Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: more /proc and /sys file support

diff --combined arch/tile/Kconfig
index e1e5010,3f7d63c..0249b8b
--- 1/arch/tile/Kconfig
--- 2/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@@ -5,12 -5,14 +5,13 @@@ config TIL
        def_bool y
        select HAVE_KVM if !TILEGX
        select GENERIC_FIND_FIRST_BIT
 -      select GENERIC_FIND_NEXT_BIT
        select USE_GENERIC_SMP_HELPERS
        select CC_OPTIMIZE_FOR_SIZE
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_PROBE
        select GENERIC_PENDING_IRQ if SMP
        select GENERIC_IRQ_SHOW
+       select SYS_HYPERVISOR
  
  # FIXME: investigate whether we need/want these options.
  #     select HAVE_IOREMAP_PROT

diff --combined fs/proc/base.c
index 4ede550,3ad615f..14def99
--- 1/fs/proc/base.c
--- 2/fs/proc/base.c
+++ b/fs/proc/base.c
@@@ -83,6 -83,9 +83,9 @@@
  #include <linux/pid_namespace.h>
  #include <linux/fs_struct.h>
  #include <linux/slab.h>
+ #ifdef CONFIG_HARDWALL
+ #include <asm/hardwall.h>
+ #endif
  #include "internal.h"
  
  /* NOTE:
@@@ -600,7 -603,7 +603,7 @@@ static int proc_fd_access_allowed(struc
        return allowed;
  }
  
 -static int proc_setattr(struct dentry *dentry, struct iattr *attr)
 +int proc_setattr(struct dentry *dentry, struct iattr *attr)
  {
        int error;
        struct inode *inode = dentry->d_inode;
@@@ -894,20 -897,20 +897,20 @@@ static ssize_t mem_write(struct file * 
        if (!task)
                goto out_no_task;
  
 +      copied = -ENOMEM;
 +      page = (char *)__get_free_page(GFP_TEMPORARY);
 +      if (!page)
 +              goto out_task;
 +
        mm = check_mem_permission(task);
        copied = PTR_ERR(mm);
        if (IS_ERR(mm))
 -              goto out_task;
 +              goto out_free;
  
        copied = -EIO;
        if (file->private_data != (void *)((long)current->self_exec_id))
                goto out_mm;
  
 -      copied = -ENOMEM;
 -      page = (char *)__get_free_page(GFP_TEMPORARY);
 -      if (!page)
 -              goto out_mm;
 -
        copied = 0;
        while (count > 0) {
                int this_len, retval;
@@@ -929,11 -932,9 +932,11 @@@
                count -= retval;                        
        }
        *ppos = dst;
 -      free_page((unsigned long) page);
 +
  out_mm:
        mmput(mm);
 +out_free:
 +      free_page((unsigned long) page);
  out_task:
        put_task_struct(task);
  out_no_task:
@@@ -1061,7 -1062,7 +1064,7 @@@ static ssize_t oom_adjust_write(struct 
  {
        struct task_struct *task;
        char buffer[PROC_NUMBUF];
 -      long oom_adjust;
 +      int oom_adjust;
        unsigned long flags;
        int err;
  
@@@ -1073,7 -1074,7 +1076,7 @@@
                goto out;
        }
  
 -      err = strict_strtol(strstrip(buffer), 0, &oom_adjust);
 +      err = kstrtoint(strstrip(buffer), 0, &oom_adjust);
        if (err)
                goto out;
        if ((oom_adjust < OOM_ADJUST_MIN || oom_adjust > OOM_ADJUST_MAX) &&
@@@ -1170,7 -1171,7 +1173,7 @@@ static ssize_t oom_score_adj_write(stru
        struct task_struct *task;
        char buffer[PROC_NUMBUF];
        unsigned long flags;
 -      long oom_score_adj;
 +      int oom_score_adj;
        int err;
  
        memset(buffer, 0, sizeof(buffer));
@@@ -1181,7 -1182,7 +1184,7 @@@
                goto out;
        }
  
 -      err = strict_strtol(strstrip(buffer), 0, &oom_score_adj);
 +      err = kstrtoint(strstrip(buffer), 0, &oom_score_adj);
        if (err)
                goto out;
        if (oom_score_adj < OOM_SCORE_ADJ_MIN ||
@@@ -1470,7 -1471,7 +1473,7 @@@ sched_autogroup_write(struct file *file
        struct inode *inode = file->f_path.dentry->d_inode;
        struct task_struct *p;
        char buffer[PROC_NUMBUF];
 -      long nice;
 +      int nice;
        int err;
  
        memset(buffer, 0, sizeof(buffer));
@@@ -1479,9 -1480,9 +1482,9 @@@
        if (copy_from_user(buffer, buf, count))
                return -EFAULT;
  
 -      err = strict_strtol(strstrip(buffer), 0, &nice);
 -      if (err)
 -              return -EINVAL;
 +      err = kstrtoint(strstrip(buffer), 0, &nice);
 +      if (err < 0)
 +              return err;
  
        p = get_proc_task(inode);
        if (!p)
@@@ -1578,6 -1579,57 +1581,6 @@@ static const struct file_operations pro
        .release        = single_release,
  };
  
