aboutsummaryrefslogtreecommitdiffstats
path: root/fs/partitions/devfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/partitions/devfs.c')
-rw-r--r--fs/partitions/devfs.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/partitions/devfs.c b/fs/partitions/devfs.c
index 87f5044..3f0a780 100644
--- a/fs/partitions/devfs.c
+++ b/fs/partitions/devfs.c
@@ -6,7 +6,7 @@
#include <linux/vmalloc.h>
#include <linux/genhd.h>
#include <linux/bitops.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
struct unique_numspace {
@@ -16,7 +16,7 @@ struct unique_numspace {
struct semaphore mutex;
};
-static DECLARE_MUTEX(numspace_mutex);
+static DEFINE_MUTEX(numspace_mutex);
static int expand_numspace(struct unique_numspace *s)
{
@@ -48,7 +48,7 @@ static int alloc_unique_number(struct unique_numspace *s)
{
int rval = 0;
- down(&numspace_mutex);
+ mutex_lock(&numspace_mutex);
if (s->num_free < 1)
rval = expand_numspace(s);
if (!rval) {
@@ -56,7 +56,7 @@ static int alloc_unique_number(struct unique_numspace *s)
--s->num_free;
__set_bit(rval, s->bits);
}
- up(&numspace_mutex);
+ mutex_unlock(&numspace_mutex);
return rval;
}
@@ -66,11 +66,11 @@ static void dealloc_unique_number(struct unique_numspace *s, int number)
int old_val;
if (number >= 0) {
- down(&numspace_mutex);
+ mutex_lock(&numspace_mutex);
old_val = __test_and_clear_bit(number, s->bits);
if (old_val)
++s->num_free;
- up(&numspace_mutex);
+ mutex_unlock(&numspace_mutex);
}
}