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LTT basic instrumentation

PATCH New Karim Yaghmour 1 participant 1 message Dec 15, 2004

Subsystems (12)
Networking Memory management VFS MM core +8 more subsystems
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Karim Yaghmour

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PATCH 3/4 LTT basic instrumentation

All instances of "TRACE_XXX" have been substituted with "ltt_ev_XXX".

Signed-off-by Karim Yaghmour <[email protected]>
fs/buffer.c +3 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/fs/buffer.c linux-2.6.10-rc3-bk8-relayfs-ltt/fs/buffer.c
@@ -39,6 +39,7 @@
 #include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/bitops.h>
+#include <linux/ltt-events.h>
 
 static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
 static void invalidate_bh_lrus(void);

@@ -87,7 +88,9 @@ void fastcall unlock_buffer(struct buffe
  */
 void __wait_on_buffer(struct buffer_head * bh)
 {
+	ltt_ev_file_system(LTT_EV_FILE_SYSTEM_BUF_WAIT_START, 0, 0, NULL);
 	wait_on_bit(&bh->b_state, BH_Lock, sync_buffer, TASK_UNINTERRUPTIBLE);
+	ltt_ev_file_system(LTT_EV_FILE_SYSTEM_BUF_WAIT_END, 0, 0, NULL);
 }
 
 static void
fs/exec.c +6 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/fs/exec.c linux-2.6.10-rc3-bk8-relayfs-ltt/fs/exec.c
@@ -47,6 +47,7 @@
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/rmap.h>
+#include <linux/ltt-events.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>

@@ -1105,6 +1106,11 @@ int do_execve(char * filename,
 	if (IS_ERR(file))
 		goto out_kfree;
 
+	ltt_ev_file_system(LTT_EV_FILE_SYSTEM_EXEC,
+			   0,
+			   file->f_dentry->d_name.len,
+			   file->f_dentry->d_name.name);
+
 	sched_exec();
 
 	bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
fs/ioctl.c +6 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/fs/ioctl.c linux-2.6.10-rc3-bk8-relayfs-ltt/fs/ioctl.c
@@ -11,6 +11,7 @@
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/security.h>
+#include <linux/ltt-events.h>
 #include <linux/module.h>
 
 #include <asm/uaccess.h>

@@ -68,6 +69,11 @@ asmlinkage long sys_ioctl(unsigned int f
                 goto out;
         }
 
+	ltt_ev_file_system(LTT_EV_FILE_SYSTEM_IOCTL,
+			   fd,
+			   cmd,
+			   NULL);
+
 	lock_kernel();
 	switch (cmd) {
 		case FIOCLEX:
fs/open.c +10 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/fs/open.c linux-2.6.10-rc3-bk8-relayfs-ltt/fs/open.c
@@ -19,6 +19,8 @@
 #include <linux/security.h>
 #include <linux/mount.h>
 #include <linux/vfs.h>
+#include <linux/ltt-events.h>
+
 #include <asm/uaccess.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>

@@ -956,6 +958,10 @@ asmlinkage long sys_open(const char __us
 			error = PTR_ERR(f);
 			if (IS_ERR(f))
 				goto out_error;
+			ltt_ev_file_system(LTT_EV_FILE_SYSTEM_OPEN,
+					   fd,
+					   f->f_dentry->d_name.len,
+					   f->f_dentry->d_name.name);
 			fd_install(fd, f);
 		}
 out:

@@ -1031,6 +1037,10 @@ asmlinkage long sys_close(unsigned int f
 	filp = files->fd[fd];
 	if (!filp)
 		goto out_unlock;
+	ltt_ev_file_system(LTT_EV_FILE_SYSTEM_CLOSE,
+			   fd,
+			   0,
+			   NULL);
 	files->fd[fd] = NULL;
 	FD_CLR(fd, files->close_on_exec);
 	__put_unused_fd(files, fd);
fs/read_write.c +41 -2

99 lines not on this page · raw message

fs/select.c +9 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/fs/select.c linux-2.6.10-rc3-bk8-relayfs-ltt/fs/select.c
@@ -22,6 +22,7 @@
 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
 #include <linux/file.h>
 #include <linux/fs.h>
+#include <linux/ltt-events.h>
 
 #include <asm/uaccess.h>
 

@@ -223,6 +224,10 @@ int do_select(int n, fd_set_bits *fds, l
 				file = fget(i);
 				if (file) {
 					f_op = file->f_op;
+					ltt_ev_file_system(LTT_EV_FILE_SYSTEM_SELECT,
+							   i /*  The fd*/,
+							   __timeout,
+							   NULL);
 					mask = DEFAULT_POLLMASK;
 					if (f_op && f_op->poll)
 						mask = (*f_op->poll)(file, retval ? NULL : wait);

