dlan17/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

timekeeping: Add clock_valid flag to timekeeper

Browse Source 
In preparation for supporting independent auxiliary timekeepers, add a
clock valid field and set it to true for the system timekeeper.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20250519083026.287145536@linutronix.de
This commit is contained in:
Thomas Gleixner
2025-06-19 14:28:23 +02:00
parent 8c782acd3f
commit 6168024604
2 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/time/timekeeping.c
+3 -2
View File
@@ -1665,11 +1665,12 @@ read_persistent_wall_and_boot_offset(struct timespec64 *wall_time,
*boot_offset = ns_to_timespec64(local_clock());
}
static __init void tkd_basic_setup(struct tk_data *tkd, enum timekeeper_ids tk_id)
static __init void tkd_basic_setup(struct tk_data *tkd, enum timekeeper_ids tk_id, bool valid)
{
raw_spin_lock_init(&tkd->lock);
seqcount_raw_spinlock_init(&tkd->seq, &tkd->lock);
tkd->timekeeper.id = tkd->shadow_timekeeper.id = tk_id;
tkd->timekeeper.clock_valid = tkd->shadow_timekeeper.clock_valid = valid;
}
/*
@@ -1699,7 +1700,7 @@ void __init timekeeping_init(void)
struct timekeeper *tks = &tk_core.shadow_timekeeper;
struct clocksource *clock;
tkd_basic_setup(&tk_core, TIMEKEEPER_CORE);
tkd_basic_setup(&tk_core, TIMEKEEPER_CORE, true);
read_persistent_wall_and_boot_offset(&wall_time, &boot_offset);
if (timespec64_valid_settod(&wall_time) &&