diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-05-19 10:33:16 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-06-19 14:28:22 +0200 |
| commit | 506a54a0316ee4854b0ed113a8001477f5211d50 (patch) | |
| tree | 2faaac849786e7499eda8d94c14923479abc4765 | |
| parent | 990518eb3a71c357ca4ff1ad3e747fb844d8094c (diff) | |
timekeeping: Cleanup kernel doc of __ktime_get_real_seconds()
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20250519083025.715836017@linutronix.de
| -rw-r--r-- | kernel/time/timekeeping.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 2ad78fbdc9ff..d88d19fb794c 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -975,9 +975,14 @@ time64_t ktime_get_real_seconds(void) EXPORT_SYMBOL_GPL(ktime_get_real_seconds); /** - * __ktime_get_real_seconds - The same as ktime_get_real_seconds - * but without the sequence counter protect. This internal function - * is called just when timekeeping lock is already held. + * __ktime_get_real_seconds - Unprotected access to CLOCK_REALTIME seconds + * + * The same as ktime_get_real_seconds() but without the sequence counter + * protection. This function is used in restricted contexts like the x86 MCE + * handler and in KGDB. It's unprotected on 32-bit vs. concurrent half + * completed modification and only to be used for such critical contexts. + * + * Returns: Racy snapshot of the CLOCK_REALTIME seconds value */ noinstr time64_t __ktime_get_real_seconds(void) { |