From ac46d4f3c43241ffa23d5bf36153a0830c0e02cc Mon Sep 17 00:00:00 2001 From: Jérôme Glisse Date: Fri, 28 Dec 2018 00:38:09 -0800 Subject: mm/mmu_notifier: use structure for invalidate_range_start/end calls v2 To avoid having to change many call sites everytime we want to add a parameter use a structure to group all parameters for the mmu_notifier invalidate_range_start/end cakks. No functional changes with this patch. [akpm@linux-foundation.org: coding style fixes] Link: http://lkml.kernel.org/r/20181205053628.3210-3-jglisse@redhat.com Signed-off-by: Jérôme Glisse Acked-by: Christian König Acked-by: Jan Kara Cc: Matthew Wilcox Cc: Ross Zwisler Cc: Dan Williams Cc: Paolo Bonzini Cc: Radim Krcmar Cc: Michal Hocko Cc: Felix Kuehling Cc: Ralph Campbell Cc: John Hubbard From: Jérôme Glisse Subject: mm/mmu_notifier: use structure for invalidate_range_start/end calls v3 fix build warning in migrate.c when CONFIG_MMU_NOTIFIER=n Link: http://lkml.kernel.org/r/20181213171330.8489-3-jglisse@redhat.com Signed-off-by: Jérôme Glisse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/madvise.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'mm/madvise.c') diff --git a/mm/madvise.c b/mm/madvise.c index 6cb1ca93e290..21a7881a2db4 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -458,29 +458,30 @@ static void madvise_free_page_range(struct mmu_gather *tlb, static int madvise_free_single_vma(struct vm_area_struct *vma, unsigned long start_addr, unsigned long end_addr) { - unsigned long start, end; struct mm_struct *mm = vma->vm_mm; + struct mmu_notifier_range range; struct mmu_gather tlb; /* MADV_FREE works for only anon vma at the moment */ if (!vma_is_anonymous(vma)) return -EINVAL; - start = max(vma->vm_start, start_addr); - if (start >= vma->vm_end) + range.start = max(vma->vm_start, start_addr); + if (range.start >= vma->vm_end) return -EINVAL; - end = min(vma->vm_end, end_addr); - if (end <= vma->vm_start) + range.end = min(vma->vm_end, end_addr); + if (range.end <= vma->vm_start) return -EINVAL; + mmu_notifier_range_init(&range, mm, range.start, range.end); lru_add_drain(); - tlb_gather_mmu(&tlb, mm, start, end); + tlb_gather_mmu(&tlb, mm, range.start, range.end); update_hiwater_rss(mm); - mmu_notifier_invalidate_range_start(mm, start, end); - madvise_free_page_range(&tlb, vma, start, end); - mmu_notifier_invalidate_range_end(mm, start, end); - tlb_finish_mmu(&tlb, start, end); + mmu_notifier_invalidate_range_start(&range); + madvise_free_page_range(&tlb, vma, range.start, range.end); + mmu_notifier_invalidate_range_end(&range); + tlb_finish_mmu(&tlb, range.start, range.end); return 0; } -- cgit v1.2.3-55-g7522