Merge branch 'master'; commit 'v2.6.38-rc7' into next

18 files changed, 101 insertions, 123 deletions

diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 6a0068841d96..15af6222f8a4 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -1,5 +1,5 @@
 config PROC_FS
-	bool "/proc file system support" if EMBEDDED
+	bool "/proc file system support" if EXPERT
 	default y
 	help
 	  This is a virtual file system providing information about the status
@@ -40,7 +40,7 @@ config PROC_VMCORE
         Exports the dump image of crashed kernel in ELF format.
 
 config PROC_SYSCTL
-	bool "Sysctl support (/proc/sys)" if EMBEDDED
+	bool "Sysctl support (/proc/sys)" if EXPERT
 	depends on PROC_FS
 	select SYSCTL
 	default y
@@ -61,7 +61,7 @@ config PROC_SYSCTL
 config PROC_PAGE_MONITOR
  	default y
 	depends on PROC_FS && MMU
-	bool "Enable /proc page monitoring" if EMBEDDED
+	bool "Enable /proc page monitoring" if EXPERT
  	help
 	  Various /proc files exist to monitor process memory utilization:
 	  /proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index 288a49e098bf..df434c5f28fb 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -10,12 +10,12 @@ proc-$(CONFIG_MMU)	:= mmu.o task_mmu.o
 proc-y       += inode.o root.o base.o generic.o array.o \
 		proc_tty.o
 proc-y	+= cmdline.o
+proc-y	+= consoles.o
 proc-y	+= cpuinfo.o
 proc-y	+= devices.o
 proc-y	+= interrupts.o
 proc-y	+= loadavg.o
 proc-y	+= meminfo.o
-proc-y	+= proc_console.o
 proc-y	+= stat.o
 proc-y	+= uptime.o
 proc-y	+= version.o
diff --git a/fs/proc/array.c b/fs/proc/array.c
index fff6572676ae..7c99c1cf7e5c 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -95,7 +95,7 @@ static inline void task_name(struct seq_file *m, struct task_struct *p)
 
 	get_task_comm(tcomm, p);
 
-	seq_printf(m, "Name:\t");
+	seq_puts(m, "Name:\t");
 	end = m->buf + m->size;
 	buf = m->buf + m->count;
 	name = tcomm;
@@ -122,7 +122,7 @@ static inline void task_name(struct seq_file *m, struct task_struct *p)
 		buf++;
 	}
 	m->count = buf - m->buf;
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 }
 
 /*
@@ -208,7 +208,7 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
 		seq_printf(m, "%d ", GROUP_AT(group_info, g));
 	put_cred(cred);
 
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 }
 
 static void render_sigset_t(struct seq_file *m, const char *header,
@@ -216,7 +216,7 @@ static void render_sigset_t(struct seq_file *m, const char *header,
 {
 	int i;
 
-	seq_printf(m, "%s", header);
+	seq_puts(m, header);
 
 	i = _NSIG;
 	do {
@@ -230,7 +230,7 @@ static void render_sigset_t(struct seq_file *m, const char *header,
 		seq_printf(m, "%x", x);
 	} while (i >= 4);
 
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 }
 
 static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign,
@@ -291,12 +291,12 @@ static void render_cap_t(struct seq_file *m, const char *header,
 {
 	unsigned __capi;
 
-	seq_printf(m, "%s", header);
+	seq_puts(m, header);
 	CAP_FOR_EACH_U32(__capi) {
 		seq_printf(m, "%08x",
 			   a->cap[(_KERNEL_CAPABILITY_U32S-1) - __capi]);
 	}
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 }
 
 static inline void task_cap(struct seq_file *m, struct task_struct *p)
@@ -329,12 +329,12 @@ static inline void task_context_switch_counts(struct seq_file *m,
 
 static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
 {
-	seq_printf(m, "Cpus_allowed:\t");
+	seq_puts(m, "Cpus_allowed:\t");
 	seq_cpumask(m, &task->cpus_allowed);
-	seq_printf(m, "\n");
-	seq_printf(m, "Cpus_allowed_list:\t");
+	seq_putc(m, '\n');
+	seq_puts(m, "Cpus_allowed_list:\t");
 	seq_cpumask_list(m, &task->cpus_allowed);
-	seq_printf(m, "\n");
+	seq_putc(m, '\n');
 }
 
