tag	line	file	source code
WK_SLEEP	82	drivers/sound/os.h	f.mode = WK_SLEEP;interruptible_sleep_on(&q); \
WK_SLEEP	90	drivers/sound/os.h	f.mode &= ~WK_SLEEP; \
WK_SLEEP	92	drivers/sound/os.h	#define SOMEONE_WAITING(q, f) (f.mode & WK_SLEEP)