Merge branch 'linaro-android-3.10-lsk' of git://android.git.linaro.org/kernel/linaro-android into linux-linaro-lsk-v3.10-android

* 'linaro-android-3.10-lsk' of git://android.git.linaro.org/kernel/linaro-android:
  sched: cpufreq: update power usage only if cpufreq_stat is enabled
  uid_cputime: Extends the cputime functionality to report power per uid
  sched: cpufreq: Adds a field cpu_power in the task_struct
  cpufreq_stats: Adds the fucntionality to load current values for each frequency for all the cores.
  android: drivers: workaround debugfs race in binder
  neigh: Better handling of transition to NUD_PROBE state
  New Build Breakage in branch: kernel-m-dev-tegra-flounder-3.10 @ 1960706
  net/unix: sk_socket can disappear when state is unlocked
  selinux: enable genfscon labeling for sysfs and pstore files
  selinux: enable per-file labeling for debugfs files.
  ext4: don't save the error information if the block device is read-only
  suspend: Return error when pending wakeup source is found.
  proc: uid_cputime: fix show_uid_stat permission
  power: increment wakeup_count when save_wakeup_count failed.
  power: validate wakeup source before activating it.

drivers/android/binder.c

@@ -3598,13 +3598,24 @@ static int binder_transactions_show(struct seq_file *m, void *unused)
 
 static int binder_proc_show(struct seq_file *m, void *unused)
 {
+	struct binder_proc *itr;
 	struct binder_proc *proc = m->private;
 	int do_lock = !binder_debug_no_lock;
+	bool valid_proc = false;
 
 	if (do_lock)
 		binder_lock(__func__);
-	seq_puts(m, "binder proc state:\n");
-	print_binder_proc(m, proc, 1);
+
+	hlist_for_each_entry(itr, &binder_procs, proc_node) {
+		if (itr == proc) {
+			valid_proc = true;
+			break;
+		}
+	}
+	if (valid_proc) {
+		seq_puts(m, "binder proc state:\n");
+		print_binder_proc(m, proc, 1);
+	}
 	if (do_lock)
 		binder_unlock(__func__);
 	return 0;

drivers/base/power/wakeup.c

@@ -54,6 +54,8 @@ static LIST_HEAD(wakeup_sources);
 
 static DECLARE_WAIT_QUEUE_HEAD(wakeup_count_wait_queue);
 
+static ktime_t last_read_time;
+
 /**
  * wakeup_source_prepare - Prepare a new wakeup source for initialization.
  * @ws: Wakeup source to prepare.
@@ -343,6 +345,20 @@ int device_set_wakeup_enable(struct device *dev, bool enable)
 }
 EXPORT_SYMBOL_GPL(device_set_wakeup_enable);
 
+/**
+ * wakeup_source_not_registered - validate the given wakeup source.
+ * @ws: Wakeup source to be validated.
+ */
+static bool wakeup_source_not_registered(struct wakeup_source *ws)
+{
+	/*
+	 * Use timer struct to check if the given source is initialized
+	 * by wakeup_source_add.
+	 */
+	return ws->timer.function != pm_wakeup_timer_fn ||
+		   ws->timer.data != (unsigned long)ws;
+}
+
 /*
  * The functions below use the observation that each wakeup event starts a
  * period in which the system should not be suspended.  The moment this period
@@ -383,6 +399,10 @@ static void wakeup_source_activate(struct wakeup_source *ws)
 {
 	unsigned int cec;
 
+	if (WARN(wakeup_source_not_registered(ws),
+			"unregistered wakeup source\n"))
+		return;
+
 	/*
 	 * active wakeup source should bring the system
 	 * out of PM_SUSPEND_FREEZE state
@@ -760,10 +780,15 @@ bool pm_wakeup_pending(void)
 bool pm_get_wakeup_count(unsigned int *count, bool block)
 {
 	unsigned int cnt, inpr;
+	unsigned long flags;
 
 	if (block) {
 		DEFINE_WAIT(wait);
 
