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| author | Peter Zijlstra <peterz@infradead.org> | 2023-01-26 18:08:36 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-01-31 17:01:47 +0300 |
| commit | 8739c6811572b087decd561f96382087402cc343 (patch) | |
| tree | 60330c4df92998fd1994afa131ebab2b24ca67b2 /arch/x86/include/asm/kvmclock.h | |
| parent | 5c9da9fe826d4a0d84bb322cca27cc8ad8d23b24 (diff) | |
| download | linux-8739c6811572b087decd561f96382087402cc343.tar.xz | |
sched/clock/x86: Mark sched_clock() noinstr
In order to use sched_clock() from noinstr code, mark it and all it's
implenentations noinstr.
The whole pvclock thing (used by KVM/Xen) is a bit of a pain,
since it calls out to watchdogs, create a
pvclock_clocksource_read_nowd() variant doesn't do that and can be
noinstr.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230126151323.702003578@infradead.org
Diffstat (limited to 'arch/x86/include/asm/kvmclock.h')
| -rw-r--r-- | arch/x86/include/asm/kvmclock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/kvmclock.h b/arch/x86/include/asm/kvmclock.h index 6c5765192102..511b35069187 100644 --- a/arch/x86/include/asm/kvmclock.h +++ b/arch/x86/include/asm/kvmclock.h @@ -8,7 +8,7 @@ extern struct clocksource kvm_clock; DECLARE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu); -static inline struct pvclock_vcpu_time_info *this_cpu_pvti(void) +static __always_inline struct pvclock_vcpu_time_info *this_cpu_pvti(void) { return &this_cpu_read(hv_clock_per_cpu)->pvti; } |