atomic_dec_unless_positive   76 include/linux/atomic.h #ifndef atomic_dec_unless_positive
atomic_dec_unless_positive  506 include/linux/fs.h 	return atomic_dec_unless_positive(&mapping->i_mmap_writable) ?
atomic_dec_unless_positive 2338 include/linux/fs.h 	return atomic_dec_unless_positive(&inode->i_writecount) ? 0 : -ETXTBSY;