+		spin_lock_irqsave(&events_lock, flags);
+		last_read_time = ktime_get();
+		spin_unlock_irqrestore(&events_lock, flags);
+
 		for (;;) {
 			prepare_to_wait(&wakeup_count_wait_queue, &wait,
 					TASK_INTERRUPTIBLE);
@@ -795,6 +820,7 @@ bool pm_save_wakeup_count(unsigned int count)
 {
 	unsigned int cnt, inpr;
 	unsigned long flags;
+	struct wakeup_source *ws;
 
 	events_check_enabled = false;
 	spin_lock_irqsave(&events_lock, flags);
@@ -802,6 +828,15 @@ bool pm_save_wakeup_count(unsigned int count)
 	if (cnt == count && inpr == 0) {
 		saved_count = count;
 		events_check_enabled = true;
+	} else {
+		rcu_read_lock();
+		list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
+			if (ws->active ||
+			    ktime_compare(ws->last_time, last_read_time) > 0) {
+				ws->wakeup_count++;
+			}
+		}
+		rcu_read_unlock();
 	}
 	spin_unlock_irqrestore(&events_lock, flags);
 	return events_check_enabled;

drivers/cpufreq/cpufreq_stats.c

@@ -22,6 +22,8 @@
 #include <linux/notifier.h>
 #include <linux/sort.h>
 #include <linux/err.h>
+#include <linux/of.h>
+#include <linux/sched.h>
 #include <asm/cputime.h>
 #ifdef CONFIG_BL_SWITCHER
 #include <asm/bL_switcher.h>
@@ -49,6 +51,12 @@ struct all_cpufreq_stats {
 	unsigned int *freq_table;
 };
 
+struct cpufreq_power_stats {
+	unsigned int state_num;
+	unsigned int *curr;
+	unsigned int *freq_table;
+};
+
 struct all_freq_table {
 	unsigned int *freq_table;
 	unsigned int table_size;
@@ -58,6 +66,7 @@ static struct all_freq_table *all_freq_table;
 
 static DEFINE_PER_CPU(struct all_cpufreq_stats *, all_cpufreq_stats);
 static DEFINE_PER_CPU(struct cpufreq_stats *, cpufreq_stats_table);
+static DEFINE_PER_CPU(struct cpufreq_power_stats *, cpufreq_power_stats);
 
 struct cpufreq_stats_attribute {
 	struct attribute attr;
@@ -128,6 +137,47 @@ static int get_index_all_cpufreq_stat(struct all_cpufreq_stats *all_stat,
 	return -1;
 }
 
+void acct_update_power(struct task_struct *task, cputime_t cputime) {
+	struct cpufreq_power_stats *powerstats;
+	struct cpufreq_stats *stats;
+	unsigned int cpu_num, curr;
+
+	if (!task)
+		return;
+	cpu_num = task_cpu(task);
+	powerstats = per_cpu(cpufreq_power_stats, cpu_num);
+	stats = per_cpu(cpufreq_stats_table, cpu_num);
+	if (!powerstats || !stats)
+		return;
+
+	curr = powerstats->curr[stats->last_index];
+	task->cpu_power += curr * cputime_to_usecs(cputime);
+}
+EXPORT_SYMBOL_GPL(acct_update_power);
+
+static ssize_t show_current_in_state(struct kobject *kobj,
+		struct kobj_attribute *attr, char *buf)
+{
+	ssize_t len = 0;
+	unsigned int i, cpu;
+	struct cpufreq_power_stats *powerstats;
+
+	spin_lock(&cpufreq_stats_lock);
+	for_each_possible_cpu(cpu) {
+		powerstats = per_cpu(cpufreq_power_stats, cpu);
+		if (!powerstats)
+			continue;
+		len += scnprintf(buf + len, PAGE_SIZE - len, "CPU%d:", cpu);
+		for (i = 0; i < powerstats->state_num; i++)
+			len += scnprintf(buf + len, PAGE_SIZE - len,
+					"%d=%d ", powerstats->freq_table[i],
+					powerstats->curr[i]);
+		len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
+	}
+	spin_unlock(&cpufreq_stats_lock);
+	return len;
+}
+
 static ssize_t show_all_time_in_state(struct kobject *kobj,
 		struct kobj_attribute *attr, char *buf)
 {
@@ -237,6 +287,9 @@ static struct attribute_group stats_attr_group = {
 static struct kobj_attribute _attr_all_time_in_state = __ATTR(all_time_in_state,
 		0444, show_all_time_in_state, NULL);
 
