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Diffstat (limited to 'mm/mmap.c')
-rw-r--r--mm/mmap.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index 1f9e70242858..ccf377ee319f 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -860,13 +860,15 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
* area is returned, or the function will return NULL
*/
static struct vm_area_struct
-*vma_merge(struct vma_iterator *vmi, struct mm_struct *mm,
- struct vm_area_struct *prev, unsigned long addr, unsigned long end,
- unsigned long vm_flags, struct anon_vma *anon_vma, struct file *file,
- pgoff_t pgoff, struct mempolicy *policy,
+*vma_merge(struct vma_iterator *vmi, struct vm_area_struct *prev,
+ struct vm_area_struct *src, unsigned long addr, unsigned long end,
+ unsigned long vm_flags, pgoff_t pgoff, struct mempolicy *policy,
struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
struct anon_vma_name *anon_name)
{
+ struct mm_struct *mm = src->vm_mm;
+ struct anon_vma *anon_vma = src->anon_vma;
+ struct file *file = src->vm_file;
struct vm_area_struct *curr, *next, *res;
struct vm_area_struct *vma, *adjust, *remove, *remove2;
struct vm_area_struct *anon_dup = NULL;
@@ -2426,9 +2428,8 @@ struct vm_area_struct *vma_modify(struct vma_iterator *vmi,
pgoff_t pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
struct vm_area_struct *merged;
- merged = vma_merge(vmi, vma->vm_mm, prev, start, end, vm_flags,
- vma->anon_vma, vma->vm_file, pgoff, policy,
- uffd_ctx, anon_name);
+ merged = vma_merge(vmi, prev, vma, start, end, vm_flags,
+ pgoff, policy, uffd_ctx, anon_name);
if (merged)
return merged;
@@ -2458,9 +2459,8 @@ static struct vm_area_struct
struct vm_area_struct *vma, unsigned long start,
unsigned long end, pgoff_t pgoff)
{
- return vma_merge(vmi, vma->vm_mm, prev, start, end, vma->vm_flags,
- vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
- vma->vm_userfaultfd_ctx, anon_vma_name(vma));
+ return vma_merge(vmi, prev, vma, start, end, vma->vm_flags, pgoff,
+ vma_policy(vma), vma->vm_userfaultfd_ctx, anon_vma_name(vma));
}
/*
@@ -2474,10 +2474,9 @@ struct vm_area_struct *vma_merge_extend(struct vma_iterator *vmi,
pgoff_t pgoff = vma->vm_pgoff + vma_pages(vma);
/* vma is specified as prev, so case 1 or 2 will apply. */
- return vma_merge(vmi, vma->vm_mm, vma, vma->vm_end, vma->vm_end + delta,
- vma->vm_flags, vma->anon_vma, vma->vm_file, pgoff,
- vma_policy(vma), vma->vm_userfaultfd_ctx,
- anon_vma_name(vma));
+ return vma_merge(vmi, vma, vma, vma->vm_end, vma->vm_end + delta,
+ vma->vm_flags, pgoff, vma_policy(vma),
+ vma->vm_userfaultfd_ctx, anon_vma_name(vma));
}
/*