mm/kfence: remove hung_task cruft
commit fdf756f71271 ("sched: Fix more TASK_state comparisons") makes
hung_task not to monitor TASK_IDLE tasks. The special handling to
workaround hung_task warnings is not required anymore.
Link: https://lkml.kernel.org/r/1667986006-25420-1-git-send-email-quic_pkondeti@quicinc.com
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
diff --git a/mm/kfence/core.c b/mm/kfence/core.c
index 1417888..08f5bd6 100644
--- a/mm/kfence/core.c
+++ b/mm/kfence/core.c
@@ -26,7 +26,6 @@
#include <linux/random.h>
#include <linux/rcupdate.h>
#include <linux/sched/clock.h>
-#include <linux/sched/sysctl.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
@@ -799,16 +798,7 @@ static void toggle_allocation_gate(struct work_struct *work)
/* Enable static key, and await allocation to happen. */
static_branch_enable(&kfence_allocation_key);
- if (sysctl_hung_task_timeout_secs) {
- /*
- * During low activity with no allocations we might wait a
- * while; let's avoid the hung task warning.
- */
- wait_event_idle_timeout(allocation_wait, atomic_read(&kfence_allocation_gate),
- sysctl_hung_task_timeout_secs * HZ / 2);
- } else {
- wait_event_idle(allocation_wait, atomic_read(&kfence_allocation_gate));
- }
+ wait_event_idle(allocation_wait, atomic_read(&kfence_allocation_gate));
/* Disable static key and reset timer. */
static_branch_disable(&kfence_allocation_key);
