Extern or forward variable declaration arch/x86/include/asm/nmi.h, line 18 [usage...] include/linux/fs.h, line 3330 [usage...] include/linux/hugetlb.h, line 14 [usage...] include/linux/mmzone.h, line 883 [usage...] include/linux/nmi.h, line 196 [usage...] include/linux/printk.h, line 84 [usage...] include/linux/sched/sysctl.h, line 7 [usage...] include/linux/security.h, line 64 [usage...] include/linux/sysctl.h, line 34 [usage...] include/linux/timer.h, line 189 [usage...] include/linux/vmstat.h, line 275 [usage...] include/linux/writeback.h, line 350 [usage...] include/net/ax25.h, line 215 [usage...] include/net/ndisc.h, line 68 [usage...] include/net/net_namespace.h, line 369 [usage...] Structure include/linux/sysctl.h, line 113 [usage...] Class, struct, or union member arch/s390/appldata/appldata.h, line 31 [usage...] include/linux/sysctl.h, line 137 [usage...] include/net/netns/conntrack.h, line 24 [usage...] net/rds/tcp.c, line 396 [usage...]