tree 56397e15561f77a3aed272c006c275e63f611091
parent 0cf01f6685bef41dea37bbec606f375b7a98fd98
author Pavel Emelyanov <xemul@openvz.org> 1205971245 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1205978015 -0700

memcgroup: fix check for thread being a group leader in memcgroup

The check t->pid == t->pid is not the blessed way to check whether a task is a
group leader.

This is not about the code beautifulness only, but about pid namespaces fixes
- both the tgid and the pid fields on the task_struct are (slowly :( )
becoming deprecated.

Besides, the thread_group_leader() macro makes only one dereference :)

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>