diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2013-10-12 02:39:25 +0200 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-11-06 08:48:43 +0100 |
| commit | d63285e94af3ade4fa8b10b0d9a22bcf72baf2f9 (patch) | |
| tree | ea3eba620830c9eb954875e1153fc2e453b9464c /arch/x86/include/asm/pvclock.h | |
| parent | kvm: optimize out smp_mb after srcu_read_unlock (diff) | |
| download | linux-d63285e94af3ade4fa8b10b0d9a22bcf72baf2f9.tar.xz linux-d63285e94af3ade4fa8b10b0d9a22bcf72baf2f9.zip | |
pvclock: detect watchdog reset at pvclock read
Implement reset of kernel watchdogs at pvclock read time. This avoids
adding special code to every watchdog.
This is possible for watchdogs which measure time based on sched_clock() or
ktime_get() variants.
Suggested by Don Zickus.
Acked-by: Don Zickus <dzickus@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/pvclock.h')
| -rw-r--r-- | arch/x86/include/asm/pvclock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h index be8269b00e2a..d6b078e9fa28 100644 --- a/arch/x86/include/asm/pvclock.h +++ b/arch/x86/include/asm/pvclock.h @@ -14,6 +14,8 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall, struct timespec *ts); void pvclock_resume(void); +void pvclock_touch_watchdogs(void); + /* * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction, * yielding a 64-bit result. |