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getrusage-use-__for_each_thread.patch removed from -mm tree

merged mm-nonmm-stable Andrew Morton 1 participant 1 message Oct 4, 2023

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Andrew Morton

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The quilt patch titled
Subject: getrusage: use __for_each_thread()
has been removed from the -mm tree. Its filename was
getrusage-use-__for_each_thread.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Oleg Nesterov <[email protected]>
Subject: getrusage: use __for_each_thread()
Date: Sat, 9 Sep 2023 19:26:29 +0200

do/while_each_thread should be avoided when possible.

Plus this change allows to avoid lock_task_sighand(), we can use rcu and/or sig->stats_lock instead.

---

 kernel/sys.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
kernel/sys.c renamed from kernel/sys.c~getrusage-use-__for_each_thread +1 -3
@@ -1830,10 +1830,8 @@ void getrusage(struct task_struct *p, in
 		r->ru_oublock += sig->oublock;
 		if (maxrss < sig->maxrss)
 			maxrss = sig->maxrss;
-		t = p;
-		do {
+		__for_each_thread(sig, t)
 			accumulate_thread_rusage(t, r);
-		} while_each_thread(p, t);
 		break;
 
 	default:

_

Patches currently in -mm which might be from [email protected] are