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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2019-07-26 20:30:55 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-08-01 20:51:20 +0200 |
| commit | 2c0d278f3293fc59da0d183075415ca1e8c93b40 (patch) | |
| tree | 214f5bb35b62a158046d3a7efd8636d96c9b90a5 /kernel/time/tick-sched.c | |
| parent | d2ab4cf4943576fb060b8a69341d9e0c2a952ba7 (diff) | |
| download | linux-2c0d278f3293fc59da0d183075415ca1e8c93b40.tar.gz linux-2c0d278f3293fc59da0d183075415ca1e8c93b40.tar.bz2 linux-2c0d278f3293fc59da0d183075415ca1e8c93b40.zip | |
KVM: LAPIC: Mark hrtimer to expire in hard interrupt context
On PREEMPT_RT enabled kernels unmarked hrtimers are moved into soft
interrupt expiry mode by default.
While that's not a functional requirement for the KVM local APIC timer
emulation, it's a latency issue which can be avoided by marking the timer
so hard interrupt context expiry is enforced.
No functional change.
[ tglx: Split out from larger combo patch. Add changelog. ]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190726185753.363363474@linutronix.de
Diffstat (limited to 'kernel/time/tick-sched.c')
0 files changed, 0 insertions, 0 deletions