From: Tejun Heo <tj@kernel.org>
Date: Tue, 11 Nov 2025 19:18:11 +0000 (-1000)
Subject: sched_ext: Make handle_lockup() propagate scx_verror() result
X-Git-Tag: v6.19-rc1~177^2~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ed8df0d15022fcc092e7c7f0bd82359476cff3c;p=thirdparty%2Fkernel%2Flinux.git

sched_ext: Make handle_lockup() propagate scx_verror() result

handle_lockup() currently calls scx_verror() but ignores its return value,
always returning true when the scheduler is enabled. Make it capture and return
the result from scx_verror(). This prepares for hardlockup handling.

Cc: Dan Schatzberg <schatzberg.dan@gmail.com>
Cc: Emil Tsalapatis <etsal@meta.com>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index ad5d3902e99d7..85bb052459ec4 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -3659,6 +3659,7 @@ static __printf(1, 2) bool handle_lockup(const char *fmt, ...)
 {
 	struct scx_sched *sch;
 	va_list args;
+	bool ret;
 
 	guard(rcu)();
 
@@ -3670,9 +3671,9 @@ static __printf(1, 2) bool handle_lockup(const char *fmt, ...)
 	case SCX_ENABLING:
 	case SCX_ENABLED:
 		va_start(args, fmt);
-		scx_verror(sch, fmt, args);
+		ret = scx_verror(sch, fmt, args);
 		va_end(args);
-		return true;
+		return ret;
 	default:
 		return false;
 	}