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-rw-r--r--sys/kern/kern_mutex.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c
index 041b480..7666116 100644
--- a/sys/kern/kern_mutex.c
+++ b/sys/kern/kern_mutex.c
@@ -85,14 +85,15 @@ __FBSDID("$FreeBSD$");
#define mtx_owner(m) ((struct thread *)((m)->mtx_lock & ~MTX_FLAGMASK))
-static void assert_mtx(struct lock_object *lock, int what);
+static void assert_mtx(const struct lock_object *lock, int what);
#ifdef DDB
-static void db_show_mtx(struct lock_object *lock);
+static void db_show_mtx(const struct lock_object *lock);
#endif
static void lock_mtx(struct lock_object *lock, int how);
static void lock_spin(struct lock_object *lock, int how);
#ifdef KDTRACE_HOOKS
-static int owner_mtx(struct lock_object *lock, struct thread **owner);
+static int owner_mtx(const struct lock_object *lock,
+ struct thread **owner);
#endif
static int unlock_mtx(struct lock_object *lock);
static int unlock_spin(struct lock_object *lock);
@@ -134,10 +135,10 @@ struct mtx blocked_lock;
struct mtx Giant;
void
-assert_mtx(struct lock_object *lock, int what)
+assert_mtx(const struct lock_object *lock, int what)
{
- mtx_assert((struct mtx *)lock, what);
+ mtx_assert((const struct mtx *)lock, what);
}
void
@@ -174,9 +175,9 @@ unlock_spin(struct lock_object *lock)
#ifdef KDTRACE_HOOKS
int
-owner_mtx(struct lock_object *lock, struct thread **owner)
+owner_mtx(const struct lock_object *lock, struct thread **owner)
{
- struct mtx *m = (struct mtx *)lock;
+ const struct mtx *m = (const struct mtx *)lock;
*owner = mtx_owner(m);
return (mtx_unowned(m) == 0);
@@ -693,7 +694,7 @@ _mtx_unlock_sleep(struct mtx *m, int opts, const char *file, int line)
*/
#ifdef INVARIANT_SUPPORT
void
-_mtx_assert(struct mtx *m, int what, const char *file, int line)
+_mtx_assert(const struct mtx *m, int what, const char *file, int line)
{
if (panicstr != NULL || dumping)
@@ -871,12 +872,12 @@ mutex_init(void)
#ifdef DDB
void
-db_show_mtx(struct lock_object *lock)
+db_show_mtx(const struct lock_object *lock)
{
struct thread *td;
- struct mtx *m;
+ const struct mtx *m;
- m = (struct mtx *)lock;
+ m = (const struct mtx *)lock;
db_printf(" flags: {");
if (LOCK_CLASS(lock) == &lock_class_mtx_spin)
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