From: Oleg Nesterov <oleg@tv-sign.ru>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Pavel Emelyanov <xemul@openvz.org>,
Roland McGrath <roland@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 3/4] pids: sys_setpgid: use change_pid() helper
Date: Thu, 20 Mar 2008 18:28:18 +0300 [thread overview]
Message-ID: <20080320152818.GA6338@tv-sign.ru> (raw)
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>
--- 25/kernel/sys.c~3_SETPGRP 2008-02-18 19:15:40.000000000 +0300
+++ 25/kernel/sys.c 2008-03-20 18:21:17.000000000 +0300
@@ -972,8 +972,7 @@ asmlinkage long sys_setpgid(pid_t pid, p
goto out;
if (task_pgrp(p) != pgrp) {
- detach_pid(p, PIDTYPE_PGID);
- attach_pid(p, PIDTYPE_PGID, pgrp);
+ change_pid(p, PIDTYPE_PGID, pgrp);
set_task_pgrp(p, pid_nr(pgrp));
}
reply other threads:[~2008-03-20 15:24 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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