11 files changed, 185 insertions, 83 deletions

diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index 7431d7ba2d..f6c7762725 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -8,8 +8,9 @@ proc-y			:= nommu.o task_nommu.o
 proc-$(CONFIG_MMU)      := mmu.o task_mmu.o
 
 proc-y       += inode.o root.o base.o generic.o array.o \
-                kmsg.o proc_tty.o proc_misc.o
+                proc_tty.o proc_misc.o
 
 proc-$(CONFIG_PROC_KCORE)       += kcore.o
 proc-$(CONFIG_PROC_VMCORE)      += vmcore.o
 proc-$(CONFIG_PROC_DEVICETREE)  += proc_devtree.o
+proc-$(CONFIG_PRINTK)   += kmsg.o
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 25e917fb47..70e4fab117 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -346,20 +346,13 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
         sigemptyset(&sigcatch);
         cutime = cstime = utime = stime = cputime_zero;
 
-        mutex_lock(&tty_mutex);
         rcu_read_lock();
         if (lock_task_sighand(task, &flags)) {
                 struct signal_struct *sig = task->signal;
-                struct tty_struct *tty = sig->tty;
-
-                if (tty) {
-                        /*
-                         * sig->tty is not stable, but tty_mutex
-                         * protects us from release_dev(tty)
-                         */
-                        barrier();
-                        tty_pgrp = tty->pgrp;
-                        tty_nr = new_encode_dev(tty_devnum(tty));
+
+                if (sig->tty) {
+                        tty_pgrp = sig->tty->pgrp;
+                        tty_nr = new_encode_dev(tty_devnum(sig->tty));
                 }
 
                 num_threads = atomic_read(&sig->count);
@@ -388,14 +381,13 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
                         stime = cputime_add(stime, sig->stime);
                 }
 
-                sid = sig->session;
+                sid = signal_session(sig);
                 pgid = process_group(task);
                 ppid = rcu_dereference(task->real_parent)->tgid;
 
                 unlock_task_sighand(task, &flags);
         }
         rcu_read_unlock();
-        mutex_unlock(&tty_mutex);
 
         if (!whole || num_threads<2)
                 wchan = get_wchan(task);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 82da55b5cf..77a57b5799 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -59,7 +59,7 @@
 #include <linux/string.h>
 #include <linux/seq_file.h>
 #include <linux/namei.h>
-#include <linux/namespace.h>
+#include <linux/mnt_namespace.h>
 #include <linux/mm.h>
 #include <linux/smp_lock.h>
 #include <linux/rcupdate.h>
@@ -72,6 +72,7 @@
 #include <linux/audit.h>
 #include <linux/poll.h>
 #include <linux/nsproxy.h>
+#include <linux/oom.h>
 #include "internal.h"
 
 /* NOTE:
@@ -86,7 +87,7 @@
 
 
 /* Worst case buffer size needed for holding an integer. */
-#define PROC_NUMBUF 10
+#define PROC_NUMBUF 13
 
 struct pid_entry {
         int len;
@@ -364,33 +365,33 @@ struct proc_mounts {
 static int mounts_open(struct inode *inode, struct file *file)
 {
         struct task_struct *task = get_proc_task(inode);
-        struct namespace *namespace = NULL;
+        struct mnt_namespace *ns = NULL;
         struct proc_mounts *p;
         int ret = -EINVAL;
 
         if (task) {
                 task_lock(task);
-                namespace = task->nsproxy->namespace;
-                if (namespace)
-                        get_namespace(namespace);
+                ns = task->nsproxy->mnt_ns;
+                if (ns)
+                        get_mnt_ns(ns);
                 task_unlock(task);
                 put_task_struct(task);
         }
 
