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Diffstat (limited to 'arch/sparc/kernel/mdesc.c')
-rw-r--r--arch/sparc/kernel/mdesc.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 1ef6156b1530..418592a09b41 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -13,6 +13,7 @@
#include <linux/miscdevice.h>
#include <linux/bootmem.h>
#include <linux/export.h>
+#include <linux/refcount.h>
#include <asm/cpudata.h>
#include <asm/hypervisor.h>
@@ -71,7 +72,7 @@ struct mdesc_handle {
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;
};
@@ -153,7 +154,7 @@ static void mdesc_handle_init(struct mdesc_handle *hp,
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;
}
@@ -183,7 +184,7 @@ static void __init mdesc_memblock_free(struct mdesc_handle *hp)
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);
@@ -221,7 +222,7 @@ static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_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);
@@ -260,7 +261,7 @@ struct mdesc_handle *mdesc_grab(void)
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;
@@ -272,7 +273,7 @@ void mdesc_release(struct mdesc_handle *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);
}
@@ -514,7 +515,7 @@ void mdesc_update(void)
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;
}
@@ -527,7 +528,7 @@ void mdesc_update(void)
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);