[PATCH] proc: Use struct pid not struct task_ref

Incrementally update my proc-dont-lock-task_structs-indefinitely patches so
that they work with struct pid instead of struct task_ref.

Mostly this is a straight 1-1 substitution.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 6 deletions

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 3e991c0c02e2..1535af3a912d 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -50,7 +50,6 @@
 #include <linux/time.h>
 #include <linux/backing-dev.h>
 #include <linux/sort.h>
-#include <linux/task_ref.h>
 
 #include <asm/uaccess.h>
 #include <asm/atomic.h>
@@ -2443,7 +2442,7 @@ void __cpuset_memory_pressure_bump(void)
  */
 static int proc_cpuset_show(struct seq_file *m, void *v)
 {
-        struct task_ref *tref;
+        struct pid *pid;
         struct task_struct *tsk;
         char *buf;
         int retval;
@@ -2454,8 +2453,8 @@ static int proc_cpuset_show(struct seq_file *m, void *v)
                 goto out;
 
         retval = -ESRCH;
-        tref = m->private;
-        tsk = get_tref_task(tref);
+        pid = m->private;
+        tsk = get_pid_task(pid, PIDTYPE_PID);
         if (!tsk)
                 goto out_free;
 
@@ -2478,8 +2477,8 @@ out:
 
 static int cpuset_open(struct inode *inode, struct file *file)
 {
-        struct task_ref *tref = PROC_I(inode)->tref;
-        return single_open(file, proc_cpuset_show, tref);
+        struct pid *pid = PROC_I(inode)->pid;
+        return single_open(file, proc_cpuset_show, pid);
 }
 
 struct file_operations proc_cpuset_operations = {