x86/mm/tlb: Privatize cpu_tlbstate
mainline inclusion from mainline-v5.13-rc1 commit 2f4305b1 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I3ZV2C CVE: NA ------------------------------------------------- cpu_tlbstate is mostly private and only the variable is_lazy is shared. This causes some false-sharing when TLB flushes are performed. Break cpu_tlbstate intro cpu_tlbstate and cpu_tlbstate_shared, and mark each one accordingly. Signed-off-by: NNadav Amit <namit@vmware.com> Signed-off-by: NIngo Molnar <mingo@kernel.org> Reviewed-by: NDave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/r/20210220231712.2475218-6-namit@vmware.comSigned-off-by: NTong Tiangen <tongtiangen@huawei.com> Reviewed-by: NChen Wandun <chenwandun@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Showing
想要评论请 注册 或 登录