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tlb: mmu_gather: Remove start/end arguments from tlb_gather_mmu()

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The 'start' and 'end' arguments to tlb_gather_mmu() are no longer
needed now that there is a separate function for 'fullmm' flushing.

Remove the unused arguments and update all callers.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Yu Zhao <yuzhao@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/CAHk-=wjQWa14_4UpfDf=fiineNP+RH74kZeDMo_f1D35xNzq9w@mail.gmail.com
This commit is contained in:
Will Deacon
2021-01-27 23:53:45 +00:00
committed by Peter Zijlstra
parent d8b450530b
commit a72afd8730
10 changed files with 20 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
mm/hugetlb.c
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@@ -3967,23 +3967,9 @@ void __unmap_hugepage_range_final(struct mmu_gather *tlb,
void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end, struct page *ref_page)
{
struct mm_struct *mm;
struct mmu_gather tlb;
unsigned long tlb_start = start;
unsigned long tlb_end = end;
/*
* If shared PMDs were possibly used within this vma range, adjust
* start/end for worst case tlb flushing.
* Note that we can not be sure if PMDs are shared until we try to
* unmap pages. However, we want to make sure TLB flushing covers
* the largest possible range.
*/
adjust_range_if_pmd_sharing_possible(vma, &tlb_start, &tlb_end);
mm = vma->vm_mm;
tlb_gather_mmu(&tlb, mm, tlb_start, tlb_end);
tlb_gather_mmu(&tlb, vma->vm_mm);
__unmap_hugepage_range(&tlb, vma, start, end, ref_page);
tlb_finish_mmu(&tlb);
}