tag	line	file	source code
PAGE_SHARED	618	ipc/shm.c	shp->shm_pages[idx] = page | (PAGE_SHARED | PAGE_DIRTY);
PAGE_SHARED	596	mm/memory.c	*(unsigned long *) pte = BAD_PAGE | PAGE_SHARED;
PAGE_SHARED	1028	mm/memory.c	*pg_table = address | PAGE_SHARED;