Merge branch 'linus' into x86/apic-cleanups

Conflicts:
	arch/x86/include/asm/io_apic.h

Merge reason: Resolve the conflict, update to a more recent -rc base

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 80 insertions, 1 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index f3d02ca461ec..08cba2c3b612 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1407,6 +1407,82 @@ static const struct file_operations proc_pid_sched_operations = {
 
 #endif
 
+#ifdef CONFIG_SCHED_AUTOGROUP
+/*
+ * Print out autogroup related information:
+ */
+static int sched_autogroup_show(struct seq_file *m, void *v)
+{
+        struct inode *inode = m->private;
+        struct task_struct *p;
+
+        p = get_proc_task(inode);
+        if (!p)
+                return -ESRCH;
+        proc_sched_autogroup_show_task(p, m);
+
+        put_task_struct(p);
+
+        return 0;
+}
+
+static ssize_t
+sched_autogroup_write(struct file *file, const char __user *buf,
+            size_t count, loff_t *offset)
+{
+        struct inode *inode = file->f_path.dentry->d_inode;
+        struct task_struct *p;
+        char buffer[PROC_NUMBUF];
+        long nice;
+        int err;
+
+        memset(buffer, 0, sizeof(buffer));
+        if (count > sizeof(buffer) - 1)
+                count = sizeof(buffer) - 1;
+        if (copy_from_user(buffer, buf, count))
+                return -EFAULT;
+
+        err = strict_strtol(strstrip(buffer), 0, &nice);
+        if (err)
+                return -EINVAL;
+
+        p = get_proc_task(inode);
+        if (!p)
+                return -ESRCH;
+
+        err = nice;
+        err = proc_sched_autogroup_set_nice(p, &err);
+        if (err)
+                count = err;
+
+        put_task_struct(p);
+
+        return count;
+}
+
+static int sched_autogroup_open(struct inode *inode, struct file *filp)
+{
+        int ret;
+
+        ret = single_open(filp, sched_autogroup_show, NULL);
+        if (!ret) {
+                struct seq_file *m = filp->private_data;
+
+                m->private = inode;
+        }
+        return ret;
+}
+
+static const struct file_operations proc_pid_sched_autogroup_operations = {
+        .open           = sched_autogroup_open,
+        .read           = seq_read,
+        .write          = sched_autogroup_write,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+#endif /* CONFIG_SCHED_AUTOGROUP */
+
 static ssize_t comm_write(struct file *file, const char __user *buf,
                                 size_t count, loff_t *offset)
 {
@@ -1574,7 +1650,7 @@ static int do_proc_readlink(struct path *path, char __user *buffer, int buflen)
         if (!tmp)
                 return -ENOMEM;
 
-        pathname = d_path_with_unreachable(path, tmp, PAGE_SIZE);
+        pathname = d_path(path, tmp, PAGE_SIZE);
         len = PTR_ERR(pathname);
         if (IS_ERR(pathname))
                 goto out;
@@ -2733,6 +2809,9 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_SCHED_DEBUG
         REG("sched",      S_IRUGO|S_IWUSR, proc_pid_sched_operations),
 #endif
+#ifdef CONFIG_SCHED_AUTOGROUP
+        REG("autogroup",  S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
+#endif
         REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
 #ifdef CONFIG_HAVE_ARCH_TRACEHOOK
         INF("syscall",    S_IRUSR, proc_pid_syscall),