-        if (namespace) {
+        if (ns) {
                 ret = -ENOMEM;
                 p = kmalloc(sizeof(struct proc_mounts), GFP_KERNEL);
                 if (p) {
                         file->private_data = &p->m;
                         ret = seq_open(file, &mounts_op);
                         if (!ret) {
-                                p->m.private = namespace;
-                                p->event = namespace->event;
+                                p->m.private = ns;
+                                p->event = ns->event;
                                 return 0;
                         }
                         kfree(p);
                 }
-                put_namespace(namespace);
+                put_mnt_ns(ns);
         }
         return ret;
 }
@@ -398,15 +399,15 @@ static int mounts_open(struct inode *inode, struct file *file)
 static int mounts_release(struct inode *inode, struct file *file)
 {
         struct seq_file *m = file->private_data;
-        struct namespace *namespace = m->private;
-        put_namespace(namespace);
+        struct mnt_namespace *ns = m->private;
+        put_mnt_ns(ns);
         return seq_release(inode, file);
 }
 
 static unsigned mounts_poll(struct file *file, poll_table *wait)
 {
         struct proc_mounts *p = file->private_data;
-        struct namespace *ns = p->m.private;
+        struct mnt_namespace *ns = p->m.private;
         unsigned res = 0;
 
         poll_wait(file, &ns->poll, wait);
@@ -436,20 +437,21 @@ static int mountstats_open(struct inode *inode, struct file *file)
 
         if (!ret) {
                 struct seq_file *m = file->private_data;
-                struct namespace *namespace = NULL;
+                struct mnt_namespace *mnt_ns = NULL;
                 struct task_struct *task = get_proc_task(inode);
 
                 if (task) {
                         task_lock(task);
-                        namespace = task->nsproxy->namespace;
-                        if (namespace)
-                                get_namespace(namespace);
+                        if (task->nsproxy)
+                                mnt_ns = task->nsproxy->mnt_ns;
+                        if (mnt_ns)
+                                get_mnt_ns(mnt_ns);
                         task_unlock(task);
                         put_task_struct(task);
                 }
 
-                if (namespace)
-                        m->private = namespace;
+                if (mnt_ns)
+                        m->private = mnt_ns;
                 else {
                         seq_release(inode, file);
                         ret = -EINVAL;
@@ -470,7 +472,7 @@ static struct file_operations proc_mountstats_operations = {
 static ssize_t proc_info_read(struct file * file, char __user * buf,
                           size_t count, loff_t *ppos)
 {
-        struct inode * inode = file->f_dentry->d_inode;
+        struct inode * inode = file->f_path.dentry->d_inode;
         unsigned long page;
         ssize_t length;
         struct task_struct *task = get_proc_task(inode);
@@ -510,7 +512,7 @@ static int mem_open(struct inode* inode, struct file* file)
 static ssize_t mem_read(struct file * file, char __user * buf,
                         size_t count, loff_t *ppos)
 {
-        struct task_struct *task = get_proc_task(file->f_dentry->d_inode);
+        struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
         char *page;
         unsigned long src = *ppos;
         int ret = -ESRCH;
@@ -582,7 +584,7 @@ static ssize_t mem_write(struct file * file, const char * buf,
 {
         int copied;
         char *page;
-        struct task_struct *task = get_proc_task(file->f_dentry->d_inode);
+        struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
         unsigned long dst = *ppos;
 
         copied = -ESRCH;
@@ -652,7 +654,7 @@ static struct file_operations proc_mem_operations = {
 static ssize_t oom_adjust_read(struct file *file, char __user *buf,
                                 size_t count, loff_t *ppos)
 {
-        struct task_struct *task = get_proc_task(file->f_dentry->d_inode);
+        struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
         char buffer[PROC_NUMBUF];
         size_t len;
         int oom_adjust;
@@ -681,21 +683,24 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf,
         char buffer[PROC_NUMBUF], *end;
         int oom_adjust;
 
