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pids: Compute task_tgid using signal->leader_pid

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The cost is the the same and this removes the need
to worry about complications that come from de_thread
and group_leader changing.

__task_pid_nr_ns has been updated to take advantage of this change.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2017-09-26 12:45:33 -05:00
parent 1fb53567a3
commit 7a36094d61
9 changed files with 22 additions and 17 deletions
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1
include/net/scm.h
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@ -8,6 +8,7 @@
#include <linux/security.h>
#include <linux/pid.h>
#include <linux/nsproxy.h>
#include <linux/sched/signal.h>
/* Well, we should have at least one descriptor open
* to accept passed FDs 8)