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authorOleg Nesterov <oleg@redhat.com>2013-09-11 14:20:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-11 15:56:56 -0700
commite1403b8edf669ff49bbdf602cc97fefa2760cb15 (patch)
treeab4c68709afca445b444577e9b29b53ed72eee17 /include
parent28e8be31803b19d0d8f76216cb11b480b8a98bec (diff)
include/linux/sched.h: don't use task->pid/tgid in same_thread_group/has_group_leader_pid
task_struct->pid/tgid should go away. 1. Change same_thread_group() to use task->signal for comparison. 2. Change has_group_leader_pid(task) to compare task_pid(task) with signal->leader_pid. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Sergey Dyasly <dserrg@gmail.com> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sched.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ce1e1c0aaa33..45f254dddafc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2169,15 +2169,15 @@ static inline bool thread_group_leader(struct task_struct *p)
* all we care about is that we have a task with the appropriate
* pid, we don't actually care if we have the right task.
*/
-static inline int has_group_leader_pid(struct task_struct *p)
+static inline bool has_group_leader_pid(struct task_struct *p)
{
- return p->pid == p->tgid;
+ return task_pid(p) == p->signal->leader_pid;
}
static inline
-int same_thread_group(struct task_struct *p1, struct task_struct *p2)
+bool same_thread_group(struct task_struct *p1, struct task_struct *p2)
{
- return p1->tgid == p2->tgid;
+ return p1->signal == p2->signal;
}
static inline struct task_struct *next_thread(const struct task_struct *p)