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[PATCH] mm: remove_vma_list consolidation 

unmap_vma doesn't amount to much, let's put it inside unmap_vma_list.  Except
it doesn't unmap anything, unmap_region just did the unmapping: rename it to
remove_vma_list.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hugh Dickins 2005-10-29 18:15:56 -07:00 committed by Linus Torvalds
parent ab50b8ed81
commit 2c0b381467
1 changed files with 12 additions and 24 deletions
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36
mm/mmap.c
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@ -1603,35 +1603,23 @@ find_extend_vma(struct mm_struct * mm, unsigned long addr)
}
#endif
/* Normal function to fix up a mapping
* This function is the default for when an area has no specific
* function. This may be used as part of a more specific routine.
*
* By the time this function is called, the area struct has been
* removed from the process mapping list.
*/
static void unmap_vma(struct mm_struct *mm, struct vm_area_struct *vma)
{
long nrpages = vma_pages(vma);
mm->total_vm -= nrpages;
if (vma->vm_flags & VM_LOCKED)
mm->locked_vm -= nrpages;
vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
remove_vm_struct(vma);
}
/*
* Update the VMA and inode share lists.
*
* Ok - we have the memory areas we should free on the 'free' list,
* Ok - we have the memory areas we should free on the vma list,
* so release them, and do the vma updates.
*
* Called with the mm semaphore held.
*/
static void unmap_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
{
do {
struct vm_area_struct *next = vma->vm_next;
unmap_vma(mm, vma);
long nrpages = vma_pages(vma);
mm->total_vm -= nrpages;
if (vma->vm_flags & VM_LOCKED)
mm->locked_vm -= nrpages;
vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
remove_vm_struct(vma);
vma = next;
} while (vma);
validate_mm(mm);
@ -1799,7 +1787,7 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
unmap_region(mm, vma, prev, start, end);
/* Fix up all other VM information */
unmap_vma_list(mm, vma);
remove_vma_list(mm, vma);
return 0;
}