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document de_thread() with exit_notify() connection

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Add a couple of small comments, it is not easy to see what this code does.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2008-04-30 00:53:12 -07:00 • committed by Linus Torvalds
parent 376e1d2531
commit 2800d8d19e
2 changed files with 2 additions and 1 deletions
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2
fs/exec.c
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@ -798,7 +798,7 @@ static int de_thread(struct task_struct *tsk)
if (!thread_group_leader(tsk)) {
leader = tsk->group_leader;
sig->notify_count = -1;
sig->notify_count = -1; /* for exit_notify() */
for (;;) {
write_lock_irq(&tasklist_lock);
if (likely(leader->exit_state))