[patch V2 15/26] timekeeping: Add AUX offset to struct timekeeper
From: Thomas Gleixner <hidden>
Date: 2025-05-19 08:33:34
Also in:
lkml
This offset will be used in the time getters of auxiliary clocks. It is added to the "monotonic" clock readout. As auxiliary clocks do not utilize the offset fields of the core time keeper, this is just an alias for offs_tai, so that the cache line layout stays the same. Signed-off-by: Thomas Gleixner <redacted> --- include/linux/timekeeper_internal.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) ---
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h@@ -67,6 +67,7 @@ struct tk_read_base { * @offs_real: Offset clock monotonic -> clock realtime * @offs_boot: Offset clock monotonic -> clock boottime * @offs_tai: Offset clock monotonic -> clock tai + * @offs_aux: Offset clock monotonic -> clock AUX * @coarse_nsec: The nanoseconds part for coarse time getters * @id: The timekeeper ID * @tkr_raw: The readout base structure for CLOCK_MONOTONIC_RAW
@@ -139,7 +140,10 @@ struct timekeeper { struct timespec64 wall_to_monotonic; ktime_t offs_real; ktime_t offs_boot; - ktime_t offs_tai; + union { + ktime_t offs_tai; + ktime_t offs_aux; + }; u32 coarse_nsec; enum timekeeper_ids id;