Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

[karo-tx-linux.git] / fs / proc / internal.h

diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index e1167a1c9126ee5f6a91971fec50ff3eaa79cce4..cceaab07ad549caaa124b71e3db01f126052ef59 100644 (file)
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -9,6 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <linux/sched.h>
 #include <linux/proc_fs.h>
 struct  ctl_table_header;
 
@@ -65,6 +66,7 @@ extern const struct file_operations proc_clear_refs_operations;
 extern const struct file_operations proc_pagemap_operations;
 extern const struct file_operations proc_net_operations;
 extern const struct inode_operations proc_net_inode_operations;
+extern const struct inode_operations proc_pid_link_inode_operations;
 
 struct proc_maps_private {
        struct pid *pid;
@@ -91,6 +93,52 @@ static inline int proc_fd(struct inode *inode)
        return PROC_I(inode)->fd;
 }
 
+static inline int task_dumpable(struct task_struct *task)
+{
+       int dumpable = 0;
+       struct mm_struct *mm;
+
+       task_lock(task);
+       mm = task->mm;
+       if (mm)
+               dumpable = get_dumpable(mm);
+       task_unlock(task);
+       if (dumpable == SUID_DUMPABLE_ENABLED)
+               return 1;
+       return 0;
+}
+
+static inline int pid_delete_dentry(const struct dentry * dentry)
+{
+       /* Is the task we represent dead?
+        * If so, then don't put the dentry on the lru list,
+        * kill it immediately.
+        */
+       return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first;
+}
+
+static inline unsigned name_to_int(struct dentry *dentry)
+{
+       const char *name = dentry->d_name.name;
+       int len = dentry->d_name.len;
+       unsigned n = 0;
+
+       if (len > 1 && *name == '0')
+               goto out;
+       while (len-- > 0) {
+               unsigned c = *name++ - '0';
+               if (c > 9)
+                       goto out;
+               if (n >= (~0U-9)/10)
+                       goto out;
+               n *= 10;
+               n += c;
+       }
+       return n;
+out:
+       return ~0U;
+}
+
 struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino,
                struct dentry *dentry);
 int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent,