diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2023-02-01 13:53:07 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-02-06 16:38:30 -0800 |
| commit | 0051293c533017e2a860e0a0a33517bc40240fff (patch) | |
| tree | 54297a31350169661fd6f40446cf5f49025dd9bd /kernel/time | |
| parent | efc8b329c7fdc30921a7dfc109237523e1e5b1cc (diff) | |
clocksource: Enable TSC watchdog checking of HPET and PMTMR only when requested
Unconditionally enabling TSC watchdog checking of the HPET and PMTMR
clocksources can degrade latency and performance. Therefore, provide
a new "watchdog" option to the tsc= boot parameter that opts into such
checking. Note that tsc=watchdog is overridden by a tsc=nowatchdog
regardless of their relative positions in the list of boot parameters.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Waiman Long <longman@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Diffstat (limited to 'kernel/time')
0 files changed, 0 insertions, 0 deletions