git: 689663d4654f - main - Initialize CLOCK_UPTIME for itmer events

From: Warner Losh <imp_at_FreeBSD.org>
Date: Fri, 16 Jan 2026 21:20:57 UTC
The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=689663d4654fd3a98a78c66ed99f7ed51164c771

commit 689663d4654fd3a98a78c66ed99f7ed51164c771
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2026-01-16 21:16:42 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2026-01-16 21:20:20 +0000

    Initialize CLOCK_UPTIME for itmer events
    
    Since we move to implement Linux's CLOCK_MONOTONIC with CLOCK_UPTIME, we
    broke the some timer support for Linux. Fix this by initializing
    CLOCK_UPTIME as a posix clock so we can use in that context.
    
    PR:                     292496
    MFC After:              5 days
    Fixes:                  108de784513d
    Sponsored by:           Netflix
    Reviewed by:            kib
    Differential Revision:  https://reviews.freebsd.org/D54746
---
 sys/kern/kern_time.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/kern/kern_time.c b/sys/kern/kern_time.c
index 5b7485c25cd7..0c16045ca610 100644
--- a/sys/kern/kern_time.c
+++ b/sys/kern/kern_time.c
@@ -1183,6 +1183,7 @@ itimer_start(void *dummy __unused)
 		NULL, NULL, itimer_init, itimer_fini, UMA_ALIGN_PTR, 0);
 	register_posix_clock(CLOCK_REALTIME,  &rt_clock);
 	register_posix_clock(CLOCK_MONOTONIC, &rt_clock);
+	register_posix_clock(CLOCK_UPTIME, &rt_clock);
 	register_posix_clock(CLOCK_TAI, &rt_clock);
 	p31b_setcfg(CTL_P1003_1B_TIMERS, 200112L);
 	p31b_setcfg(CTL_P1003_1B_DELAYTIMER_MAX, INT_MAX);