+static struct kobj_attribute _attr_current_in_state = __ATTR(current_in_state,
+		0444, show_current_in_state, NULL);
+
 static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
 {
 	int index;
@@ -306,10 +359,27 @@ static void cpufreq_allstats_free(void)
 	}
 }
 
-static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
-		struct cpufreq_frequency_table *table)
+static void cpufreq_powerstats_free(void)
 {
-	unsigned int i, j, count = 0, ret = 0;
+	int cpu;
+	struct cpufreq_power_stats *powerstats;
+
+	sysfs_remove_file(cpufreq_global_kobject, &_attr_current_in_state.attr);
+
+	for_each_possible_cpu(cpu) {
+		powerstats = per_cpu(cpufreq_power_stats, cpu);
+		if (!powerstats)
+			continue;
+		kfree(powerstats->curr);
+		kfree(powerstats);
+		per_cpu(cpufreq_power_stats, cpu) = NULL;
+	}
+}
+
+static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
+		struct cpufreq_frequency_table *table, int count)
+{
+	unsigned int i, j, ret = 0;
 	struct cpufreq_stats *stat;
 	struct cpufreq_policy *data;
 	unsigned int alloc_size;
@@ -333,12 +403,6 @@ static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	stat->cpu = cpu;
 	per_cpu(cpufreq_stats_table, cpu) = stat;
 
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
-		count++;
-	}
 
 	alloc_size = count * sizeof(int) + count * sizeof(u64);
 
@@ -392,6 +456,54 @@ static void cpufreq_stats_update_policy_cpu(struct cpufreq_policy *policy)
 	stat->cpu = policy->cpu;
 }
 
+static void cpufreq_powerstats_create(unsigned int cpu,
+		struct cpufreq_frequency_table *table, int count) {
+	unsigned int alloc_size, i = 0, j = 0, ret = 0;
+	struct cpufreq_power_stats *powerstats;
+	struct device_node *cpu_node;
+	char device_path[16];
+
+	powerstats = kzalloc(sizeof(struct cpufreq_power_stats),
+			GFP_KERNEL);
+	if (!powerstats)
+		return;
+
+	/* Allocate memory for freq table per cpu as well as clockticks per
+	 * freq*/
+	alloc_size = count * sizeof(unsigned int) +
+		count * sizeof(unsigned int);
+	powerstats->curr = kzalloc(alloc_size, GFP_KERNEL);
+	if (!powerstats->curr) {
+		kfree(powerstats);
+		return;
+	}
+	powerstats->freq_table = powerstats->curr + count;
+
+	spin_lock(&cpufreq_stats_lock);
+	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END && j < count; i++) {
+		unsigned int freq = table[i].frequency;
+
+		if (freq == CPUFREQ_ENTRY_INVALID)
+			continue;
+		powerstats->freq_table[j++] = freq;
+	}
+	powerstats->state_num = j;
+
+	snprintf(device_path, sizeof(device_path), "/cpus/cpu@%d", cpu);
+	cpu_node = of_find_node_by_path(device_path);
+	if (cpu_node) {
+		ret = of_property_read_u32_array(cpu_node, "current",
+				powerstats->curr, count);
+		if (ret) {
+			kfree(powerstats->curr);
+			kfree(powerstats);
+			powerstats = NULL;
+		}
+	}
+	per_cpu(cpufreq_power_stats, cpu) = powerstats;
+	spin_unlock(&cpufreq_stats_lock);
+}
+
 static int compare_for_sort(const void *lhs_ptr, const void *rhs_ptr)
 {
 	unsigned int lhs = *(const unsigned int *)(lhs_ptr);
@@ -436,24 +548,14 @@ static void add_all_freq_table(unsigned int freq)
 	all_freq_table->freq_table[all_freq_table->table_size++] = freq;
 }
 
