down_read_nested - Linux

Symbol: down_read_nested

include/linux/rwsem.h

# define down_read_nested(sem, subclass) down_read(sem)

kernel/locking/rwsem.c

void down_read_nested(struct rw_semaphore *sem, int subclass)

tools/include/linux/rwsem.h

#define down_read_nested(sem, subclass) down_read(sem)