 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
@@ -353,9 +353,6 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 	task_cap(m, task);
 	task_cpus_allowed(m, task);
 	cpuset_task_status_allowed(m, task);
-#if defined(CONFIG_S390)
-	task_show_regs(m, task);
-#endif
 	task_context_switch_counts(m, task);
 	return 0;
 }
@@ -535,15 +532,15 @@ int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns,
 int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task)
 {
-	int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0;
+	unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
 	struct mm_struct *mm = get_task_mm(task);
 
 	if (mm) {
 		size = task_statm(mm, &shared, &text, &data, &resident);
 		mmput(mm);
 	}
-	seq_printf(m, "%d %d %d %d %d %d %d\n",
-			size, resident, shared, text, lib, data, 0);
+	seq_printf(m, "%lu %lu %lu %lu 0 %lu 0\n",
+			size, resident, shared, text, data);
 
 	return 0;
 }
diff --git a/fs/proc/base.c b/fs/proc/base.c
index b20962c71a52..9d096e82b201 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -373,26 +373,20 @@ static int lstats_show_proc(struct seq_file *m, void *v)
 		return -ESRCH;
 	seq_puts(m, "Latency Top version : v0.1\n");
 	for (i = 0; i < 32; i++) {
-		if (task->latency_record[i].backtrace[0]) {
+		struct latency_record *lr = &task->latency_record[i];
+		if (lr->backtrace[0]) {
 			int q;
-			seq_printf(m, "%i %li %li ",
-				task->latency_record[i].count,
-				task->latency_record[i].time,
-				task->latency_record[i].max);
+			seq_printf(m, "%i %li %li",
+				   lr->count, lr->time, lr->max);
 			for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
-				char sym[KSYM_SYMBOL_LEN];
-				char *c;
-				if (!task->latency_record[i].backtrace[q])
+				unsigned long bt = lr->backtrace[q];
+				if (!bt)
 					break;
-				if (task->latency_record[i].backtrace[q] == ULONG_MAX)
+				if (bt == ULONG_MAX)
 					break;
-				sprint_symbol(sym, task->latency_record[i].backtrace[q]);
-				c = strchr(sym, '+');
-				if (c)
-					*c = 0;
-				seq_printf(m, "%s ", sym);
+				seq_printf(m, " %ps", (void *)bt);
 			}
-			seq_printf(m, "\n");
+			seq_putc(m, '\n');
 		}
 
 	}
@@ -751,14 +745,7 @@ static int proc_single_show(struct seq_file *m, void *v)
 
 static int proc_single_open(struct inode *inode, struct file *filp)
 {
-	int ret;
-	ret = single_open(filp, proc_single_show, NULL);
-	if (!ret) {
-		struct seq_file *m = filp->private_data;
-
-		m->private = inode;
-	}
-	return ret;
+	return single_open(filp, proc_single_show, inode);
 }
 
 static const struct file_operations proc_single_file_operations = {
@@ -1164,7 +1151,7 @@ static ssize_t oom_score_adj_write(struct file *file, const char __user *buf,
 		goto err_task_lock;
 	}
 
-	if (oom_score_adj < task->signal->oom_score_adj &&
+	if (oom_score_adj < task->signal->oom_score_adj_min &&
 			!capable(CAP_SYS_RESOURCE)) {
 		err = -EACCES;
 		goto err_sighand;
@@ -1177,6 +1164,8 @@ static ssize_t oom_score_adj_write(struct file *file, const char __user *buf,
 			atomic_dec(&task->mm->oom_disable_count);
 	}
 	task->signal->oom_score_adj = oom_score_adj;
+	if (has_capability_noaudit(current, CAP_SYS_RESOURCE))
+		task->signal->oom_score_adj_min = oom_score_adj;
 	/*
 	 * Scale /proc/pid/oom_adj appropriately ensuring that OOM_DISABLE is
 	 * always attainable.
@@ -1386,15 +1375,7 @@ sched_write(struct file *file, const char __user *buf,
 
