The following commit has been merged into the smp/core branch of tip:
Commit-ID: da92df490eeab7a97a3390ff32e0ae091e0dc2eb
Gitweb: https://git.kernel.org/tip/da92df490eeab7a97a3390ff32e0ae091e0dc2eb
Author: Alexey Dobriyan <adobriyan@xxxxxxxxx>
AuthorDate: Mon, 05 Feb 2024 13:01:19 +03:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 19 Feb 2024 18:05:47 +01:00
cpu: Mark cpu_possible_mask as __ro_after_init
cpu_possible_mask is by definition "cpus which could be hotplugged without
reboot". It's a property which is fixed after kernel enumerates the
hardware configuration.
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/41cd78af-92a3-4f23-8c7a-4316a04a66d8@p183
---
kernel/cpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c
index ad7d0b0..7b36b3a 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -3106,10 +3106,10 @@ const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL;
EXPORT_SYMBOL(cpu_all_bits);
#ifdef CONFIG_INIT_ALL_POSSIBLE
-struct cpumask __cpu_possible_mask __read_mostly
+struct cpumask __cpu_possible_mask __ro_after_init;
= {CPU_BITS_ALL};
#else
-struct cpumask __cpu_possible_mask __read_mostly;
+struct cpumask __cpu_possible_mask __ro_after_init;
#endif
EXPORT_SYMBOL(__cpu_possible_mask);
|