-static void cpufreq_allstats_create(unsigned int cpu)
+static void cpufreq_allstats_create(unsigned int cpu,
+		struct cpufreq_frequency_table *table, int count)
 {
 	int i , j = 0;
-	unsigned int alloc_size, count = 0;
-	struct cpufreq_frequency_table *table = cpufreq_frequency_get_table(cpu);
+	unsigned int alloc_size;
 	struct all_cpufreq_stats *all_stat;
 	bool sort_needed = false;
 
-	if (!table)
-		return;
-
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
-		count++;
-	}
-
 	all_stat = kzalloc(sizeof(struct all_cpufreq_stats),
 			GFP_KERNEL);
 	if (!all_stat) {
@@ -495,7 +597,7 @@ static void cpufreq_allstats_create(unsigned int cpu)
 static int cpufreq_stat_notifier_policy(struct notifier_block *nb,
 		unsigned long val, void *data)
 {
-	int ret;
+	int ret, count = 0, i;
 	struct cpufreq_policy *policy = data;
 	struct cpufreq_frequency_table *table;
 	unsigned int cpu = policy->cpu;
@@ -511,10 +613,21 @@ static int cpufreq_stat_notifier_policy(struct notifier_block *nb,
 	if (!table)
 		return 0;
 
-	if (!per_cpu(all_cpufreq_stats, cpu))
-		cpufreq_allstats_create(cpu);
+	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
+		unsigned int freq = table[i].frequency;
 
-	ret = cpufreq_stats_create_table(policy, table);
+		if (freq == CPUFREQ_ENTRY_INVALID)
+			continue;
+		count++;
+	}
+
+	if (!per_cpu(all_cpufreq_stats, cpu))
+		cpufreq_allstats_create(cpu, table, count);
+
+	if (!per_cpu(cpufreq_power_stats, cpu))
+		cpufreq_powerstats_create(cpu, table, count);
+
+	ret = cpufreq_stats_create_table(policy, table, count);
 	if (ret)
 		return ret;
 	return 0;
@@ -560,7 +673,7 @@ static int cpufreq_stats_create_table_cpu(unsigned int cpu)
 {
 	struct cpufreq_policy *policy;
 	struct cpufreq_frequency_table *table;
-	int ret = -ENODEV;
+	int ret = -ENODEV, i, count = 0;
 
 	policy = cpufreq_cpu_get(cpu);
 	if (!policy)
@@ -570,10 +683,21 @@ static int cpufreq_stats_create_table_cpu(unsigned int cpu)
 	if (!table)
 		goto out;
 
-	if (!per_cpu(all_cpufreq_stats, cpu))
-		cpufreq_allstats_create(cpu);
+	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
+		unsigned int freq = table[i].frequency;
 
-	ret = cpufreq_stats_create_table(policy, table);
+		if (freq == CPUFREQ_ENTRY_INVALID)
+			continue;
+		count++;
+	}
+
+	if (!per_cpu(all_cpufreq_stats, cpu))
+		cpufreq_allstats_create(cpu, table, count);
+
+	if (!per_cpu(cpufreq_power_stats, cpu))
+		cpufreq_powerstats_create(cpu, table, count);
+
+	ret = cpufreq_stats_create_table(policy, table, count);
 
 out:
 	cpufreq_cpu_put(policy);
@@ -651,7 +775,12 @@ static int cpufreq_stats_setup(void)
 	ret = sysfs_create_file(cpufreq_global_kobject,
 			&_attr_all_time_in_state.attr);
 	if (ret)
-		pr_warn("Error creating sysfs file for cpufreq stats\n");
+		pr_warn("Cannot create sysfs file for cpufreq stats\n");
+
+	ret = sysfs_create_file(cpufreq_global_kobject,
+			&_attr_current_in_state.attr);
+	if (ret)
+		pr_warn("Cannot create sysfs file for cpufreq current stats\n");
 
 	return 0;
 }
@@ -670,6 +799,7 @@ static void cpufreq_stats_cleanup(void)
 		cpufreq_stats_free_sysfs(cpu);
 	}
 	cpufreq_allstats_free();
+	cpufreq_powerstats_free();
 }
 
