dma-buf: add reservation_object_lock_interruptible()

	return ww_mutex_lock(&obj->lock, ctx);

}

/**

 * reservation_object_lock_interruptible - lock the reservation object

 * @obj: the reservation object

 * @ctx: the locking context

 *

 * Locks the reservation object interruptible for exclusive access and

 * modification. Note, that the lock is only against other writers, readers

 * will run concurrently with a writer under RCU. The seqlock is used to

 * notify readers if they overlap with a writer.

 *

 * As the reservation object may be locked by multiple parties in an

 * undefined order, a #ww_acquire_ctx is passed to unwind if a cycle

 * is detected. See ww_mutex_lock() and ww_acquire_init(). A reservation

 * object may be locked by itself by passing NULL as @ctx.

 */

static inline int

reservation_object_lock_interruptible(struct reservation_object *obj,

				      struct ww_acquire_ctx *ctx)

{

	return ww_mutex_lock_interruptible(&obj->lock, ctx);

}

/**

 * reservation_object_trylock - trylock the reservation object

 * @obj: the reservation object