diff options
Diffstat (limited to 'kernel/locking/lockdep.c')
| -rw-r--r-- | kernel/locking/lockdep.c | 20 |
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) |