77ec462536
We can avoid the expensive ISB instruction after reading the counter in the vDSO gettime functions by creating a fake address hazard against a dummy stack read, just like we do inside the kernel. Signed-off-by: Will Deacon <will@kernel.org> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Link: https://lore.kernel.org/r/20210318170738.7756-5-will@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
|---|---|---|
| .. | ||
| clocksource.h | ||
| compat_barrier.h | ||
| compat_gettimeofday.h | ||
| gettimeofday.h | ||
| processor.h | ||
| vsyscall.h | ||