 #ifdef CONFIG_BL_SWITCHER

drivers/misc/uid_cputime.c

@@ -38,6 +38,8 @@ struct uid_entry {
 	cputime_t stime;
 	cputime_t active_utime;
 	cputime_t active_stime;
+	unsigned long long active_power;
+	unsigned long long power;
 	struct hlist_node hash;
 };
 
@@ -83,6 +85,7 @@ static int uid_stat_show(struct seq_file *m, void *v)
 	hash_for_each(hash_table, bkt, uid_entry, hash) {
 		uid_entry->active_stime = 0;
 		uid_entry->active_utime = 0;
+		uid_entry->active_power = 0;
 	}
 
 	read_lock(&tasklist_lock);
@@ -100,6 +103,7 @@ static int uid_stat_show(struct seq_file *m, void *v)
 		task_cputime_adjusted(task, &utime, &stime);
 		uid_entry->active_utime += utime;
 		uid_entry->active_stime += stime;
+		uid_entry->active_power += task->cpu_power;
 	}
 	read_unlock(&tasklist_lock);
 
@@ -108,9 +112,12 @@ static int uid_stat_show(struct seq_file *m, void *v)
 							uid_entry->active_utime;
 		cputime_t total_stime = uid_entry->stime +
 							uid_entry->active_stime;
-		seq_printf(m, "%d: %u %u\n", uid_entry->uid,
+		unsigned long long total_power = uid_entry->power +
+							uid_entry->active_power;
+		seq_printf(m, "%d: %u %u %llu\n", uid_entry->uid,
 						cputime_to_usecs(total_utime),
-						cputime_to_usecs(total_stime));
+						cputime_to_usecs(total_stime),
+						total_power);
 	}
 
 	mutex_unlock(&uid_lock);
@@ -203,6 +210,7 @@ static int process_notifier(struct notifier_block *self,
 	task_cputime_adjusted(task, &utime, &stime);
 	uid_entry->utime += utime;
 	uid_entry->stime += stime;
+	uid_entry->power += task->cpu_power;
 
 exit:
 	mutex_unlock(&uid_lock);
@@ -226,7 +234,7 @@ static int __init proc_uid_cputime_init(void)
 	proc_create_data("remove_uid_range", S_IWUGO, parent, &uid_remove_fops,
 					NULL);
 
-	proc_create_data("show_uid_stat", S_IWUGO, parent, &uid_stat_fops,
+	proc_create_data("show_uid_stat", S_IRUGO, parent, &uid_stat_fops,
 					NULL);
 
 	profile_event_register(PROFILE_TASK_EXIT, &process_notifier_block);

fs/ext4/super.c

@@ -305,6 +305,8 @@ static void __save_error_info(struct super_block *sb, const char *func,
 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
 
 	EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+	if (bdev_read_only(sb->s_bdev))
+		return;
 	es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
 	es->s_last_error_time = cpu_to_le32(get_seconds());
 	strncpy(es->s_last_error_func, func, sizeof(es->s_last_error_func));

include/linux/cpufreq.h

@@ -21,6 +21,7 @@
 #include <linux/workqueue.h>
 #include <linux/cpumask.h>
 #include <asm/div64.h>
+#include <asm/cputime.h>
 
 #define CPUFREQ_NAME_LEN 16
 /* Print length for names. Extra 1 space for accomodating '\n' in prints */
@@ -438,4 +439,11 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
 void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy);
 