@@ -408,6 +413,10 @@ static void do_pollfd(unsigned int num,
 			struct file * file = fget(fd);
 			mask = POLLNVAL;
 			if (file != NULL) {
+			        ltt_ev_file_system(LTT_EV_FILE_SYSTEM_POLL,
+						   fd,
+						   0,
+						   NULL);
 				mask = DEFAULT_POLLMASK;
 				if (file->f_op && file->f_op->poll)
 					mask = file->f_op->poll(file, *pwait);
ipc/msg.c +2 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/ipc/msg.c linux-2.6.10-rc3-bk8-relayfs-ltt/ipc/msg.c
@@ -25,6 +25,7 @@
 #include <linux/security.h>
 #include <linux/sched.h>
 #include <linux/syscalls.h>
+#include <linux/ltt-events.h>
 #include <asm/current.h>
 #include <asm/uaccess.h>
 #include "util.h"

@@ -229,6 +230,7 @@ asmlinkage long sys_msgget (key_t key, i
 		msg_unlock(msq);
 	}
 	up(&msg_ids.sem);
+	ltt_ev_ipc(LTT_EV_IPC_MSG_CREATE, ret, msgflg);
 	return ret;
 }
ipc/sem.c +2 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/ipc/sem.c linux-2.6.10-rc3-bk8-relayfs-ltt/ipc/sem.c
@@ -72,6 +72,7 @@
 #include <linux/smp_lock.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/ltt-events.h>
 #include <asm/uaccess.h>
 #include "util.h"
 

@@ -239,6 +240,7 @@ asmlinkage long sys_semget (key_t key, i
 	}
 
 	up(&sem_ids.sem);
+	ltt_ev_ipc(LTT_EV_IPC_SEM_CREATE, err, semflg);
 	return err;
 }
ipc/shm.c +2 -1
diff -urpN linux-2.6.10-rc3-bk8-relayfs/ipc/shm.c linux-2.6.10-rc3-bk8-relayfs-ltt/ipc/shm.c
@@ -27,6 +27,7 @@
 #include <linux/shmem_fs.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/ltt-events.h>
 #include <asm/uaccess.h>
 
 #include "util.h"

@@ -277,7 +278,7 @@ asmlinkage long sys_shmget (key_t key, s
 		shm_unlock(shp);
 	}
 	up(&shm_ids.sem);
-
+	ltt_ev_ipc(LTT_EV_IPC_SHM_CREATE, err, shmflg);
 	return err;
 }
kernel/exit.c +5 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/exit.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/exit.c
@@ -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>
 

@@ -812,6 +813,8 @@ 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);

@@ -1317,6 +1320,8 @@ 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:
 	flag = 0;
kernel/fork.c +3 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/fork.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/fork.c
@@ -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))
kernel/irq/handle.c +5 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/irq/handle.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/irq/handle.c
@@ -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;
 }
kernel/itimer.c +4 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/itimer.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/itimer.c
@@ -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);
kernel/sched.c +4 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/sched.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/sched.c
@@ -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();
kernel/signal.c +3 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/signal.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/signal.c
@@ -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. */
kernel/softirq.c +8 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/softirq.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/softirq.c
@@ -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;
kernel/time.c +1 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/time.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/time.c
@@ -33,6 +33,7 @@
 #include <linux/smp_lock.h>
 #include <linux/syscalls.h>
 #include <linux/security.h>
+#include <linux/ltt-events.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
kernel/timer.c +4 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/kernel/timer.c linux-2.6.10-rc3-bk8-relayfs-ltt/kernel/timer.c
@@ -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);
 }
mm/filemap.c +5 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/mm/filemap.c linux-2.6.10-rc3-bk8-relayfs-ltt/mm/filemap.c
@@ -28,6 +28,7 @@
 #include <linux/blkdev.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/ltt-events.h>
 /*
  * This is needed for the following functions:
  *  - try_to_release_page

@@ -402,9 +403,13 @@ void fastcall wait_on_page_bit(struct pa
 {
 	DEFINE_WAIT_BIT(wait, &page->flags, bit_nr);
 
+	ltt_ev_memory(LTT_EV_MEMORY_PAGE_WAIT_START, 0);
+
 	if (test_bit(bit_nr, &page->flags))
 		__wait_on_bit(page_waitqueue(page), &wait, sync_page,
 							TASK_UNINTERRUPTIBLE);
+
+	ltt_ev_memory(LTT_EV_MEMORY_PAGE_WAIT_END, 0);
 }
 EXPORT_SYMBOL(wait_on_page_bit);
mm/memory.c +4 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/mm/memory.c linux-2.6.10-rc3-bk8-relayfs-ltt/mm/memory.c
@@ -47,6 +47,9 @@
 #include <linux/module.h>
 #include <linux/init.h>
 
+#include <linux/module.h>
+#include <linux/ltt-events.h>
+
 #include <asm/pgalloc.h>
 #include <asm/uaccess.h>
 #include <asm/tlb.h>

