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-rw-r--r--mm/mmap.c36
1 files changed, 12 insertions, 24 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index e178026..eeefe19 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -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;
}
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