mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 22:44:27 +08:00
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> |
||
---|---|---|
.. | ||
asm | ||
uapi/asm |