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From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>,
	Frederic Weisbecker <frederic@kernel.org>,
	Waiman Long <longman@redhat.com>
Subject: [GIT PULL] timer subsystem fix
Date: Sun, 7 Sep 2025 12:35:52 +0200	[thread overview]
Message-ID: <aL1gCBN1MlhGPAja@gmail.com> (raw)

Linus,

Please pull the latest timers/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-2025-09-07

   # HEAD: 762af5a2aa0ad18da1316666dae30d369268d44c vdso/vsyscall: Avoid slow division loop in auxiliary clock update

Fix a severe slowdown regression in the timer vDSO code related
to the while() loop in __iter_div_u64_rem(), when the AUX-clock
is enabled.

 Thanks,

	Ingo

------------------>
Thomas Weißschuh (1):
      vdso/vsyscall: Avoid slow division loop in auxiliary clock update


 include/linux/timekeeper_internal.h |  9 ++++++++-
 kernel/time/timekeeping.c           | 10 ++++++++--
 kernel/time/vsyscall.c              |  4 ++--
 3 files changed, 18 insertions(+), 5 deletions(-)

             reply	other threads:[~2025-09-07 10:35 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-07 10:35 Ingo Molnar [this message]
2025-09-07 15:32 ` [GIT PULL] timer subsystem fix pr-tracker-bot
  -- strict thread matches above, loose matches on Subject: below --
2025-09-14  9:34 Ingo Molnar
2025-09-14 15:43 ` pr-tracker-bot
2025-11-15  9:13 Ingo Molnar
2025-11-15 18:26 ` pr-tracker-bot
2026-01-18 10:05 Ingo Molnar
2026-01-19 13:54 ` pr-tracker-bot
2026-03-08  0:49 Ingo Molnar
2026-03-08  1:23 ` pr-tracker-bot
2026-03-15  3:30 Ingo Molnar
2026-03-15 18:47 ` pr-tracker-bot
2026-03-29  5:27 Ingo Molnar
2026-03-29 17:29 ` pr-tracker-bot
2026-04-20  7:39 Ingo Molnar
2026-04-20 23:31 ` pr-tracker-bot
2026-05-09  2:01 Ingo Molnar
2026-05-09  3:32 ` pr-tracker-bot
2026-05-17  6:39 Ingo Molnar
2026-05-17 19:28 ` pr-tracker-bot

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