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)) {