Extern or forward variable declaration include/linux/fsnotify_backend.h, line 103 [usage...] include/linux/ksm.h, line 19 [usage...] include/linux/list_lru.h, line 15 [usage...] include/linux/memcontrol.h, line 25 [usage...] include/linux/memcontrol.h, line 789 [usage...] include/linux/mm_types.h, line 27 [usage...] include/linux/oom.h, line 15 [usage...] include/linux/slab.h, line 138 [usage...] include/linux/vmpressure.h, line 30 [usage...] Structure include/linux/memcontrol.h, line 192 [usage...] Class, struct, or union member include/linux/mm_types.h, line 201 [usage...]