From: David Carlier <devnexen@gmail.com>
Date: Sat, 14 Feb 2026 08:00:33 +0000 (+0000)
Subject: tools/sched_ext: scx_userland: fix stale data on restart
X-Git-Tag: ceph-for-7.0-rc4~125^2~4
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=07676846132340c7d0f50eca189a24cea4ae3cd8;p=ceph-client.git

tools/sched_ext: scx_userland: fix stale data on restart

Reset all counters, tasks and vruntime_head list on restart.

Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/tools/sched_ext/scx_userland.c b/tools/sched_ext/scx_userland.c
index 63f89b35d999..504a80824f5c 100644
--- a/tools/sched_ext/scx_userland.c
+++ b/tools/sched_ext/scx_userland.c
@@ -375,6 +375,14 @@ static void pre_bootstrap(int argc, char **argv)
 static void bootstrap(char *comm)
 {
 	exit_req = 0;
+	min_vruntime = 0.0;
+	nr_vruntime_enqueues = 0;
+	nr_vruntime_dispatches = 0;
+	nr_vruntime_failed = 0;
+	nr_curr_enqueued = 0;
+	memset(tasks, 0, pid_max * sizeof(*tasks));
+	LIST_INIT(&vruntime_head);
+
 	skel = SCX_OPS_OPEN(userland_ops, scx_userland);
 
 	skel->rodata->num_possible_cpus = libbpf_num_possible_cpus();