1#include <linux/mm.h> 2#include <linux/sched.h> 3#include <linux/init.h> 4 5#include <asm/uaccess.h> 6#include <asm/pgtable.h> 7#include <asm/desc.h> 8 9static struct fs_struct init_fs = INIT_FS; 10static struct files_struct init_files = INIT_FILES; 11static struct signal_struct init_signals = INIT_SIGNALS; 12struct mm_struct init_mm = INIT_MM(init_mm); 13 14/* 15 * Initial task structure. 16 * 17 * We need to make sure that this is 8192-byte aligned due to the 18 * way process stacks are handled. This is done by having a special 19 * "init_task" linker map entry.. 20 */ 21union task_union init_task_union 22 __attribute__((__section__(".data.init_task"))) = 23 { INIT_TASK(init_task_union.task) }; 24 25/* 26 * per-CPU TSS segments. Threads are completely 'soft' on Linux, 27 * no more per-task TSS's. The TSS size is kept cacheline-aligned 28 * so they are allowed to end up in the .data.cacheline_aligned 29 * section. Since TSS's are completely CPU-local, we want them 30 * on exact cacheline boundaries, to eliminate cacheline ping-pong. 31 */ 32struct tss_struct init_tss[NR_CPUS] __cacheline_aligned = { [0 ... NR_CPUS-1] = INIT_TSS }; 33 34