Commit 78ba392c authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Petr Mladek
Browse files

printk: Mark __printk percpu data ready __ro_after_init 



This variable cannot change post boot.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarJohn Ogness <john.ogness@linutronix.de>
Reviewed-by: default avatarSergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220924000454.3319186-6-john.ogness@linutronix.de
parent eb4531b3

kernel/printk/printk.c

+1 −1
Original line number Diff line number Diff line
@@ -430,7 +430,7 @@ static struct printk_ringbuffer *prb = &printk_rb_static; 
 * per_cpu_areas are initialised. This variable is set to true when

 * it's safe to access per-CPU data.

 */

static bool __printk_percpu_data_ready __read_mostly;

static bool __printk_percpu_data_ready __ro_after_init;



bool printk_percpu_data_ready(void)

{