-        if (!capable(CAP_SYS_RESOURCE))
-                return -EPERM;
         memset(buffer, 0, sizeof(buffer));
         if (count > sizeof(buffer) - 1)
                 count = sizeof(buffer) - 1;
         if (copy_from_user(buffer, buf, count))
                 return -EFAULT;
         oom_adjust = simple_strtol(buffer, &end, 0);
-        if ((oom_adjust < -16 || oom_adjust > 15) && oom_adjust != OOM_DISABLE)
+        if ((oom_adjust < OOM_ADJUST_MIN || oom_adjust > OOM_ADJUST_MAX) &&
+             oom_adjust != OOM_DISABLE)
                 return -EINVAL;
         if (*end == '\n')
                 end++;
-        task = get_proc_task(file->f_dentry->d_inode);
+        task = get_proc_task(file->f_path.dentry->d_inode);
         if (!task)
                 return -ESRCH;
+        if (oom_adjust < task->oomkilladj && !capable(CAP_SYS_RESOURCE)) {
+                put_task_struct(task);
+                return -EACCES;
+        }
         task->oomkilladj = oom_adjust;
         put_task_struct(task);
         if (end - buffer == 0)
@@ -713,7 +718,7 @@ static struct file_operations proc_oom_adjust_operations = {
 static ssize_t proc_loginuid_read(struct file * file, char __user * buf,
                                   size_t count, loff_t *ppos)
 {
-        struct inode * inode = file->f_dentry->d_inode;
+        struct inode * inode = file->f_path.dentry->d_inode;
         struct task_struct *task = get_proc_task(inode);
         ssize_t length;
         char tmpbuf[TMPBUFLEN];
@@ -729,7 +734,7 @@ static ssize_t proc_loginuid_read(struct file * file, char __user * buf,
 static ssize_t proc_loginuid_write(struct file * file, const char __user * buf,
                                    size_t count, loff_t *ppos)
 {
-        struct inode * inode = file->f_dentry->d_inode;
+        struct inode * inode = file->f_path.dentry->d_inode;
         char *page, *tmp;
         ssize_t length;
         uid_t loginuid;
@@ -848,6 +853,65 @@ static struct file_operations proc_seccomp_operations = {
 };
 #endif /* CONFIG_SECCOMP */
 
+#ifdef CONFIG_FAULT_INJECTION
+static ssize_t proc_fault_inject_read(struct file * file, char __user * buf,
+                                      size_t count, loff_t *ppos)
+{
+        struct task_struct *task = get_proc_task(file->f_dentry->d_inode);
+        char buffer[PROC_NUMBUF];
+        size_t len;
+        int make_it_fail;
+        loff_t __ppos = *ppos;
+
+        if (!task)
+                return -ESRCH;
+        make_it_fail = task->make_it_fail;
+        put_task_struct(task);
+
+        len = snprintf(buffer, sizeof(buffer), "%i\n", make_it_fail);
+        if (__ppos >= len)
+                return 0;
+        if (count > len-__ppos)
+                count = len-__ppos;
+        if (copy_to_user(buf, buffer + __ppos, count))
+                return -EFAULT;
+        *ppos = __ppos + count;
+        return count;
+}
+
+static ssize_t proc_fault_inject_write(struct file * file,
+                        const char __user * buf, size_t count, loff_t *ppos)
+{
+        struct task_struct *task;
+        char buffer[PROC_NUMBUF], *end;
+        int make_it_fail;
+
+        if (!capable(CAP_SYS_RESOURCE))
+                return -EPERM;
+        memset(buffer, 0, sizeof(buffer));
+        if (count > sizeof(buffer) - 1)
+                count = sizeof(buffer) - 1;
+        if (copy_from_user(buffer, buf, count))
+                return -EFAULT;
+        make_it_fail = simple_strtol(buffer, &end, 0);
+        if (*end == '\n')
+                end++;
+        task = get_proc_task(file->f_dentry->d_inode);
+        if (!task)
+                return -ESRCH;
+        task->make_it_fail = make_it_fail;
+        put_task_struct(task);
+        if (end - buffer == 0)
+                return -EIO;
+        return end - buffer;
+}
+
+static struct file_operations proc_fault_inject_operations = {
+        .read           = proc_fault_inject_read,
+        .write          = proc_fault_inject_write,
+};
+#endif
+
 static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
         struct inode *inode = dentry->d_inode;
@@ -1073,7 +1137,7 @@ static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
         char *name, int len,
         instantiate_t instantiate, struct task_struct *task, void *ptr)
 {
-        struct dentry *child, *dir = filp->f_dentry;
+        struct dentry *child, *dir = filp->f_path.dentry;
         struct inode *inode;
         struct qstr qname;
         ino_t ino = 0;
@@ -1152,8 +1216,8 @@ static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsm
                 spin_lock(&files->file_lock);
                 file = fcheck_files(files, fd);
                 if (file) {
-                        *mnt = mntget(file->f_vfsmnt);
-                        *dentry = dget(file->f_dentry);
+                        *mnt = mntget(file->f_path.mnt);
+                        *dentry = dget(file->f_path.dentry);
                         spin_unlock(&files->file_lock);
                         put_files_struct(files);
                         return 0;
@@ -1288,7 +1352,7 @@ static int proc_fd_fill_cache(struct file *filp, void *dirent, filldir_t filldir
 
