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This patch lays the groundwork for supporting batch PTE unmapping in try_to_unmap_one(). It introduces range handling for TLB batch flushing, with the range currently set to the size of PAGE_SIZE. The function __flush_tlb_range_nosync() is architecture-specific and is only used within arch/arm64. This function requires the mm structure instead of the vma structure. To allow its reuse by arch_tlbbatch_add_pending(), which operates with mm but not vma, this patch modifies the argument of __flush_tlb_range_nosync() to take mm as its parameter. Link: https://lkml.kernel.org/r/20250214093015.51024-3-21cnbao@gmail.com Signed-off-by: Barry Song <v-songbaohua@oppo.com> Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shaoqin Huang <shahuang@redhat.com> Cc: Gavin Shan <gshan@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Lance Yang <ioworker0@gmail.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Yosry Ahmed <yosryahmed@google.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Yicong Yang <yangyicong@hisilicon.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Chis Li <chrisl@kernel.org> Cc: "Huang, Ying" <ying.huang@intel.com> Cc: Kairui Song <kasong@tencent.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Mauricio Faria de Oliveira <mfo@canonical.com> Cc: Tangquan Zheng <zhengtangquan@oppo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>