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
+
+/*********************************************************************
+ *                         CPUFREQ STATS                             *
+ *********************************************************************/
+
+void acct_update_power(struct task_struct *p, cputime_t cputime);
+
 #endif /* _LINUX_CPUFREQ_H */

include/linux/sched.h

@@ -1189,6 +1189,7 @@ struct task_struct {
 
 	cputime_t utime, stime, utimescaled, stimescaled;
 	cputime_t gtime;
+	unsigned long long cpu_power;
 #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
 	struct cputime prev_cputime;
 #endif

kernel/fork.c

@@ -1299,6 +1299,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 
 	p->utime = p->stime = p->gtime = 0;
 	p->utimescaled = p->stimescaled = 0;
+	p->cpu_power = 0;
 #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
 	p->prev_cputime.utime = p->prev_cputime.stime = 0;
 #endif

kernel/power/suspend.c

@@ -224,10 +224,11 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
 		if (!(suspend_test(TEST_CORE) || *wakeup)) {
 			error = suspend_ops->enter(state);
 			events_check_enabled = false;
-		} else {
+		} else if (*wakeup) {
 			pm_get_active_wakeup_sources(suspend_abort,
 				MAX_SUSPEND_ABORT_LEN);
 			log_suspend_abort_reason(suspend_abort);
+			error = -EBUSY;
 		}
 		syscore_resume();
 	}

kernel/sched/cputime.c

@@ -1,3 +1,4 @@
+#include <linux/cpufreq.h>
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/tsacct_kern.h>
@@ -149,6 +150,11 @@ void account_user_time(struct task_struct *p, cputime_t cputime,
 
 	/* Account for user time used */
 	acct_account_cputime(p);
+
+#ifdef CONFIG_CPU_FREQ_STAT
+	/* Account power usage for user time */
+	acct_update_power(p, cputime);
+#endif
 }
 
 /*
@@ -199,6 +205,11 @@ void __account_system_time(struct task_struct *p, cputime_t cputime,
 
 	/* Account for system time used */
 	acct_account_cputime(p);
+
+#ifdef CONFIG_CPU_FREQ_STAT
+	/* Account power usage for system time */
+	acct_update_power(p, cputime);
+#endif
 }
 
 /*

net/caif/caif_socket.c

@@ -332,6 +332,10 @@ static long caif_stream_data_wait(struct sock *sk, long timeo)
 		release_sock(sk);
 		timeo = schedule_timeout(timeo);
 		lock_sock(sk);
+
+		if (sock_flag(sk, SOCK_DEAD))
+			break;
+
 		clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
 	}
 
@@ -376,6 +380,10 @@ static int caif_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 		struct sk_buff *skb;
 
 		lock_sock(sk);
+		if (sock_flag(sk, SOCK_DEAD)) {
+			err = -ECONNRESET;
+			goto unlock;
+		}
 		skb = skb_dequeue(&sk->sk_receive_queue);
 		caif_check_flow_release(sk);
 

net/core/neighbour.c

@@ -928,6 +928,7 @@ static void neigh_timer_handler(unsigned long arg)
 			neigh->nud_state = NUD_PROBE;
 			neigh->updated = jiffies;
 			atomic_set(&neigh->probes, 0);
+			notify = 1;
 			next = now + neigh->parms->retrans_time;
 		}
 	} else {
@@ -1155,6 +1156,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
 
 	if (new != old) {
 		neigh_del_timer(neigh);
+		if (new & NUD_PROBE)
+			atomic_set(&neigh->probes, 0);
 		if (new & NUD_IN_TIMER)
 			neigh_add_timer(neigh, (jiffies +
 						((new & NUD_REACHABLE) ?

net/unix/af_unix.c

@@ -1899,6 +1899,10 @@ static long unix_stream_data_wait(struct sock *sk, long timeo,
 		unix_state_unlock(sk);
 		timeo = freezable_schedule_timeout(timeo);
 		unix_state_lock(sk);
+
+		if (sock_flag(sk, SOCK_DEAD))
+			break;
+
 		clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
 	}
 
