MAX_LOCKDEP_KEYS_BITS - Linux

Symbol: MAX_LOCKDEP_KEYS_BITS

include/linux/lockdep_types.h

#define MAX_LOCKDEP_KEYS (1UL << MAX_LOCKDEP_KEYS_BITS)

include/linux/lockdep_types.h

unsigned int class_idx:MAX_LOCKDEP_KEYS_BITS;

kernel/locking/lockdep.c

#define KEYHASH_BITS (MAX_LOCKDEP_KEYS_BITS - 1)

kernel/locking/lockdep.c

#define CLASSHASH_BITS (MAX_LOCKDEP_KEYS_BITS - 1)

kernel/locking/lockdep.c

BUILD_BUG_ON(MAX_LOCKDEP_KEYS_BITS + 2 > 16);

kernel/locking/lockdep.c

return (hlock->class_idx | (hlock->read << MAX_LOCKDEP_KEYS_BITS));