proc: seqfile convert proc_pid_status to properly handle pid namespaces

Currently we possibly lookup the pid in the wrong pid namespace.  So
seq_file convert proc_pid_status which ensures the proper pid namespaces is
passed in.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: another build fix]
[akpm@linux-foundation.org: s390 build fix]
[akpm@linux-foundation.org: fix task_name() output]
[akpm@linux-foundation.org: fix nommu build]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Andrew Morgan <morgan@kernel.org>
Cc: Serge Hallyn <serue@us.ibm.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
index 4f744609cd11..dfec2d011c0d 100644
--- a/include/asm-s390/processor.h
+++ b/include/asm-s390/processor.h
@@ -161,6 +161,7 @@ struct stack_frame {
 /* Forward declaration, a strange C thing */
 struct task_struct;
 struct mm_struct;
+struct seq_file;
 
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
@@ -177,7 +178,7 @@ extern unsigned long thread_saved_pc(struct task_struct *t);
 /*
  * Print register of task into buffer. Used in fs/proc/array.c.
  */
-extern char *task_show_regs(struct task_struct *task, char *buffer);
+extern void task_show_regs(struct seq_file *m, struct task_struct *task);
 
 extern void show_registers(struct pt_regs *regs);
 extern void show_code(struct pt_regs *regs);