Extern or forward variable declaration at include/linux/proc_ns.h, line 10 References: fs/proc/array.c, line 142 fs/proc/array.c, line 426 fs/proc/array.c, line 452 fs/proc/array.c, line 646 fs/proc/array.c, line 652 fs/proc/array.c, line 658 fs/proc/base.c, line 385 fs/proc/base.c, line 425 fs/proc/base.c, line 473 fs/proc/base.c, line 547 fs/proc/base.c, line 593 fs/proc/base.c, line 637 fs/proc/base.c, line 766 fs/proc/base.c, line 1440 fs/proc/base.c, line 2413 fs/proc/base.c, line 2988 fs/proc/base.c, line 2994 fs/proc/base.c, line 3133 fs/proc/base.c, line 3145 fs/proc/base.c, line 3154 fs/proc/base.c, line 3369 fs/proc/base.c, line 3407 fs/proc/base.c, line 3437 fs/proc/base.c, line 3669 fs/proc/base.c, line 3713 fs/proc/base.c, line 3782 fs/proc/internal.h, line 88 fs/proc/internal.h, line 152 fs/proc/internal.h, line 154 fs/proc/internal.h, line 156 fs/proc/internal.h, line 158 fs/proc/root.c, line 33 kernel/bpf/helpers.c, line 572 kernel/cgroup/cgroup.c, line 5934 kernel/pid.c, line 75 kernel/pid.c, line 107 kernel/pid.c, line 135 kernel/pid.c, line 159 kernel/pid.c, line 165 kernel/pid.c, line 302 kernel/pid.c, line 309 kernel/pid.c, line 413 kernel/pid.c, line 472 kernel/pid.c, line 493 kernel/pid.c, line 507 kernel/pid.c, line 518 kernel/pid_namespace.c, line 71 kernel/pid_namespace.c, line 72 kernel/pid_namespace.c, line 74 kernel/pid_namespace.c, line 126 kernel/pid_namespace.c, line 126 kernel/pid_namespace.c, line 134 kernel/pid_namespace.c, line 142 kernel/pid_namespace.c, line 143 kernel/pid_namespace.c, line 152 kernel/pid_namespace.c, line 154 kernel/pid_namespace.c, line 166 kernel/pid_namespace.c, line 262 kernel/pid_namespace.c, line 300 kernel/pid_namespace.c, line 329 kernel/pid_namespace.c, line 331 kernel/pid_namespace.c, line 336 kernel/pid_namespace.c, line 349 kernel/pid_namespace.c, line 378 kernel/pid_namespace.c, line 379 kernel/pid_namespace.c, line 409 kernel/pid_namespace.c, line 410 kernel/pid_namespace.c, line 453