struct vm_area_struct *vm_area_alloc(struct mm_struct *);
struct vm_area_struct *vm_area_dup(struct vm_area_struct *);
void vm_area_free(struct vm_area_struct *);
+/* Use only if VMA has no other users */
+void __vm_area_free(struct vm_area_struct *vma);
#ifndef CONFIG_MMU
extern struct rb_root nommu_region_tree;
return new;
}
-static void __vm_area_free(struct vm_area_struct *vma)
+void __vm_area_free(struct vm_area_struct *vma)
{
free_anon_vma_name(vma);
kmem_cache_free(vm_area_cachep, vma);
/*
* Close a vm structure and free it.
*/
-static void remove_vma(struct vm_area_struct *vma)
+static void remove_vma(struct vm_area_struct *vma, bool unreachable)
{
might_sleep();
if (vma->vm_ops && vma->vm_ops->close)
if (vma->vm_file)
fput(vma->vm_file);
mpol_put(vma_policy(vma));
- vm_area_free(vma);
+ if (unreachable)
+ __vm_area_free(vma);
+ else
+ vm_area_free(vma);
}
static inline struct vm_area_struct *vma_prev_limit(struct vma_iterator *vmi,
if (vma->vm_flags & VM_ACCOUNT)
nr_accounted += nrpages;
vm_stat_account(mm, vma->vm_flags, -nrpages);
- remove_vma(vma);
+ remove_vma(vma, false);
}
vm_unacct_memory(nr_accounted);
validate_mm(mm);
do {
if (vma->vm_flags & VM_ACCOUNT)
nr_accounted += vma_pages(vma);
- remove_vma(vma);
+ remove_vma(vma, true);
count++;
cond_resched();
} while ((vma = mas_find(&mas, ULONG_MAX)) != NULL);