From: Alexander Loktionov <[email protected]>
Date: Thu, 12 Jan 2017 21:02:18 -0800
> +#define AQ_OBJ_HEADER spinlock_t lock; atomic_t flags; atomic_t busy_count
> +
> +struct aq_obj_s {
> + AQ_OBJ_HEADER;
> +};
Please don't hide multiple declarations and types inside of a macro,
that makes the code harder to understand.
Use a sub-structure or similar, and pass that sub-structure to the
handlers.
> +#define AQ_OBJ_TST(_OBJ_, _FLAG_) ((_FLAG_) & atomic_read(&(_OBJ_)->flags))
> +
> +#define AQ_OBJ_SET(_OBJ_, _F_) \
...
> +#define AQ_OBJ_CLR(_OBJ_, _F_) \
Please don't reinvent the wheel.
Use test_bit, set_bit, clear_bit, test_and_set_bit, and
test_and_clear_bit. Using an atomic_t for flag bits is completely
inappropriate, that type is primarily meant for atomic counters.
The appropriate type for *_bit() operations is "unsigned long".
