2 #include <linux/module.h>
3 #include <linux/sched.h>
4 #include <linux/init.h>
5 #include <linux/init_task.h>
7 #include <linux/mqueue.h>
9 #include <asm/uaccess.h>
10 #include <asm/pgtable.h>
13 static struct fs_struct init_fs
= INIT_FS
;
14 static struct files_struct init_files
= INIT_FILES
;
15 static struct signal_struct init_signals
= INIT_SIGNALS(init_signals
);
16 static struct sighand_struct init_sighand
= INIT_SIGHAND(init_sighand
);
17 struct mm_struct init_mm
= INIT_MM(init_mm
);
19 EXPORT_SYMBOL(init_mm
);
22 * Initial task structure.
24 * We need to make sure that this is 8192-byte aligned due to the
25 * way process stacks are handled. This is done by having a special
26 * "init_task" linker map entry..
28 union thread_union init_thread_union
29 __attribute__((__section__(".data.init_task"))) =
30 { INIT_THREAD_INFO(init_task
) };
33 * Initial task structure.
35 * All other task structs will be allocated on slabs in fork.c
37 struct task_struct init_task
= INIT_TASK(init_task
);
39 EXPORT_SYMBOL(init_task
);
41 * per-CPU TSS segments. Threads are completely 'soft' on Linux,
42 * no more per-task TSS's. The TSS size is kept cacheline-aligned
43 * so they are allowed to end up in the .data.cacheline_aligned
44 * section. Since TSS's are completely CPU-local, we want them
45 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
47 DEFINE_PER_CPU(struct tss_struct
, init_tss
) ____cacheline_internodealigned_in_smp
= INIT_TSS
;
49 #define ALIGN_TO_4K __attribute__((section(".data.init_task")))