely (current->ptrace & PT_TRACE_VFORK_DONE))
--- linux-2.6.10-relayfs/kernel/irq/handle.c 2004-12-24 16:35:50.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/irq/handle.c 2005-01-13 22:21:51.000000000 -0500
@@ -11,6 +11,7 @@
#include <linux/random.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
+#include <linux/ltt-events.h>

#include "internals.h"

@@ -91,6 +92,8 @@ fastcall int handle_IRQ_event(unsigned i
{
int ret, retval = 0, status = 0;

+ ltt_ev_irq_entry(irq, !(user_mode(regs)));
+
if (!(action->flags & SA_INTERRUPT))
local_irq_enable();

@@ -106,6 +109,8 @@ fastcall int handle_IRQ_event(unsigned i
add_interrupt_randomness(irq);
local_irq_disable();

+ ltt_ev_irq_exit();
+
return retval;
}

--- linux-2.6.10-relayfs/kernel/itimer.c 2004-12-24 16:34:32.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/itimer.c 2005-01-13 22:21:51.000000000 -0500
@@ -11,6 +11,7 @@
#include <linux/interrupt.h>
#include <linux/syscalls.h>
#include <linux/time.h>
+#include <linux/ltt-events.h>

#include <asm/uaccess.h>

@@ -69,6 +70,8 @@ void it_real_fn(unsigned long __data)
struct task_struct * p = (struct task_struct *) __data;
unsigned long interval;

+ ltt_ev_timer(LTT_EV_TIMER_EXPIRED, 0, 0, 0);
+
send_group_sig_info(SIGALRM, SEND_SIG_PRIV, p);
interval = p->it_real_incr;
if (interval) {
@@ -88,6 +91,7 @@ int do_setitimer(int which, struct itime
j = timeval_to_jiffies(&value->it_value);
if (ovalue && (k = do_getitimer(which, ovalue)) < 0)
return k;
+ ltt_ev_timer(LTT_EV_TIMER_SETITIMER, which, i, j);
switch (which) {
case ITIMER_REAL:
del_timer_sync(&current->real_timer);
--- linux-2.6.10-relayfs/kernel/Makefile 2004-12-24 16:34:26.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/Makefile 2005-01-13 22:21:56.000000000 -0500
@@ -17,6 +17,7 @@ obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_KALLSYMS) += kallsyms.o
obj-$(CONFIG_PM) += power/
obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
+obj-$(CONFIG_LTT) += ltt-core.o
obj-$(CONFIG_COMPAT) += compat.o
obj-$(CONFIG_IKCONFIG) += configs.o
obj-$(CONFIG_IKCONFIG_PROC) += configs.o
--- linux-2.6.10-relayfs/kernel/sched.c 2004-12-24 16:35:24.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/sched.c 2005-01-13 22:21:51.000000000 -0500
@@ -44,6 +44,7 @@
#include <linux/seq_file.h>
#include <linux/syscalls.h>
#include <linux/times.h>
+#include <linux/ltt-events.h>
#include <asm/tlb.h>

#include <asm/unistd.h>
@@ -317,6 +318,8 @@ static runqueue_t *task_rq_lock(task_t *
{
struct runqueue *rq;

+ ltt_ev_process(LTT_EV_PROCESS_WAKEUP, p->pid, p->state);
+
repeat_lock_task:
local_irq_save(*flags);
rq = task_rq(p);
@@ -2685,6 +2688,7 @@ switch_tasks:
++*switch_count;

prepare_arch_switch(rq, next);
+ ltt_ev_schedchange(prev, next);
prev = context_switch(rq, prev, next);
barrier();

--- linux-2.6.10-relayfs/kernel/signal.c 2004-12-24 16:34:32.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/signal.c 2005-01-13 22:21:51.000000000 -0500
@@ -22,6 +22,7 @@
#include <linux/security.h>
#include <linux/syscalls.h>
#include <linux/ptrace.h>
+#include <linux/ltt-events.h>
#include <asm/param.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
@@ -833,6 +834,8 @@ specific_send_sig_info(int sig, struct s
if (sig_ignored(t, sig))
goto out;

+ ltt_ev_process(LTT_EV_PROCESS_SIGNAL, sig, t->pid);
+
/* Support queueing exactly one non-rt signal, so that we
can get more detailed information about the cause of
the signal. */
--- linux-2.6.10-relayfs/kernel/softirq.c 2004-12-24 16:34:26.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/softirq.c 2005-01-13 22:21:51.000000000 -0500
@@ -16,6 +16,7 @@
#include <linux/cpu.h>
#include <linux/kthread.h>
#include <linux/rcupdate.h>
+#include <linux/ltt-events.h>

#include <asm/irq.h>
/*
@@ -92,6 +93,7 @@ restart:

do {
if (pending & 1) {
+ ltt_ev_soft_irq(LTT_EV_SOFT_IRQ_SOFT_IRQ, (h - softirq_vec));
h->action(h);
rcu_bh_qsctr_inc(cpu);
}
@@ -246,6 +248,9 @@ static void tasklet_action(struct softir
if (!atomic_read(&t->count)) {
if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state))
BUG();
+
+ ltt_ev_soft_irq(LTT_EV_SOFT_IRQ_TASKLET_ACTION, (unsigned long) (t->func));
+
t->func(t->data);
tasklet_unlock(t);
continue;
@@ -279,6 +284,9 @@ static void tasklet_hi_action(struct sof
if (!atomic_read(&t->count)) {
if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state))
BUG();
+
+ ltt_ev_soft_irq(LTT_EV_SOFT_IRQ_TASKLET_HI_ACTION, (unsigned long) (t->func));
+
t->func(t->data);
tasklet_unlock(t);
continue;
--- linux-2.6.10-relayfs/kernel/timer.c 2004-12-24 16:35:24.000000000 -0500
+++ linux-2.6.10-relayfs-ltt/kernel/timer.c 2005-01-13 22:21:51.000000000 -0500
@@ -32,6 +32,7 @@
#include <linux/jiffies.h>
#include <linux/cpu.h>
#include <linux/syscalls.h>
+#include <linux/ltt-events.h>

#include <asm/uaccess.h>
#include <asm/unistd.h>
@@ -923,6 +924,8 @@ static void run_timer_softirq(struct sof
{
tvec_base_t *base = &__get_cpu_var(tvec_bases);

+ ltt_ev(LTT_EV_KERNEL_TIMER, NULL);
+
if (time_after_eq(jiffies, base->timer_jiffies))
__run_timers(base);
}
@@ -1081,6 +1084,7 @@ asmlinkage long sys_getegid(void)

static void process_timeout(unsigned long __data)
{
+ ltt_ev_timer(LTT_EV_TIMER_EXPIRED, 0, 0, 0);
wake_up_process((task_t *)__data);
}


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