FIRST_PROCESS_ENTRY 3311 fs/proc/base.c #define TGID_OFFSET (FIRST_PROCESS_ENTRY + 2)
FIRST_PROCESS_ENTRY  256 fs/proc/root.c 	if (ctx->pos < FIRST_PROCESS_ENTRY) {
FIRST_PROCESS_ENTRY  260 fs/proc/root.c 		ctx->pos = FIRST_PROCESS_ENTRY;