@@ -1346,6 +1349,7 @@ static int do_swap_page(struct mm_struct
 	spin_unlock(&mm->page_table_lock);
 	page = lookup_swap_cache(entry);
 	if (!page) {
+	        ltt_ev_memory(LTT_EV_MEMORY_SWAP_IN, address);
  		swapin_readahead(entry, address, vma);
  		page = read_swap_cache_async(entry, vma, address);
 		if (!page) {
mm/page_alloc.c +4 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/mm/page_alloc.c linux-2.6.10-rc3-bk8-relayfs-ltt/mm/page_alloc.c
@@ -32,6 +32,7 @@
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
 #include <linux/nodemask.h>
+#include <linux/ltt-events.h>
 
 #include <asm/tlbflush.h>
 

@@ -278,6 +279,8 @@ void __free_pages_ok(struct page *page,
 	LIST_HEAD(list);
 	int i;
 
+	ltt_ev_memory(LTT_EV_MEMORY_PAGE_FREE, order);
+
 	arch_free_page(page, order);
 
 	mod_page_state(pgfree, 1 << order);

@@ -752,6 +755,7 @@ fastcall unsigned long __get_free_pages(
 	page = alloc_pages(gfp_mask, order);
 	if (!page)
 		return 0;
+	ltt_ev_memory(LTT_EV_MEMORY_PAGE_ALLOC, order);
 	return (unsigned long) page_address(page);
 }
mm/page_io.c +2 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/mm/page_io.c linux-2.6.10-rc3-bk8-relayfs-ltt/mm/page_io.c
@@ -17,6 +17,7 @@
 #include <linux/bio.h>
 #include <linux/swapops.h>
 #include <linux/writeback.h>
+#include <linux/ltt-events.h>
 #include <asm/pgtable.h>
 
 static struct bio *get_swap_bio(int gfp_flags, pgoff_t index,

@@ -103,6 +104,7 @@ int swap_writepage(struct page *page, st
 	inc_page_state(pswpout);
 	set_page_writeback(page);
 	unlock_page(page);
+	ltt_ev_memory(LTT_EV_MEMORY_SWAP_OUT, (unsigned long) page);
 	submit_bio(rw, bio);
 out:
 	return ret;
net/core/dev.c +5 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/net/core/dev.c linux-2.6.10-rc3-bk8-relayfs-ltt/net/core/dev.c
@@ -107,6 +107,7 @@
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/netpoll.h>
+#include <linux/ltt-events.h>
 #include <linux/rcupdate.h>
 #ifdef CONFIG_NET_RADIO
 #include <linux/wireless.h>		/* Note : will define WIRELESS_EXT */

@@ -1252,6 +1253,8 @@ int dev_queue_xmit(struct sk_buff *skb)
 	      	if (skb_checksum_help(skb, 0))
 	      		goto out_kfree_skb;
 
+	ltt_ev_network(LTT_EV_NETWORK_PACKET_OUT, skb->protocol);
+
 	/* Disable soft irqs for various locks below. Also
 	 * stops preemption for RCU.
 	 */

@@ -1649,6 +1652,8 @@ int netif_receive_skb(struct sk_buff *sk
 
 	__get_cpu_var(netdev_rx_stat).total++;
 
+ 	ltt_ev_network(LTT_EV_NETWORK_PACKET_IN, skb->protocol);
+
 	skb->h.raw = skb->nh.raw = skb->data;
 	skb->mac_len = skb->nh.raw - skb->mac.raw;
net/socket.c +9 -0
diff -urpN linux-2.6.10-rc3-bk8-relayfs/net/socket.c linux-2.6.10-rc3-bk8-relayfs-ltt/net/socket.c
@@ -81,6 +81,7 @@
 #include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/kmod.h>
+#include <linux/ltt-events.h>
 
 #ifdef CONFIG_NET_RADIO
 #include <linux/wireless.h>		/* Note : will define WIRELESS_EXT */

@@ -551,6 +552,8 @@ int sock_sendmsg(struct socket *sock, st
 	struct sock_iocb siocb;
 	int ret;
 
+	ltt_ev_socket(LTT_EV_SOCKET_SEND, sock->type, size);
+
 	init_sync_kiocb(&iocb, NULL);
 	iocb.private = &siocb;
 	ret = __sock_sendmsg(&iocb, sock, msg, size);

@@ -603,6 +606,8 @@ int sock_recvmsg(struct socket *sock, st
 	struct sock_iocb siocb;
 	int ret;
 
+	ltt_ev_socket(LTT_EV_SOCKET_RECEIVE, sock->type, size);
+
         init_sync_kiocb(&iocb, NULL);
 	iocb.private = &siocb;
 	ret = __sock_recvmsg(&iocb, sock, msg, size, flags);

@@ -1197,6 +1202,8 @@ asmlinkage long sys_socket(int family, i
 	if (retval < 0)
 		goto out_release;
 
+	ltt_ev_socket(LTT_EV_SOCKET_CREATE, retval, type);
+
 out:
 	/* It may be already another descriptor 8) Not kernel problem. */
 	return retval;

@@ -1916,6 +1923,8 @@ asmlinkage long sys_socketcall(int call,
 		
 	a0=a[0];
 	a1=a[1];
+
+	ltt_ev_socket(LTT_EV_SOCKET_CALL, call, a0);
 	
 	switch(call)
 	{