mainline inclusion
from mainline-v6.0
commit e5a55401
category: feature
bugzilla: https://gitee.com/openeuler/open-source-summer/issues/I56FG1?from=project-issue
CVE: N/A

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e5a554014618308f046af99ab9c950165ed6cb11

-------------------------------------------------
The pxx_user_accessible_page() checks the PTE bit, it's
architecture-specific code, move them into x86's pgtable.h.

These helpers are being moved out to make the page table check framework
platform independent.

Link: https://lkml.kernel.org/r/20220507110114.4128854-3-tongtiangen@huawei.comSigned-off-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NTong Tiangen <tongtiangen@huawei.com>
Acked-by: NPasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: NAnshuman Khandual <anshuman.khandual@arm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
(cherry picked from commit e5a55401)
Signed-off-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZeng Zhimin <im_zzm@126.com>