 static int sched_open(struct inode *inode, struct file *filp)
 {
-	int ret;
-
-	ret = single_open(filp, sched_show, NULL);
-	if (!ret) {
-		struct seq_file *m = filp->private_data;
-
-		m->private = inode;
-	}
-	return ret;
+	return single_open(filp, sched_show, inode);
 }
 
 static const struct file_operations proc_pid_sched_operations = {
@@ -1530,15 +1511,7 @@ static int comm_show(struct seq_file *m, void *v)
 
 static int comm_open(struct inode *inode, struct file *filp)
 {
-	int ret;
-
-	ret = single_open(filp, comm_show, NULL);
-	if (!ret) {
-		struct seq_file *m = filp->private_data;
-
-		m->private = inode;
-	}
-	return ret;
+	return single_open(filp, comm_show, inode);
 }
 
 static const struct file_operations proc_pid_set_comm_operations = {
diff --git a/fs/proc/proc_console.c b/fs/proc/consoles.c
index 8a707609f528..b701eaa482bf 100644
--- a/fs/proc/proc_console.c
+++ b/fs/proc/consoles.c
@@ -67,7 +67,7 @@ static void *c_start(struct seq_file *m, loff_t *pos)
 	struct console *con;
 	loff_t off = 0;
 
-	acquire_console_sem();
+	console_lock();
 	for_each_console(con)
 		if (off++ == *pos)
 			break;
@@ -84,7 +84,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 
 static void c_stop(struct seq_file *m, void *v)
 {
-	release_console_sem();
+	console_unlock();
 }
 
 static const struct seq_operations consoles_op = {
@@ -106,9 +106,9 @@ static const struct file_operations proc_consoles_operations = {
 	.release	= seq_release,
 };
 
-static int register_proc_consoles(void)
+static int __init proc_consoles_init(void)
 {
 	proc_create("consoles", 0, NULL, &proc_consoles_operations);
 	return 0;
 }
-module_init(register_proc_consoles);
+module_init(proc_consoles_init);
diff --git a/fs/proc/devices.c b/fs/proc/devices.c
index 59ee7da959c9..b14347167c35 100644
--- a/fs/proc/devices.c
+++ b/fs/proc/devices.c
@@ -9,14 +9,14 @@ static int devinfo_show(struct seq_file *f, void *v)
 
 	if (i < CHRDEV_MAJOR_HASH_SIZE) {
 		if (i == 0)
-			seq_printf(f, "Character devices:\n");
+			seq_puts(f, "Character devices:\n");
 		chrdev_show(f, i);
 	}
 #ifdef CONFIG_BLOCK
 	else {
 		i -= CHRDEV_MAJOR_HASH_SIZE;
 		if (i == 0)
-			seq_printf(f, "\nBlock devices:\n");
+			seq_puts(f, "\nBlock devices:\n");
 		blkdev_show(f, i);
 	}
 #endif
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index f766be29d2c7..01e07f2a188f 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -425,13 +425,10 @@ struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir,
 		if (de->namelen != dentry->d_name.len)
 			continue;
 		if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
-			unsigned int ino;
-
-			ino = de->low_ino;
 			pde_get(de);
 			spin_unlock(&proc_subdir_lock);
 			error = -EINVAL;
-			inode = proc_get_inode(dir->i_sb, ino, de);
+			inode = proc_get_inode(dir->i_sb, de);
 			goto out_unlock;
 		}
 	}
@@ -768,12 +765,7 @@ EXPORT_SYMBOL(proc_create_data);
 
 static void free_proc_entry(struct proc_dir_entry *de)
 {
-	unsigned int ino = de->low_ino;
-
-	if (ino < PROC_DYNAMIC_FIRST)
-		return;
-
-	release_inode_number(ino);
+	release_inode_number(de->low_ino);
 
 	if (S_ISLNK(de->mode))
 		kfree(de->data);
@@ -834,12 +826,9 @@ void remove_proc_entry(const char *name, struct proc_dir_entry *parent)
 
 		wait_for_completion(de->pde_unload_completion);
 
-		goto continue_removing;
+		spin_lock(&de->pde_unload_lock);
 	}
-	spin_unlock(&de->pde_unload_lock);
 
