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authorJérôme Glisse <jglisse@redhat.com>2018-12-28 11:38:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 23:11:50 +0300
commitac46d4f3c43241ffa23d5bf36153a0830c0e02cc (patch)
tree8fb9505fd38170afe5c9ba8ff0ed54bbe6caaf4d /mm/madvise.c
parent5d6527a784f7a6d247961e046e830de8d71b47d1 (diff)
downloadlinux-ac46d4f3c43241ffa23d5bf36153a0830c0e02cc.tar.xz
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 <jglisse@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Ross Zwisler <zwisler@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krcmar <rkrcmar@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Felix Kuehling <felix.kuehling@amd.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> From: Jérôme Glisse <jglisse@redhat.com> 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 <jglisse@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/madvise.c')
-rw-r--r--mm/madvise.c21
1 files changed, 11 insertions, 10 deletions
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;
}