pids: sys_setpgid: use change_pid() helper
authorOleg Nesterov <oleg@tv-sign.ru>
Wed, 30 Apr 2008 07:54:27 +0000 (00:54 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 30 Apr 2008 15:29:49 +0000 (08:29 -0700)
commit83beaf3c6c75b36b7c9be7f555c8cf7797842cc5
treee134ff1fcd8aec134ecde984a4b90d221f79af15
parent24336eaeecea860b2a82530e07c80bc7e0558b73
pids: sys_setpgid: use change_pid() helper

Use change_pid() instead of detach_pid() + attach_pid() in sys_setpgid().

This way task_pgrp() is not NULL in between.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/sys.c