提交 8bcb6c7d 编写于 作者: A Andi Kleen 提交者: Jens Axboe

block: use lockdep_assert_held for queue locking

Instead of an ugly open coded variant.

Cc: axboe@kernel.dk
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
上级 00380a40
......@@ -1218,7 +1218,7 @@ void blk_throtl_drain(struct request_queue *q)
struct bio_list bl;
struct bio *bio;
WARN_ON_ONCE(!queue_is_locked(q));
queue_lockdep_assert_held(q);
bio_list_init(&bl);
......
......@@ -426,14 +426,10 @@ struct request_queue {
(1 << QUEUE_FLAG_SAME_COMP) | \
(1 << QUEUE_FLAG_ADD_RANDOM))
static inline int queue_is_locked(struct request_queue *q)
static inline void queue_lockdep_assert_held(struct request_queue *q)
{
#ifdef CONFIG_SMP
spinlock_t *lock = q->queue_lock;
return lock && spin_is_locked(lock);
#else
return 1;
#endif
if (q->queue_lock)
lockdep_assert_held(q->queue_lock);
}
static inline void queue_flag_set_unlocked(unsigned int flag,
......@@ -445,7 +441,7 @@ static inline void queue_flag_set_unlocked(unsigned int flag,
static inline int queue_flag_test_and_clear(unsigned int flag,
struct request_queue *q)
{
WARN_ON_ONCE(!queue_is_locked(q));
queue_lockdep_assert_held(q);
if (test_bit(flag, &q->queue_flags)) {
__clear_bit(flag, &q->queue_flags);
......@@ -458,7 +454,7 @@ static inline int queue_flag_test_and_clear(unsigned int flag,
static inline int queue_flag_test_and_set(unsigned int flag,
struct request_queue *q)
{
WARN_ON_ONCE(!queue_is_locked(q));
queue_lockdep_assert_held(q);
if (!test_bit(flag, &q->queue_flags)) {
__set_bit(flag, &q->queue_flags);
......@@ -470,7 +466,7 @@ static inline int queue_flag_test_and_set(unsigned int flag,
static inline void queue_flag_set(unsigned int flag, struct request_queue *q)
{
WARN_ON_ONCE(!queue_is_locked(q));
queue_lockdep_assert_held(q);
__set_bit(flag, &q->queue_flags);
}
......@@ -487,7 +483,7 @@ static inline int queue_in_flight(struct request_queue *q)
static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
{
WARN_ON_ONCE(!queue_is_locked(q));
queue_lockdep_assert_held(q);
__clear_bit(flag, &q->queue_flags);
}
......
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