};
static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
-static void __vunmap(const void *, int);
-
-static void free_work(struct work_struct *w)
-{
- struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
- struct llist_node *t, *llnode;
-
- llist_for_each_safe(llnode, t, llist_del_all(&p->list))
- __vunmap((void *)llnode, 1);
-}
-
/*** Page table manipulation functions ***/
static int vmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
phys_addr_t phys_addr, pgprot_t prot,
}
}
-void __init vmalloc_init(void)
-{
- struct vmap_area *va;
- struct vm_struct *tmp;
- int i;
-
- /*
- * Create the cache for vmap_area objects.
- */
- vmap_area_cachep = KMEM_CACHE(vmap_area, SLAB_PANIC);
-
- for_each_possible_cpu(i) {
- struct vmap_block_queue *vbq;
- struct vfree_deferred *p;
-
- vbq = &per_cpu(vmap_block_queue, i);
- spin_lock_init(&vbq->lock);
- INIT_LIST_HEAD(&vbq->free);
- p = &per_cpu(vfree_deferred, i);
- init_llist_head(&p->list);
- INIT_WORK(&p->wq, free_work);
- }
-
- /* Import existing vmlist entries. */
- for (tmp = vmlist; tmp; tmp = tmp->next) {
- va = kmem_cache_zalloc(vmap_area_cachep, GFP_NOWAIT);
- if (WARN_ON_ONCE(!va))
- continue;
-
- va->va_start = (unsigned long)tmp->addr;
- va->va_end = va->va_start + tmp->size;
- va->vm = tmp;
- insert_vmap_area(va, &vmap_area_root, &vmap_area_list);
- }
-
- /*
- * Now we can initialize a free vmap space.
- */
- vmap_init_free_space();
- vmap_initialized = true;
-}
-
static inline void setup_vmalloc_vm_locked(struct vm_struct *vm,
struct vmap_area *va, unsigned long flags, const void *caller)
{
kfree(area);
}
+static void delayed_vfree_work(struct work_struct *w)
+{
+ struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
+ struct llist_node *t, *llnode;
+
+ llist_for_each_safe(llnode, t, llist_del_all(&p->list))
+ __vunmap((void *)llnode, 1);
+}
+
/**
* vfree_atomic - release memory allocated by vmalloc()
* @addr: memory base address
module_init(proc_vmalloc_init);
#endif
+
+void __init vmalloc_init(void)
+{
+ struct vmap_area *va;
+ struct vm_struct *tmp;
+ int i;
+
+ /*
+ * Create the cache for vmap_area objects.
+ */
+ vmap_area_cachep = KMEM_CACHE(vmap_area, SLAB_PANIC);
+
+ for_each_possible_cpu(i) {
+ struct vmap_block_queue *vbq;
+ struct vfree_deferred *p;
+
+ vbq = &per_cpu(vmap_block_queue, i);
+ spin_lock_init(&vbq->lock);
+ INIT_LIST_HEAD(&vbq->free);
+ p = &per_cpu(vfree_deferred, i);
+ init_llist_head(&p->list);
+ INIT_WORK(&p->wq, delayed_vfree_work);
+ }
+
+ /* Import existing vmlist entries. */
+ for (tmp = vmlist; tmp; tmp = tmp->next) {
+ va = kmem_cache_zalloc(vmap_area_cachep, GFP_NOWAIT);
+ if (WARN_ON_ONCE(!va))
+ continue;
+
+ va->va_start = (unsigned long)tmp->addr;
+ va->va_end = va->va_start + tmp->size;
+ va->vm = tmp;
+ insert_vmap_area(va, &vmap_area_root, &vmap_area_list);
+ }
+
+ /*
+ * Now we can initialize a free vmap space.
+ */
+ vmap_init_free_space();
+ vmap_initialized = true;
+}