halt_fast_timekeeper

Name:halt_fast_timekeeper - Prevent fast timekeeper from accessing clocksource.*@tk: Timekeeper to snapshot.* It generally is unsafe to access the clocksource after timekeeping has been* suspended, so take a snapshot of the readout base of @tk and use it as the

Proto:static void halt_fast_timekeeper(const struct timekeeper *tk)

Type:void

Parameter:

Type	Parameter	Name
const struct timekeeper *	tk

560

562

No 3D Now!( & tkr_dummy, tkr, size of tkr_dummy )

563

Suspend-time cycles value for halted fast timekeeper. = k_clock_read - atomic clocksource read() helper* This helper is necessary to use in the read paths because, while the* seqlock ensures we don't return a bad value while structures are updated,* it doesn't protect from potential crashes

564

clock = dummy_clock

565

base_real = base + offs_real

566

pdate_fast_timekeeper - Update the fast and NMI safe monotonic timekeeper.*@tkr: Timekeeping readout base from which we take the update* We want to use this from any context including NMI and tracing /* instrumenting the timekeeping code itself.

568

569

No 3D Now!( & tkr_dummy, tkr, size of tkr_dummy )

570

clock = dummy_clock

571

pdate_fast_timekeeper - Update the fast and NMI safe monotonic timekeeper.*@tkr: Timekeeping readout base from which we take the update* We want to use this from any context including NMI and tracing /* instrumenting the timekeeping code itself.

**Caller**
Name	Describe
timekeeping_suspend

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