linux-kernel - [PATCH] cpu/hotplug: Increase the number of dynamic states

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20231219033411.816100-1-xiaoming.wang@intel.com>
Date: Tue, 19 Dec 2023 11:34:11 +0800
From: wangxiaoming321 <xiaoming.wang@...el.com>
To: tglx@...utronix.de,
	peterz@...radead.org,
	linux-kernel@...r.kernel.org
Cc: wangxiaoming321 <xiaoming.wang@...el.com>
Subject: [PATCH] cpu/hotplug: Increase the number of dynamic states

The dynamically allocatable hotplug state space can be exhausted by
the existing drivers and infrastructure which install CPU hotplug
states dynamically. That prevents new drivers and infrastructure from
installing dynamically allocated states.

Increase the size of the CPUHP_AP_ONLINE_DYN state by 10 to make
room.

Signed-off-by: wangxiaoming321 <xiaoming.wang@...el.com>
---
 include/linux/cpuhotplug.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index efc0c0b07efb..c88a58c363f1 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -251,7 +251,7 @@ enum cpuhp_state {
 	CPUHP_AP_RCUTREE_ONLINE,
 	CPUHP_AP_BASE_CACHEINFO_ONLINE,
 	CPUHP_AP_ONLINE_DYN,
-	CPUHP_AP_ONLINE_DYN_END		= CPUHP_AP_ONLINE_DYN + 30,
+	CPUHP_AP_ONLINE_DYN_END		= CPUHP_AP_ONLINE_DYN + 40,
 	/* Must be after CPUHP_AP_ONLINE_DYN for node_states[N_CPU] update */
 	CPUHP_AP_MM_DEMOTION_ONLINE,
 	CPUHP_AP_X86_HPET_ONLINE,
-- 
2.25.1