From: "Thomas Weißschuh (Schneider Electric)" <thomas.weissschuh@linutronix.de>
To: John Stultz <jstultz@google.com>,
Thomas Gleixner <tglx@kernel.org>,
Stephen Boyd <sboyd@kernel.org>,
Miroslav Lichvar <mlichvar@redhat.com>
Cc: linux-kernel@vger.kernel.org,
"Thomas Weißschuh (Schneider Electric)"
<thomas.weissschuh@linutronix.de>
Subject: [PATCH v2 2/4] timekeeping: Use timekeeper_is_core_tk() in timekeeping_update_on_shadow()
Date: Tue, 08 Sep 2026 08:17:32 +0200 [thread overview]
Message-ID: <20260908-timekeeping-conditionals-v2-2-5ebc3e7e1da0@linutronix.de> (raw)
In-Reply-To: <20260908-timekeeping-conditionals-v2-0-5ebc3e7e1da0@linutronix.de>
If CONFIG_POSIX_AUX_CLOCKS is disabled, the timekeeper is known to be
the core timekeeper.
Use the helper to avoid the conditional at runtime in this case.
Signed-off-by: Thomas Weißschuh (Schneider Electric) <thomas.weissschuh@linutronix.de>
---
kernel/time/timekeeping.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 2249d7fb3cb6..12bd61e9b5de 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -842,7 +842,7 @@ static void timekeeping_update_from_shadow(struct tk_data *tkd, unsigned int act
tk_update_ktime_data(tk);
tk->tkr_mono.base_real = tk->tkr_mono.base + tk->offs_real;
- if (tk->id == TIMEKEEPER_CORE) {
+ if (timekeeper_is_core_tk(tk)) {
tk_update_ns_to_cyc(tk, &tkd->timekeeper);
update_vsyscall(tk);
update_pvclock_gtod(tk, action & TK_CLOCK_WAS_SET);
--
2.55.0
next prev parent reply other threads:[~2026-09-08 6:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-08 6:17 [PATCH v2 0/4] timekeeping: Avoid some runtime conditionals around auxiliary clocks Thomas Weißschuh (Schneider Electric)
2026-09-08 6:17 ` [PATCH v2 1/4] timekeeping: Move timekeeper_is_core_tk() up in the file Thomas Weißschuh (Schneider Electric)
2026-09-08 6:17 ` Thomas Weißschuh (Schneider Electric) [this message]
2026-09-08 6:17 ` [PATCH v2 3/4] timekeeping: Remove tk_is_aux() and its usage Thomas Weißschuh (Schneider Electric)
2026-09-08 6:17 ` [PATCH v2 4/4] timekeeping: Introduce and use timekeeper_is_clock_valid() Thomas Weißschuh (Schneider Electric)
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