[PATCH v2 09/14] sched_ext: Make handle_lockup() propagate scx_verror() result

Tejun Heo
2025-11-10T20:56:47Z

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>
---
kernel/sched/ext.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index d9572bf99b5b..566ef100e2be 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -3655,6 +3655,7 @@ static __printf(1, 2) bool handle_lockup(const char *fmt, ...)
{
struct scx_sched *sch;
va_list args;
+ bool ret;

guard(rcu)();

@@ -3666,9 +3667,9 @@ 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;
}
--
2.51.2