 static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir)
 {
-        struct dentry *dentry = filp->f_dentry;
+        struct dentry *dentry = filp->f_path.dentry;
         struct inode *inode = dentry->d_inode;
         struct task_struct *p = get_proc_task(inode);
         unsigned int fd, tid, ino;
@@ -1435,7 +1499,7 @@ static int proc_pident_readdir(struct file *filp,
 {
         int i;
         int pid;
-        struct dentry *dentry = filp->f_dentry;
+        struct dentry *dentry = filp->f_path.dentry;
         struct inode *inode = dentry->d_inode;
         struct task_struct *task = get_proc_task(inode);
         struct pid_entry *p, *last;
@@ -1491,7 +1555,7 @@ out_no_task:
 static ssize_t proc_pid_attr_read(struct file * file, char __user * buf,
                                   size_t count, loff_t *ppos)
 {
-        struct inode * inode = file->f_dentry->d_inode;
+        struct inode * inode = file->f_path.dentry->d_inode;
         unsigned long page;
         ssize_t length;
         struct task_struct *task = get_proc_task(inode);
@@ -1507,7 +1571,7 @@ static ssize_t proc_pid_attr_read(struct file * file, char __user * buf,
                 goto out;
 
         length = security_getprocattr(task,
-                                      (char*)file->f_dentry->d_name.name,
+                                      (char*)file->f_path.dentry->d_name.name,
                                       (void*)page, count);
         if (length >= 0)
                 length = simple_read_from_buffer(buf, count, ppos, (char *)page, length);
@@ -1521,7 +1585,7 @@ out_no_task:
 static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf,
                                    size_t count, loff_t *ppos)
 {
-        struct inode * inode = file->f_dentry->d_inode;
+        struct inode * inode = file->f_path.dentry->d_inode;
         char *page;
         ssize_t length;
         struct task_struct *task = get_proc_task(inode);
@@ -1547,7 +1611,7 @@ static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf,
                 goto out_free;
 
         length = security_setprocattr(task,
-                                      (char*)file->f_dentry->d_name.name,
+                                      (char*)file->f_path.dentry->d_name.name,
                                       (void*)page, count);
 out_free:
         free_page((unsigned long) page);
@@ -1740,6 +1804,27 @@ static int proc_base_fill_cache(struct file *filp, void *dirent, filldir_t filld
                                 proc_base_instantiate, task, p);
 }
 