-continue_removing:
-	spin_lock(&de->pde_unload_lock);
 	while (!list_empty(&de->pde_openers)) {
 		struct pde_opener *pdeo;
 
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 6bcb926b101b..176ce4cda68a 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -416,12 +416,11 @@ static const struct file_operations proc_reg_file_ops_no_compat = {
 };
 #endif
 
-struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
-				struct proc_dir_entry *de)
+struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
 {
 	struct inode * inode;
 
-	inode = iget_locked(sb, ino);
+	inode = iget_locked(sb, de->low_ino);
 	if (!inode)
 		return NULL;
 	if (inode->i_state & I_NEW) {
@@ -471,7 +470,7 @@ int proc_fill_super(struct super_block *s)
 	s->s_time_gran = 1;
 	
 	pde_get(&proc_root);
-	root_inode = proc_get_inode(s, PROC_ROOT_INO, &proc_root);
+	root_inode = proc_get_inode(s, &proc_root);
 	if (!root_inode)
 		goto out_no_root;
 	root_inode->i_uid = 0;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 1f24a3eddd12..9ad561ded409 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -96,7 +96,8 @@ extern spinlock_t proc_subdir_lock;
 struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);
 int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);
 unsigned long task_vsize(struct mm_struct *);
-int task_statm(struct mm_struct *, int *, int *, int *, int *);
+unsigned long task_statm(struct mm_struct *,
+	unsigned long *, unsigned long *, unsigned long *, unsigned long *);
 void task_mem(struct seq_file *, struct mm_struct *);
 
 static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
@@ -108,7 +109,7 @@ void pde_put(struct proc_dir_entry *pde);
 
 extern struct vfsmount *proc_mnt;
 int proc_fill_super(struct super_block *);
-struct inode *proc_get_inode(struct super_block *, unsigned int, struct proc_dir_entry *);
+struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *);
 
 /*
  * These are generic /proc routines that use the internal
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 6f37c391468d..d245cb23dd72 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -558,7 +558,7 @@ static int open_kcore(struct inode *inode, struct file *filp)
 static const struct file_operations proc_kcore_operations = {
 	.read		= read_kcore,
 	.open		= open_kcore,
-	.llseek		= generic_file_llseek,
+	.llseek		= default_llseek,
 };
 
 #ifdef CONFIG_MEMORY_HOTPLUG
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index a65239cfd97e..ed257d141568 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -101,6 +101,9 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 #ifdef CONFIG_MEMORY_FAILURE
 		"HardwareCorrupted: %5lu kB\n"
 #endif
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+		"AnonHugePages:  %8lu kB\n"
+#endif
 		,
 		K(i.totalram),
 		K(i.freeram),
@@ -128,7 +131,12 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		K(i.freeswap),
 		K(global_page_state(NR_FILE_DIRTY)),
 		K(global_page_state(NR_WRITEBACK)),
-		K(global_page_state(NR_ANON_PAGES)),
+		K(global_page_state(NR_ANON_PAGES)
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+		  + global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
+		  HPAGE_PMD_NR
+#endif
+		  ),
 		K(global_page_state(NR_FILE_MAPPED)),
 		K(global_page_state(NR_SHMEM)),
 		K(global_page_state(NR_SLAB_RECLAIMABLE) +
@@ -151,6 +159,10 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 #ifdef CONFIG_MEMORY_FAILURE
 		,atomic_long_read(&mce_bad_pages) << (PAGE_SHIFT - 10)
 #endif
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+		,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
+		   HPAGE_PMD_NR)
+#endif
 		);
 
 	hugetlb_report_meminfo(m);
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 3b8b45660331..6d8e6a9e93ab 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -40,7 +40,7 @@ static ssize_t kpagecount_read(struct file *file, char __user *buf,
 			ppage = pfn_to_page(pfn);
 		else
 			ppage = NULL;
-		if (!ppage)
+		if (!ppage || PageSlab(ppage))
 			pcount = 0;
 		else
 			pcount = page_mapcount(ppage);
@@ -116,15 +116,17 @@ u64 stable_page_flags(struct page *page)
 	if (PageHuge(page))
 		u |= 1 << KPF_HUGE;
 
