Change zap_threads() paths to use for_each_thread() rather than
while_each_thread().
While at it, change zap_threads() to avoid the nested if's to make
the code more readable and lessen the indentation.
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
fs/coredump.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/fs/coredump.c b/fs/coredump.c
index 4fed8d0..b3c153c 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -292,15 +292,14 @@ static int zap_process(struct task_struct *start, int
exit_code, int flags)
start->signal->group_exit_code = exit_code;
start->signal->group_stop_count = 0;
- t = start;
- do {
+ for_each_thread(start, t) {
task_clear_jobctl_pending(t, JOBCTL_PENDING_MASK);
if (t != current && t->mm) {
sigaddset(&t->pending.signal, SIGKILL);
signal_wake_up(t, 1);
nr++;
}
- } while_each_thread(start, t);
+ }
return nr;
}
@@ -362,18 +361,18 @@ static int zap_threads(struct task_struct *tsk, struct
mm_struct *mm,
continue;
if (g->flags & PF_KTHREAD)
continue;
- p = g;
- do {
- if (p->mm) {
- if (unlikely(p->mm == mm)) {
- lock_task_sighand(p, &flags);
- nr += zap_process(p, exit_code,
- SIGNAL_GROUP_EXIT);
- unlock_task_sighand(p, &flags);
- }
- break;
+
+ for_each_thread(g, p) {
+ if (unlikely(!p->mm))
+ continue;
+ if (unlikely(p->mm == mm)) {
+ lock_task_sighand(p, &flags);
+ nr += zap_process(p, exit_code,
+ SIGNAL_GROUP_EXIT);
+ unlock_task_sighand(p, &flags);
}
- } while_each_thread(g, p);
+ break;
+ }
}
rcu_read_unlock();
done:
--
2.4.3
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