@@ -1958,6 +1962,10 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 		struct sk_buff *skb, *last;
 
 		unix_state_lock(sk);
+		if (sock_flag(sk, SOCK_DEAD)) {
+			err = -ECONNRESET;
+			goto unlock;
+		}
 		last = skb = skb_peek(&sk->sk_receive_queue);
 again:
 		if (skb == NULL) {

security/selinux/hooks.c

@@ -699,7 +699,12 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 	}
 
 	if (strcmp(sb->s_type->name, "proc") == 0)
-		sbsec->flags |= SE_SBPROC;
+		sbsec->flags |= SE_SBPROC | SE_SBGENFS;
+
+	if (!strcmp(sb->s_type->name, "debugfs") ||
+	    !strcmp(sb->s_type->name, "sysfs") ||
+	    !strcmp(sb->s_type->name, "pstore"))
+		sbsec->flags |= SE_SBGENFS;
 
 	/* Determine the labeling behavior to use for this filesystem type. */
 	rc = security_fs_use((sbsec->flags & SE_SBPROC) ? "proc" : sb->s_type->name, &sbsec->behavior, &sbsec->sid);
@@ -1184,12 +1189,13 @@ static inline u16 socket_type_to_security_class(int family, int type, int protoc
 	return SECCLASS_SOCKET;
 }
 
-#ifdef CONFIG_PROC_FS
-static int selinux_proc_get_sid(struct dentry *dentry,
-				u16 tclass,
-				u32 *sid)
+static int selinux_genfs_get_sid(struct dentry *dentry,
+				 u16 tclass,
+				 u16 flags,
+				 u32 *sid)
 {
 	int rc;
+	struct super_block *sb = dentry->d_inode->i_sb;
 	char *buffer, *path;
 
 	buffer = (char *)__get_free_page(GFP_KERNEL);
@@ -1200,26 +1206,20 @@ static int selinux_proc_get_sid(struct dentry *dentry,
 	if (IS_ERR(path))
 		rc = PTR_ERR(path);
 	else {
-		/* each process gets a /proc/PID/ entry. Strip off the
-		 * PID part to get a valid selinux labeling.
-		 * e.g. /proc/1/net/rpc/nfs -> /net/rpc/nfs */
-		while (path[1] >= '0' && path[1] <= '9') {
-			path[1] = '/';
-			path++;
+		if (flags & SE_SBPROC) {
+			/* each process gets a /proc/PID/ entry. Strip off the
+			 * PID part to get a valid selinux labeling.
+			 * e.g. /proc/1/net/rpc/nfs -> /net/rpc/nfs */
+			while (path[1] >= '0' && path[1] <= '9') {
+				path[1] = '/';
+				path++;
+			}
 		}
-		rc = security_genfs_sid("proc", path, tclass, sid);
+		rc = security_genfs_sid(sb->s_type->name, path, tclass, sid);
 	}
 	free_page((unsigned long)buffer);
 	return rc;
 }
-#else
-static int selinux_proc_get_sid(struct dentry *dentry,
-				u16 tclass,
-				u32 *sid)
-{
-	return -EINVAL;
-}
-#endif
 
 /* The inode's security attributes must be initialized before first use. */
 static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dentry)
@@ -1374,7 +1374,7 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
 		/* Default to the fs superblock SID. */
 		isec->sid = sbsec->sid;
 
-		if ((sbsec->flags & SE_SBPROC) && !S_ISLNK(inode->i_mode)) {
+		if ((sbsec->flags & SE_SBGENFS) && !S_ISLNK(inode->i_mode)) {
 			/* We must have a dentry to determine the label on
 			 * procfs inodes */
 			if (opt_dentry)
@@ -1397,7 +1397,8 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
 			if (!dentry)
 				goto out_unlock;
 			isec->sclass = inode_mode_to_security_class(inode->i_mode);
-			rc = selinux_proc_get_sid(dentry, isec->sclass, &sid);
+			rc = selinux_genfs_get_sid(dentry, isec->sclass,
+						   sbsec->flags, &sid);
 			dput(dentry);
 			if (rc)
 				goto out_unlock;

security/selinux/include/security.h

@@ -55,6 +55,7 @@
 #define SE_SBINITIALIZED	0x10
 #define SE_SBPROC		0x20
 #define SE_SBLABELSUPP	0x40
+#define SE_SBGENFS	0x80
 
 #define CONTEXT_STR	"context="
 #define FSCONTEXT_STR	"fscontext="