-	u |= kpf_copy_bit(k, KPF_LOCKED,	PG_locked);
-
 	/*
-	 * Caveats on high order pages:
-	 * PG_buddy will only be set on the head page; SLUB/SLQB do the same
-	 * for PG_slab; SLOB won't set PG_slab at all on compound pages.
+	 * Caveats on high order pages: page->_count will only be set
+	 * -1 on the head page; SLUB/SLQB do the same for PG_slab;
+	 * SLOB won't set PG_slab at all on compound pages.
 	 */
+	if (PageBuddy(page))
+		u |= 1 << KPF_BUDDY;
+
+	u |= kpf_copy_bit(k, KPF_LOCKED,	PG_locked);
+
 	u |= kpf_copy_bit(k, KPF_SLAB,		PG_slab);
-	u |= kpf_copy_bit(k, KPF_BUDDY,		PG_buddy);
 
 	u |= kpf_copy_bit(k, KPF_ERROR,		PG_error);
 	u |= kpf_copy_bit(k, KPF_DIRTY,		PG_dirty);
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index d9396a4fc7ff..927cbd115e53 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -233,7 +233,7 @@ void __init proc_device_tree_init(void)
 		return;
 	root = of_find_node_by_path("/");
 	if (root == NULL) {
-		printk(KERN_ERR "/proc/device-tree: can't find root\n");
+		pr_debug("/proc/device-tree: can't find root\n");
 		return;
 	}
 	proc_device_tree_add_node(root, proc_device_tree);
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index 83adcc869437..cb761f010300 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -36,27 +36,27 @@ static void show_tty_range(struct seq_file *m, struct tty_driver *p,
 	}
 	switch (p->type) {
 	case TTY_DRIVER_TYPE_SYSTEM:
-		seq_printf(m, "system");
+		seq_puts(m, "system");
 		if (p->subtype == SYSTEM_TYPE_TTY)
-			seq_printf(m, ":/dev/tty");
+			seq_puts(m, ":/dev/tty");
 		else if (p->subtype == SYSTEM_TYPE_SYSCONS)
-			seq_printf(m, ":console");
+			seq_puts(m, ":console");
 		else if (p->subtype == SYSTEM_TYPE_CONSOLE)
-			seq_printf(m, ":vtmaster");
+			seq_puts(m, ":vtmaster");
 		break;
 	case TTY_DRIVER_TYPE_CONSOLE:
-		seq_printf(m, "console");
+		seq_puts(m, "console");
 		break;
 	case TTY_DRIVER_TYPE_SERIAL:
-		seq_printf(m, "serial");
+		seq_puts(m, "serial");
 		break;
 	case TTY_DRIVER_TYPE_PTY:
 		if (p->subtype == PTY_TYPE_MASTER)
-			seq_printf(m, "pty:master");
+			seq_puts(m, "pty:master");
 		else if (p->subtype == PTY_TYPE_SLAVE)
-			seq_printf(m, "pty:slave");
+			seq_puts(m, "pty:slave");
 		else
-			seq_printf(m, "pty");
+			seq_puts(m, "pty");
 		break;
 	default:
 		seq_printf(m, "type:%d.%d", p->type, p->subtype);
@@ -74,19 +74,19 @@ static int show_tty_driver(struct seq_file *m, void *v)
 		/* pseudo-drivers first */
 		seq_printf(m, "%-20s /dev/%-8s ", "/dev/tty", "tty");
 		seq_printf(m, "%3d %7d ", TTYAUX_MAJOR, 0);
-		seq_printf(m, "system:/dev/tty\n");
+		seq_puts(m, "system:/dev/tty\n");
 		seq_printf(m, "%-20s /dev/%-8s ", "/dev/console", "console");
 		seq_printf(m, "%3d %7d ", TTYAUX_MAJOR, 1);
-		seq_printf(m, "system:console\n");
+		seq_puts(m, "system:console\n");
 #ifdef CONFIG_UNIX98_PTYS
 		seq_printf(m, "%-20s /dev/%-8s ", "/dev/ptmx", "ptmx");
 		seq_printf(m, "%3d %7d ", TTYAUX_MAJOR, 2);
-		seq_printf(m, "system\n");
+		seq_puts(m, "system\n");
 #endif
 #ifdef CONFIG_VT
 		seq_printf(m, "%-20s /dev/%-8s ", "/dev/vc/0", "vc/0");
 		seq_printf(m, "%3d %7d ", TTY_MAJOR, 0);
-		seq_printf(m, "system:vtmaster\n");
+		seq_puts(m, "system:vtmaster\n");
 #endif
 	}
 
