On 08/12/2016 05:38 PM, Dave Hansen wrote:
On 08/12/2016 02:25 PM, Waiman Long wrote:
+ * The lock and the hpet value are stored together and can be read in a
+ * single atomic 64-bit read. It is explicitly assumed that the raw spinlock
+ * size is 32-bit.
So what happens when we have all the fun debugging options on?
typedef struct raw_spinlock {
arch_spinlock_t raw_lock;
#ifdef CONFIG_GENERIC_LOCKBREAK
unsigned int break_lock;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
unsigned int magic, owner_cpu;
void *owner;
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
} raw_spinlock_t;
Sorry, it should be arch_spinlock_t instead. Will fix that.
Cheers,
Longman
