Commit da92df49 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Thomas Gleixner
Browse files

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: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/41cd78af-92a3-4f23-8c7a-4316a04a66d8@p183
parent effe6d27

kernel/cpu.c

+2 −2
Original line number Diff line number Diff line
@@ -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);