+#ifdef CONFIG_TASK_IO_ACCOUNTING
+static int proc_pid_io_accounting(struct task_struct *task, char *buffer)
+{
+        return sprintf(buffer,
+                        "rchar: %llu\n"
+                        "wchar: %llu\n"
+                        "syscr: %llu\n"
+                        "syscw: %llu\n"
+                        "read_bytes: %llu\n"
+                        "write_bytes: %llu\n"
+                        "cancelled_write_bytes: %llu\n",
+                        (unsigned long long)task->rchar,
+                        (unsigned long long)task->wchar,
+                        (unsigned long long)task->syscr,
+                        (unsigned long long)task->syscw,
+                        (unsigned long long)task->ioac.read_bytes,
+                        (unsigned long long)task->ioac.write_bytes,
+                        (unsigned long long)task->ioac.cancelled_write_bytes);
+}
+#endif
+
 /*
  * Thread groups
  */
@@ -1788,6 +1873,12 @@ static struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_AUDITSYSCALL
         REG("loginuid",   S_IWUSR|S_IRUGO, loginuid),
 #endif
+#ifdef CONFIG_FAULT_INJECTION
+        REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject),
+#endif
+#ifdef CONFIG_TASK_IO_ACCOUNTING
+        INF("io",       S_IRUGO, pid_io_accounting),
+#endif
 };
 
 static int proc_tgid_base_readdir(struct file * filp,
@@ -1880,8 +1971,9 @@ out:
         return;
 }
 
-struct dentry *proc_pid_instantiate(struct inode *dir,
-        struct dentry * dentry, struct task_struct *task, void *ptr)
+static struct dentry *proc_pid_instantiate(struct inode *dir,
+                                           struct dentry * dentry,
+                                           struct task_struct *task, void *ptr)
 {
         struct dentry *error = ERR_PTR(-ENOENT);
         struct inode *inode;
@@ -1988,7 +2080,7 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi
 int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
 {
         unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
-        struct task_struct *reaper = get_proc_task(filp->f_dentry->d_inode);
+        struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
         struct task_struct *task;
         int tgid;
 
@@ -2062,6 +2154,9 @@ static struct pid_entry tid_base_stuff[] = {
 #ifdef CONFIG_AUDITSYSCALL
         REG("loginuid",  S_IWUSR|S_IRUGO, loginuid),
 #endif
+#ifdef CONFIG_FAULT_INJECTION
+        REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject),
+#endif
 };
 
 static int proc_tid_base_readdir(struct file * filp,
@@ -2229,7 +2324,7 @@ static int proc_task_fill_cache(struct file *filp, void *dirent, filldir_t filld
 /* for the /proc/TGID/task/ directories */
 static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir)
 {
-        struct dentry *dentry = filp->f_dentry;
+        struct dentry *dentry = filp->f_path.dentry;
         struct inode *inode = dentry->d_inode;
         struct task_struct *leader = get_proc_task(inode);
         struct task_struct *task;
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 4ba03009cf..853cb877d5 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -52,7 +52,7 @@ static ssize_t
 proc_file_read(struct file *file, char __user *buf, size_t nbytes,
                loff_t *ppos)
 {
-        struct inode * inode = file->f_dentry->d_inode;
+        struct inode * inode = file->f_path.dentry->d_inode;
         char    *page;
         ssize_t retval=0;
         int     eof=0;
@@ -203,7 +203,7 @@ static ssize_t
 proc_file_write(struct file *file, const char __user *buffer,
                 size_t count, loff_t *ppos)
 {
-        struct inode *inode = file->f_dentry->d_inode;
+        struct inode *inode = file->f_path.dentry->d_inode;
         struct proc_dir_entry * dp;
         
         dp = PDE(inode);
@@ -432,7 +432,7 @@ int proc_readdir(struct file * filp,
         struct proc_dir_entry * de;
         unsigned int ino;
         int i;
-        struct inode *inode = filp->f_dentry->d_inode;
+        struct inode *inode = filp->f_path.dentry->d_inode;
         int ret = 0;
 
         lock_kernel();
@@ -453,7 +453,7 @@ int proc_readdir(struct file * filp,
                         /* fall through */
                 case 1:
                         if (filldir(dirent, "..", 2, i,
-                                    parent_ino(filp->f_dentry),
+                                    parent_ino(filp->f_path.dentry),
                                     DT_DIR) < 0)
                                 goto out;
                         i++;
@@ -558,7 +558,7 @@ static void proc_kill_inodes(struct proc_dir_entry *de)
         file_list_lock();
         list_for_each(p, &sb->s_files) {
                 struct file * filp = list_entry(p, struct file, f_u.fu_list);
-                struct dentry * dentry = filp->f_dentry;
+                struct dentry * dentry = filp->f_path.dentry;
                 struct inode * inode;
                 const struct file_operations *fops;
 
