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Diffstat (limited to 'kernel/locking/lockdep.c')
-rw-r--r--kernel/locking/lockdep.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 2288aa2fa4c6..5e149dd78298 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -1682,9 +1682,9 @@ check_redundant(struct lock_list *root, struct lock_class *target,
* without creating any illegal irq-safe -> irq-unsafe lock dependency.
*/
-static inline int usage_match(struct lock_list *entry, void *bit)
+static inline int usage_match(struct lock_list *entry, void *mask)
{
- return entry->class->usage_mask & (1 << (enum lock_usage_bit)bit);
+ return entry->class->usage_mask & *(unsigned long *)mask;
}
@@ -1700,14 +1700,14 @@ static inline int usage_match(struct lock_list *entry, void *bit)
* Return <0 on error.
*/
static int
-find_usage_forwards(struct lock_list *root, enum lock_usage_bit bit,
+find_usage_forwards(struct lock_list *root, unsigned long usage_mask,
struct lock_list **target_entry)
{
int result;
debug_atomic_inc(nr_find_usage_forwards_checks);
- result = __bfs_forwards(root, (void *)bit, usage_match, target_entry);
+ result = __bfs_forwards(root, &usage_mask, usage_match, target_entry);
return result;
}
@@ -1723,14 +1723,14 @@ find_usage_forwards(struct lock_list *root, enum lock_usage_bit bit,
* Return <0 on error.
*/
static int
-find_usage_backwards(struct lock_list *root, enum lock_usage_bit bit,
+find_usage_backwards(struct lock_list *root, unsigned long usage_mask,
struct lock_list **target_entry)
{
int result;
debug_atomic_inc(nr_find_usage_backwards_checks);
- result = __bfs_backwards(root, (void *)bit, usage_match, target_entry);
+ result = __bfs_backwards(root, &usage_mask, usage_match, target_entry);
return result;
}
@@ -1935,7 +1935,7 @@ check_usage(struct task_struct *curr, struct held_lock *prev,
this.parent = NULL;
this.class = hlock_class(prev);
- ret = find_usage_backwards(&this, bit_backwards, &target_entry);
+ ret = find_usage_backwards(&this, lock_flag(bit_backwards), &target_entry);
if (ret < 0)
return print_bfs_bug(ret);
if (ret == 1)
@@ -1943,7 +1943,7 @@ check_usage(struct task_struct *curr, struct held_lock *prev,
that.parent = NULL;
that.class = hlock_class(next);
- ret = find_usage_forwards(&that, bit_forwards, &target_entry1);
+ ret = find_usage_forwards(&that, lock_flag(bit_forwards), &target_entry1);
if (ret < 0)
return print_bfs_bug(ret);
if (ret == 1)
@@ -2941,7 +2941,7 @@ check_usage_forwards(struct task_struct *curr, struct held_lock *this,
root.parent = NULL;
root.class = hlock_class(this);
- ret = find_usage_forwards(&root, bit, &target_entry);
+ ret = find_usage_forwards(&root, lock_flag(bit), &target_entry);
if (ret < 0)
return print_bfs_bug(ret);
if (ret == 1)
@@ -2965,7 +2965,7 @@ check_usage_backwards(struct task_struct *curr, struct held_lock *this,
root.parent = NULL;
root.class = hlock_class(this);
- ret = find_usage_backwards(&root, bit, &target_entry);
+ ret = find_usage_backwards(&root, lock_flag(bit), &target_entry);
if (ret < 0)
return print_bfs_bug(ret);
if (ret == 1)