---

yaml
---
r: 10133
b: refs/heads/master
c: 2ad4106
h: refs/heads/master
i:
  10131: 1622d07
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 927321440976d0781a252eefe686ae6b0f236ae2
+refs/heads/master: 2ad41065d9fe518759b695fc2640cf9c07261dd2

trunk/drivers/cpufreq/cpufreq_conservative.c

@@ -315,9 +315,9 @@ static void dbs_check_cpu(int cpu)
 	policy = this_dbs_info->cur_policy;
 
 	if ( init_flag == 0 ) {
-		for_each_online_cpu(j) {
-			dbs_info = &per_cpu(cpu_dbs_info, j);
-			requested_freq[j] = dbs_info->cur_policy->cur;
+		for ( /* NULL */; init_flag < NR_CPUS; init_flag++ ) {
+			dbs_info = &per_cpu(cpu_dbs_info, init_flag);
+			requested_freq[cpu] = dbs_info->cur_policy->cur;
 		}
 		init_flag = 1;
 	}

trunk/include/asm-x86_64/pci.h

@@ -50,10 +50,10 @@ extern int iommu_setup(char *opt);
  * address space.  The networking and block device layers use
  * this boolean for bounce buffer decisions
  *
- * On AMD64 it mostly equals, but we set it to zero to tell some subsystems
- * that an IOMMU is available.
+ * On x86-64 it mostly equals, but we set it to zero to tell some subsystems
+ * that an hard or soft IOMMU is available.
  */
-#define PCI_DMA_BUS_IS_PHYS	(no_iommu ? 1 : 0)
+#define PCI_DMA_BUS_IS_PHYS 0
 
 /*
  * x86-64 always supports DAC, but sometimes it is useful to force

trunk/kernel/exit.c

@@ -825,14 +825,6 @@ fastcall NORET_TYPE void do_exit(long code)
 
 	tsk->flags |= PF_EXITING;
 
-	/*
-	 * Make sure we don't try to process any timer firings
-	 * while we are already exiting.
-	 */
- 	tsk->it_virt_expires = cputime_zero;
- 	tsk->it_prof_expires = cputime_zero;
-	tsk->it_sched_expires = 0;
-
 	if (unlikely(in_atomic()))
 		printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",
 				current->comm, current->pid,

trunk/kernel/posix-cpu-timers.c

@@ -497,7 +497,7 @@ static void process_timer_rebalance(struct task_struct *p,
 		left = cputime_div(cputime_sub(expires.cpu, val.cpu),
 				   nthreads);
 		do {
-			if (!unlikely(t->flags & PF_EXITING)) {
+			if (!unlikely(t->exit_state)) {
 				ticks = cputime_add(prof_ticks(t), left);
 				if (cputime_eq(t->it_prof_expires,
 					       cputime_zero) ||
@@ -512,7 +512,7 @@ static void process_timer_rebalance(struct task_struct *p,
 		left = cputime_div(cputime_sub(expires.cpu, val.cpu),
 				   nthreads);
 		do {
-			if (!unlikely(t->flags & PF_EXITING)) {
+			if (!unlikely(t->exit_state)) {
 				ticks = cputime_add(virt_ticks(t), left);
 				if (cputime_eq(t->it_virt_expires,
 					       cputime_zero) ||
@@ -527,7 +527,7 @@ static void process_timer_rebalance(struct task_struct *p,
 		nsleft = expires.sched - val.sched;
 		do_div(nsleft, nthreads);
 		do {
-			if (!unlikely(t->flags & PF_EXITING)) {
+			if (!unlikely(t->exit_state)) {
 				ns = t->sched_time + nsleft;
 				if (t->it_sched_expires == 0 ||
 				    t->it_sched_expires > ns) {
@@ -566,9 +566,6 @@ static void arm_timer(struct k_itimer *timer, union cpu_time_count now)
 	struct cpu_timer_list *next;
 	unsigned long i;
 
-	if (CPUCLOCK_PERTHREAD(timer->it_clock)	&& (p->flags & PF_EXITING))
-		return;
-
 	head = (CPUCLOCK_PERTHREAD(timer->it_clock) ?
 		p->cpu_timers : p->signal->cpu_timers);
 	head += CPUCLOCK_WHICH(timer->it_clock);
@@ -1207,7 +1204,7 @@ static void check_process_timers(struct task_struct *tsk,
 
 			do {
 				t = next_thread(t);
-			} while (unlikely(t->flags & PF_EXITING));
+			} while (unlikely(t->exit_state));
 		} while (t != tsk);
 	}
 }
@@ -1296,30 +1293,30 @@ void run_posix_cpu_timers(struct task_struct *tsk)
 
 #undef	UNEXPIRED
 
-	BUG_ON(tsk->exit_state);
-
 	/*
 	 * Double-check with locks held.
 	 */
 	read_lock(&tasklist_lock);
-	spin_lock(&tsk->sighand->siglock);
+	if (likely(tsk->signal != NULL)) {
+		spin_lock(&tsk->sighand->siglock);
 
-	/*
-	 * Here we take off tsk->cpu_timers[N] and tsk->signal->cpu_timers[N]
-	 * all the timers that are firing, and put them on the firing list.
-	 */
-	check_thread_timers(tsk, &firing);
-	check_process_timers(tsk, &firing);
+		/*
+		 * Here we take off tsk->cpu_timers[N] and tsk->signal->cpu_timers[N]
+		 * all the timers that are firing, and put them on the firing list.
+		 */
+		check_thread_timers(tsk, &firing);
+		check_process_timers(tsk, &firing);
 
-	/*
-	 * We must release these locks before taking any timer's lock.
-	 * There is a potential race with timer deletion here, as the
-	 * siglock now protects our private firing list.  We have set
-	 * the firing flag in each timer, so that a deletion attempt
-	 * that gets the timer lock before we do will give it up and
-	 * spin until we've taken care of that timer below.
-	 */
-	spin_unlock(&tsk->sighand->siglock);
+		/*
+		 * We must release these locks before taking any timer's lock.
+		 * There is a potential race with timer deletion here, as the
+		 * siglock now protects our private firing list.  We have set
+		 * the firing flag in each timer, so that a deletion attempt
+		 * that gets the timer lock before we do will give it up and
+		 * spin until we've taken care of that timer below.
+		 */
+		spin_unlock(&tsk->sighand->siglock);
+	}
 	read_unlock(&tasklist_lock);
 
 	/*

trunk/net/ipv4/tcp_input.c

@@ -2239,6 +2239,7 @@ static int tcp_ack_update_window(struct sock *sk, struct tcp_sock *tp,
 			/* Note, it is the only place, where
 			 * fast path is recovered for sending TCP.
 			 */
+			tp->pred_flags = 0;
 			tcp_fast_path_check(sk, tp);
 
 			if (nwin > tp->max_window) {