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authorHugh Dickins <hugh@veritas.com>2005-04-19 13:29:18 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org.(none)>2005-04-19 13:29:18 -0700
commit146425a316fb937fbdcac018b34a23c67d12214b (patch)
tree3246589ae0fa8f4c334247222792a9e6339b4ccc /mm
parent8f6c99c11ae63ce887686f3e51c412cc4d8d8a7d (diff)
[PATCH] freepgt: mpnt to vma cleanup
While dabbling here in mmap.c, clean up mysterious "mpnt"s to "vma"s. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/mmap.c35
1 files changed, 17 insertions, 18 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index f8c61b2385ff..0fa87a5ae2cc 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1602,14 +1602,13 @@ static void unmap_vma(struct mm_struct *mm, struct vm_area_struct *area)
* Ok - we have the memory areas we should free on the 'free' list,
* so release them, and do the vma updates.
*/
-static void unmap_vma_list(struct mm_struct *mm,
- struct vm_area_struct *mpnt)
+static void unmap_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
{
do {
- struct vm_area_struct *next = mpnt->vm_next;
- unmap_vma(mm, mpnt);
- mpnt = next;
- } while (mpnt != NULL);
+ struct vm_area_struct *next = vma->vm_next;
+ unmap_vma(mm, vma);
+ vma = next;
+ } while (vma);
validate_mm(mm);
}
@@ -1720,7 +1719,7 @@ int split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
{
unsigned long end;
- struct vm_area_struct *mpnt, *prev, *last;
+ struct vm_area_struct *vma, *prev, *last;
if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
return -EINVAL;
@@ -1729,14 +1728,14 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
return -EINVAL;
/* Find the first overlapping VMA */
- mpnt = find_vma_prev(mm, start, &prev);
- if (!mpnt)
+ vma = find_vma_prev(mm, start, &prev);
+ if (!vma)
return 0;
- /* we have start < mpnt->vm_end */
+ /* we have start < vma->vm_end */
/* if it doesn't overlap, we have nothing.. */
end = start + len;
- if (mpnt->vm_start >= end)
+ if (vma->vm_start >= end)
return 0;
/*
@@ -1746,11 +1745,11 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
* unmapped vm_area_struct will remain in use: so lower split_vma
* places tmp vma above, and higher split_vma places tmp vma below.
*/
- if (start > mpnt->vm_start) {
- int error = split_vma(mm, mpnt, start, 0);
+ if (start > vma->vm_start) {
+ int error = split_vma(mm, vma, start, 0);
if (error)
return error;
- prev = mpnt;
+ prev = vma;
}
/* Does it split the last one? */
@@ -1760,16 +1759,16 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
if (error)
return error;
}
- mpnt = prev? prev->vm_next: mm->mmap;
+ vma = prev? prev->vm_next: mm->mmap;
/*
* Remove the vma's, and unmap the actual pages
*/
- detach_vmas_to_be_unmapped(mm, mpnt, prev, end);
- unmap_region(mm, mpnt, prev, start, end);
+ detach_vmas_to_be_unmapped(mm, vma, prev, end);
+ unmap_region(mm, vma, prev, start, end);
/* Fix up all other VM information */
- unmap_vma_list(mm, mpnt);
+ unmap_vma_list(mm, vma);
return 0;
}

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