From: Daniel Stodden <daniel.stodden@googlemail.com>
Date: Mon, 25 Mar 2013 09:33:59 +0000 (-0700)
Subject: schedutils: don't apply -a without -p
X-Git-Tag: v2.23-rc2~115
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d9b22d179a274013dd1eb29c7b9ab5225bfd7d70;p=thirdparty%2Futil-linux.git

schedutils: don't apply -a without -p

The unsuspecting user might use taskset -a mask command. Behavior then
is to exec with no affinity applied at all. Better handled by ignoring
all_tasks if no pid was given.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
---

diff --git a/schedutils/taskset.c b/schedutils/taskset.c
index aba0b6f9ee..c2b9ab6f67 100644
--- a/schedutils/taskset.c
+++ b/schedutils/taskset.c
@@ -217,7 +217,7 @@ int main(int argc, char **argv)
 		     argv[optind]);
 	}
 
-	if (all_tasks) {
+	if (all_tasks && pid) {
 		struct proc_tasks *tasks = proc_open_tasks(pid);
 		while (!proc_next_tid(tasks, &ts.pid))
 			do_taskset(&ts, new_setsize, new_set);