#include <linux/miscdevice.h>
#include <linux/bootmem.h>
#include <linux/export.h>
+#include <linux/refcount.h>
#include <asm/cpudata.h>
#include <asm/hypervisor.h>
struct list_head list;
struct mdesc_mem_ops *mops;
void *self_base;
- atomic_t refcnt;
+ refcount_t refcnt;
unsigned int handle_size;
struct mdesc_hdr mdesc;
};
memset(hp, 0, handle_size);
INIT_LIST_HEAD(&hp->list);
hp->self_base = base;
- atomic_set(&hp->refcnt, 1);
+ refcount_set(&hp->refcnt, 1);
hp->handle_size = handle_size;
}
unsigned int alloc_size;
unsigned long start;
- BUG_ON(atomic_read(&hp->refcnt) != 0);
+ BUG_ON(refcount_read(&hp->refcnt) != 0);
BUG_ON(!list_empty(&hp->list));
alloc_size = PAGE_ALIGN(hp->handle_size);
static void mdesc_kfree(struct mdesc_handle *hp)
{
- BUG_ON(atomic_read(&hp->refcnt) != 0);
+ BUG_ON(refcount_read(&hp->refcnt) != 0);
BUG_ON(!list_empty(&hp->list));
kfree(hp->self_base);
spin_lock_irqsave(&mdesc_lock, flags);
hp = cur_mdesc;
if (hp)
- atomic_inc(&hp->refcnt);
+ refcount_inc(&hp->refcnt);
spin_unlock_irqrestore(&mdesc_lock, flags);
return hp;
unsigned long flags;
spin_lock_irqsave(&mdesc_lock, flags);
- if (atomic_dec_and_test(&hp->refcnt)) {
+ if (refcount_dec_and_test(&hp->refcnt)) {
list_del_init(&hp->list);
hp->mops->free(hp);
}
if (status != HV_EOK || real_len > len) {
printk(KERN_ERR "MD: mdesc reread fails with %lu\n",
status);
- atomic_dec(&hp->refcnt);
+ refcount_dec(&hp->refcnt);
mdesc_free(hp);
goto out;
}
mdesc_notify_clients(orig_hp, hp);
spin_lock_irqsave(&mdesc_lock, flags);
- if (atomic_dec_and_test(&orig_hp->refcnt))
+ if (refcount_dec_and_test(&orig_hp->refcnt))
mdesc_free(orig_hp);
else
list_add(&orig_hp->list, &mdesc_zombie_list);