Extern or forward variable declaration include/linux/mm.h, line 19 [usage...] include/linux/sched.h, line 755 [usage...] Structure include/linux/mempolicy.h, line 62 [usage...] include/linux/mempolicy.h, line 180 [usage...] Class, struct, or union member include/linux/sched.h, line 973 [usage...]