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 49dfb2ab78..e26945ba68 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -81,14 +81,14 @@ static void proc_read_inode(struct inode * inode)
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 }
 
-static kmem_cache_t * proc_inode_cachep;
+static struct kmem_cache * proc_inode_cachep;
 
 static struct inode *proc_alloc_inode(struct super_block *sb)
 {
         struct proc_inode *ei;
         struct inode *inode;
 
-        ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, SLAB_KERNEL);
+        ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, GFP_KERNEL);
         if (!ei)
                 return NULL;
         ei->pid = NULL;
@@ -105,7 +105,7 @@ static void proc_destroy_inode(struct inode *inode)
         kmem_cache_free(proc_inode_cachep, PROC_I(inode));
 }
 
-static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
 {
         struct proc_inode *ei = (struct proc_inode *) foo;
 
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 1294eda4ac..1be73082ed 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -22,6 +22,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
+#define CORE_STR "CORE"
 
 static int open_kcore(struct inode * inode, struct file * filp)
 {
@@ -82,10 +83,11 @@ static size_t get_kcore_size(int *nphdr, size_t *elf_buflen)
         }
         *elf_buflen =   sizeof(struct elfhdr) + 
                         (*nphdr + 2)*sizeof(struct elf_phdr) + 
-                        3 * (sizeof(struct elf_note) + 4) +
-                        sizeof(struct elf_prstatus) +
-                        sizeof(struct elf_prpsinfo) +
-                        sizeof(struct task_struct);
+                        3 * ((sizeof(struct elf_note)) +
+                             roundup(sizeof(CORE_STR), 4)) +
+                        roundup(sizeof(struct elf_prstatus), 4) +
+                        roundup(sizeof(struct elf_prpsinfo), 4) +
+                        roundup(sizeof(struct task_struct), 4);
         *elf_buflen = PAGE_ALIGN(*elf_buflen);
         return size + *elf_buflen;
 }
@@ -210,7 +212,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
         nhdr->p_offset  = offset;
 
         /* set up the process status */
-        notes[0].name = "CORE";
+        notes[0].name = CORE_STR;
         notes[0].type = NT_PRSTATUS;
         notes[0].datasz = sizeof(struct elf_prstatus);
         notes[0].data = &prstatus;
@@ -221,7 +223,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
         bufp = storenote(&notes[0], bufp);
 
         /* set up the process info */
-        notes[1].name   = "CORE";
+        notes[1].name   = CORE_STR;
         notes[1].type   = NT_PRPSINFO;
         notes[1].datasz = sizeof(struct elf_prpsinfo);
         notes[1].data   = &prpsinfo;
@@ -238,7 +240,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
         bufp = storenote(&notes[1], bufp);
 
         /* set up the task structure */
-        notes[2].name   = "CORE";
+        notes[2].name   = CORE_STR;
         notes[2].type   = NT_TASKSTRUCT;
         notes[2].datasz = sizeof(struct task_struct);
         notes[2].data   = current;
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index d7dbdf9e0f..5ec67257e5 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -46,7 +46,7 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
         file = vma->vm_file;
 
         if (file) {
-                struct inode *inode = vma->vm_file->f_dentry->d_inode;
+                struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
                 dev = inode->i_sb->s_dev;
                 ino = inode->i_ino;
         }
@@ -67,7 +67,7 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
                 if (len < 1)
                         len = 1;
                 seq_printf(m, "%*c", len, ' ');
-                seq_path(m, file->f_vfsmnt, file->f_dentry, "");
+                seq_path(m, file->f_path.mnt, file->f_path.dentry, "");
         }
 
