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| author |   John Ogness <john.ogness@linutronix.de> | 2024-02-07 14:46:55 +0106 |
|---|---|---|
| committer |   Petr Mladek <pmladek@suse.com> | 2024-02-07 17:23:18 +0100 |
| commit | 0ab7cdd00491b532591ef065be706301de7e448f (patch) | |
| tree | 77e12dae04af2aa41e4b88feecb5c78086f1d5fc /kernel/printk | |
| parent | printk: ringbuffer: Clarify special lpos values (diff) | |
| download | wireguard-linux-0ab7cdd00491b532591ef065be706301de7e448f.tar.xz wireguard-linux-0ab7cdd00491b532591ef065be706301de7e448f.zip | |
printk: For @suppress_panic_printk check for other CPU in panic
Currently @suppress_panic_printk is checked along with
non-matching @panic_cpu and current CPU. This works
because @suppress_panic_printk is only set when
panic_in_progress() is true.
Rather than relying on the @suppress_panic_printk semantics,
use the concise helper function other_cpu_in_progress(). The
helper function exists to avoid open coding such tests.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240207134103.1357162-7-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'kernel/printk')
| -rw-r--r-- | kernel/printk/printk.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index be95a6851164..22bb45d8f2f2 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -2270,8 +2270,7 @@ asmlinkage int vprintk_emit(int facility, int level, if (unlikely(suppress_printk)) return 0; - if (unlikely(suppress_panic_printk) && - atomic_read(&panic_cpu) != raw_smp_processor_id()) + if (unlikely(suppress_panic_printk) && other_cpu_in_panic()) return 0; if (level == LOGLEVEL_SCHED) { |