diff options
| author | Petr Mladek <pmladek@suse.com> | 2025-01-20 13:40:52 +0100 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2025-01-20 13:40:52 +0100 |
| commit | 4859bcd7a5bb2fda9660cb48ab41d9c5e4e1a6ec (patch) | |
| tree | b166ae154c8d853df917d26580f7732a813fabcd /kernel/printk/printk.c | |
| parent | 3d6f83df8ff2d5de84b50377e4f0d45e25311c7a (diff) | |
| parent | 0161e2d6950fe66cf6ac1c10d945bae971f33667 (diff) | |
Merge branch 'for-6.14-cpu_sync-fixup' into for-linus
Diffstat (limited to 'kernel/printk/printk.c')
| -rw-r--r-- | kernel/printk/printk.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index d8d82dd39dee..07668433644b 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -4922,6 +4922,11 @@ void console_try_replay_all(void) static atomic_t printk_cpu_sync_owner = ATOMIC_INIT(-1); static atomic_t printk_cpu_sync_nested = ATOMIC_INIT(0); +bool is_printk_cpu_sync_owner(void) +{ + return (atomic_read(&printk_cpu_sync_owner) == raw_smp_processor_id()); +} + /** * __printk_cpu_sync_wait() - Busy wait until the printk cpu-reentrant * spinning lock is not owned by any CPU. |