linux-hardening - [RFC][PATCH v2 11/29] sched/core: Annotate static information into Kmemdump

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Message-ID: <20250724135512.518487-12-eugen.hristev@linaro.org>
Date: Thu, 24 Jul 2025 16:54:54 +0300
From: Eugen Hristev <eugen.hristev@...aro.org>
To: linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-arch@...r.kernel.org,
	linux-mm@...ck.org,
	tglx@...utronix.de,
	andersson@...nel.org,
	pmladek@...e.com
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-hardening@...r.kernel.org,
	eugen.hristev@...aro.org,
	corbet@....net,
	mojha@....qualcomm.com,
	rostedt@...dmis.org,
	jonechou@...gle.com,
	tudor.ambarus@...aro.org
Subject: [RFC][PATCH v2 11/29] sched/core: Annotate static information into Kmemdump

Annotate vital static information into kmemdump:
 - runqueues

Information on these variables is stored into dedicated kmemdump section.

Signed-off-by: Eugen Hristev <eugen.hristev@...aro.org>
---
 kernel/sched/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2343f5691c54..18ba6c1e174f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -67,6 +67,7 @@
 #include <linux/wait_api.h>
 #include <linux/workqueue_api.h>
 #include <linux/livepatch_sched.h>
+#include <linux/kmemdump.h>
 
 #ifdef CONFIG_PREEMPT_DYNAMIC
 # ifdef CONFIG_GENERIC_IRQ_ENTRY
@@ -119,6 +120,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(sched_update_nr_running_tp);
 EXPORT_TRACEPOINT_SYMBOL_GPL(sched_compute_energy_tp);
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
+KMEMDUMP_VAR_CORE(runqueues, sizeof(runqueues));
 
 #ifdef CONFIG_SCHED_PROXY_EXEC
 DEFINE_STATIC_KEY_TRUE(__sched_proxy_exec);
-- 
2.43.0