 -/*
 - * We added or removed a vma mapping the executable. The vmas are only mapped
 - * during exec and are not mapped with the mmap system call.
 - * Callers must hold down_write() on the mm's mmap_sem for these
 - */
 -void added_exe_file_vma(struct mm_struct *mm)
 -{
 -      mm->num_exe_file_vmas++;
 -}
 -
 -void removed_exe_file_vma(struct mm_struct *mm)
 -{
 -      mm->num_exe_file_vmas--;
 -      if ((mm->num_exe_file_vmas == 0) && mm->exe_file){
 -              fput(mm->exe_file);
 -              mm->exe_file = NULL;
 -      }
 -
 -}
 -
 -void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file)
 -{
 -      if (new_exe_file)
 -              get_file(new_exe_file);
 -      if (mm->exe_file)
 -              fput(mm->exe_file);
 -      mm->exe_file = new_exe_file;
 -      mm->num_exe_file_vmas = 0;
 -}
 -
 -struct file *get_mm_exe_file(struct mm_struct *mm)
 -{
 -      struct file *exe_file;
 -
 -      /* We need mmap_sem to protect against races with removal of
 -       * VM_EXECUTABLE vmas */
 -      down_read(&mm->mmap_sem);
 -      exe_file = mm->exe_file;
 -      if (exe_file)
 -              get_file(exe_file);
 -      up_read(&mm->mmap_sem);
 -      return exe_file;
 -}
 -
 -void dup_mm_exe_file(struct mm_struct *oldmm, struct mm_struct *newmm)
 -{
 -      /* It's safe to write the exe_file pointer without exe_file_lock because
 -       * this is called during fork when the task is not yet in /proc */
 -      newmm->exe_file = get_mm_exe_file(oldmm);
 -}
 -
  static int proc_exe_link(struct inode *inode, struct path *exe_path)
  {
        struct task_struct *task;
@@@ -1687,7 -1739,8 +1690,7 @@@ static int task_dumpable(struct task_st
        return 0;
  }
  
 -
 -static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task)
 +struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task)
  {
        struct inode * inode;
        struct proc_inode *ei;
@@@ -1729,7 -1782,7 +1732,7 @@@ out_unlock
        return NULL;
  }
  
 -static int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 +int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
  {
        struct inode *inode = dentry->d_inode;
        struct task_struct *task;
@@@ -1770,7 -1823,7 +1773,7 @@@
   * made this apply to all per process world readable and executable
   * directories.
   */
 -static int pid_revalidate(struct dentry *dentry, struct nameidata *nd)
 +int pid_revalidate(struct dentry *dentry, struct nameidata *nd)
  {
        struct inode *inode;
        struct task_struct *task;
@@@ -1812,7 -1865,7 +1815,7 @@@ static int pid_delete_dentry(const stru
        return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first;
  }
  
 -static const struct dentry_operations pid_dentry_operations =
 +const struct dentry_operations pid_dentry_operations =
  {
        .d_revalidate   = pid_revalidate,
        .d_delete       = pid_delete_dentry,
@@@ -1820,6 -1873,9 +1823,6 @@@
  
  /* Lookups */
  
 -typedef struct dentry *instantiate_t(struct inode *, struct dentry *,
 -                              struct task_struct *, const void *);
 -
  /*
   * Fill a directory entry.
   *
@@@ -1832,8 -1888,8 +1835,8 @@@
   * reported by readdir in sync with the inode numbers reported
   * by stat.
   */
 -static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
 -      char *name, int len,
 +int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
 +      const char *name, int len,
        instantiate_t instantiate, struct task_struct *task, const void *ptr)
  {
        struct dentry *child, *dir = filp->f_path.dentry;
@@@ -2767,7 -2823,6 +2770,7 @@@ static const struct pid_entry tgid_base
        DIR("task",       S_IRUGO|S_IXUGO, proc_task_inode_operations, proc_task_operations),
        DIR("fd",         S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
        DIR("fdinfo",     S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
 +      DIR("ns",         S_IRUSR|S_IXUGO, proc_ns_dir_inode_operations, proc_ns_dir_operations),
  #ifdef CONFIG_NET
        DIR("net",        S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
  #endif
@@@ -2842,6 -2897,9 +2845,9 @@@
  #ifdef CONFIG_TASK_IO_ACCOUNTING
        INF("io",       S_IRUGO, proc_tgid_io_accounting),
  #endif
+ #ifdef CONFIG_HARDWALL
+       INF("hardwall",   S_IRUGO, proc_pid_hardwall),
+ #endif
  };
  
  static int proc_tgid_base_readdir(struct file * filp,
@@@ -3116,7 -3174,6 +3122,7 @@@ out_no_task
  static const struct pid_entry tid_base_stuff[] = {
        DIR("fd",        S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
        DIR("fdinfo",    S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
 +      DIR("ns",        S_IRUSR|S_IXUGO, proc_ns_dir_inode_operations, proc_ns_dir_operations),
        REG("environ",   S_IRUSR, proc_environ_operations),
        INF("auxv",      S_IRUSR, proc_pid_auxv),
        ONE("status",    S_IRUGO, proc_pid_status),
@@@ -3181,6 -3238,9 +3187,9 @@@
  #ifdef CONFIG_TASK_IO_ACCOUNTING
        INF("io",       S_IRUGO, proc_tid_io_accounting),
  #endif
+ #ifdef CONFIG_HARDWALL
+       INF("hardwall",   S_IRUGO, proc_pid_hardwall),
+ #endif
  };
  
  static int proc_tid_base_readdir(struct file * filp,