         seq_putc(m, '\n');
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 93c43b676e..92ea7743fe 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -39,13 +39,15 @@
 #include <linux/seq_file.h>
 #include <linux/times.h>
 #include <linux/profile.h>
+#include <linux/utsname.h>
 #include <linux/blkdev.h>
 #include <linux/hugetlb.h>
 #include <linux/jiffies.h>
 #include <linux/sysrq.h>
 #include <linux/vmalloc.h>
 #include <linux/crash_dump.h>
-#include <linux/pspace.h>
+#include <linux/pid_namespace.h>
+#include <linux/compile.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
@@ -92,7 +94,7 @@ static int loadavg_read_proc(char *page, char **start, off_t off,
                 LOAD_INT(a), LOAD_FRAC(a),
                 LOAD_INT(b), LOAD_FRAC(b),
                 LOAD_INT(c), LOAD_FRAC(c),
-                nr_running(), nr_threads, init_pspace.last_pid);
+                nr_running(), nr_threads, current->nsproxy->pid_ns->last_pid);
         return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
@@ -252,8 +254,15 @@ static int version_read_proc(char *page, char **start, off_t off,
 {
         int len;
 
-        strcpy(page, linux_banner);
-        len = strlen(page);
+        /* FIXED STRING! Don't touch! */
+        len = snprintf(page, PAGE_SIZE,
+                "%s version %s"
+                " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
+                " (" LINUX_COMPILER ")"
+                " %s\n",
+                utsname()->sysname,
+                utsname()->release,
+                utsname()->version);
         return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
@@ -696,9 +705,11 @@ void __init proc_misc_init(void)
         proc_symlink("mounts", NULL, "self/mounts");
 
         /* And now for trickier ones */
+#ifdef CONFIG_PRINTK
         entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
         if (entry)
                 entry->proc_fops = &proc_kmsg_operations;
+#endif
         create_seq_entry("devices", 0, &proc_devinfo_operations);
         create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
 #ifdef CONFIG_BLOCK
diff --git a/fs/proc/root.c b/fs/proc/root.c
index ffe66c3848..64d242b6dc 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -13,6 +13,7 @@
 #include <linux/proc_fs.h>
 #include <linux/stat.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 #include <linux/module.h>
 #include <linux/bitops.h>
 #include <linux/smp_lock.h>
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 6b769afac5..55ade0d156 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -94,8 +94,8 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount *
         }
 
         if (vma) {
-                *mnt = mntget(vma->vm_file->f_vfsmnt);
-                *dentry = dget(vma->vm_file->f_dentry);
+                *mnt = mntget(vma->vm_file->f_path.mnt);
+                *dentry = dget(vma->vm_file->f_path.dentry);
                 result = 0;
         }
 
@@ -135,7 +135,7 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats
         int len;
 
         if (file) {
-                struct inode *inode = vma->vm_file->f_dentry->d_inode;
+                struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
                 dev = inode->i_sb->s_dev;
                 ino = inode->i_ino;
         }
@@ -156,7 +156,7 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats
          */
         if (file) {
                 pad_len_spaces(m, len);
-                seq_path(m, file->f_vfsmnt, file->f_dentry, "\n");
+                seq_path(m, file->f_path.mnt, file->f_path.dentry, "\n");
         } else {
                 const char *name = arch_vma_name(vma);
                 if (!name) {
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 091aa8e48e..fcc5caf93f 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -126,8 +126,8 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount *
         }
 
         if (vma) {
-                *mnt = mntget(vma->vm_file->f_vfsmnt);
-                *dentry = dget(vma->vm_file->f_dentry);
+                *mnt = mntget(vma->vm_file->f_path.mnt);
+                *dentry = dget(vma->vm_file->f_path.dentry);
                 result = 0;
         }