diff --git a/fs/proc/softirqs.c b/fs/proc/softirqs.c
index 37994737c983..62604be9f58d 100644
--- a/fs/proc/softirqs.c
+++ b/fs/proc/softirqs.c
@@ -10,16 +10,16 @@ static int show_softirqs(struct seq_file *p, void *v)
 {
 	int i, j;
 
-	seq_printf(p, "                    ");
+	seq_puts(p, "                    ");
 	for_each_possible_cpu(i)
 		seq_printf(p, "CPU%-8d", i);
-	seq_printf(p, "\n");
+	seq_putc(p, '\n');
 
 	for (i = 0; i < NR_SOFTIRQS; i++) {
 		seq_printf(p, "%12s:", softirq_to_name[i]);
 		for_each_possible_cpu(j)
 			seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
-		seq_printf(p, "\n");
+		seq_putc(p, '\n');
 	}
 	return 0;
 }
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index e15a19c93bae..1cffa2b8a2fc 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -126,7 +126,7 @@ static int show_stat(struct seq_file *p, void *v)
 
 	for (i = 0; i < NR_SOFTIRQS; i++)
 		seq_printf(p, " %u", per_softirq_sums[i]);
-	seq_printf(p, "\n");
+	seq_putc(p, '\n');
 
 	return 0;
 }
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index c126c83b9a45..60b914860f81 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -66,8 +66,9 @@ unsigned long task_vsize(struct mm_struct *mm)
 	return PAGE_SIZE * mm->total_vm;
 }
 
-int task_statm(struct mm_struct *mm, int *shared, int *text,
-	       int *data, int *resident)
+unsigned long task_statm(struct mm_struct *mm,
+			 unsigned long *shared, unsigned long *text,
+			 unsigned long *data, unsigned long *resident)
 {
 	*shared = get_mm_counter(mm, MM_FILEPAGES);
 	*text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK))
@@ -417,7 +418,8 @@ static int show_smap(struct seq_file *m, void *v)
 		   "Anonymous:      %8lu kB\n"
 		   "Swap:           %8lu kB\n"
 		   "KernelPageSize: %8lu kB\n"
-		   "MMUPageSize:    %8lu kB\n",
+		   "MMUPageSize:    %8lu kB\n"
+		   "Locked:         %8lu kB\n",
 		   (vma->vm_end - vma->vm_start) >> 10,
 		   mss.resident >> 10,
 		   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
@@ -429,7 +431,9 @@ static int show_smap(struct seq_file *m, void *v)
 		   mss.anonymous >> 10,
 		   mss.swap >> 10,
 		   vma_kernel_pagesize(vma) >> 10,
-		   vma_mmu_pagesize(vma) >> 10);
+		   vma_mmu_pagesize(vma) >> 10,
+		   (vma->vm_flags & VM_LOCKED) ?
+			(unsigned long)(mss.pss >> (10 + PSS_SHIFT)) : 0);
 
 	if (m->count < m->size)  /* vma is copied successfully */
 		m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0;
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index cb6306e63843..b535d3e5d5f1 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -92,13 +92,14 @@ unsigned long task_vsize(struct mm_struct *mm)
 	return vsize;
 }
 
-int task_statm(struct mm_struct *mm, int *shared, int *text,
-	       int *data, int *resident)
+unsigned long task_statm(struct mm_struct *mm,
+			 unsigned long *shared, unsigned long *text,
+			 unsigned long *data, unsigned long *resident)
 {
 	struct vm_area_struct *vma;
 	struct vm_region *region;
 	struct rb_node *p;
-	int size = kobjsize(mm);
+	unsigned long size = kobjsize(mm);
 
 	down_read(&mm->mmap_sem);
 	for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {