2 #include <linux/sched.h>
3 #include <linux/init.h>
4 #include <linux/init_task.h>
7 #include <asm/uaccess.h>
8 #include <asm/pgtable.h>
11 static struct fs_struct init_fs
= INIT_FS
;
12 static struct files_struct init_files
= INIT_FILES
;
13 static struct signal_struct init_signals
= INIT_SIGNALS(init_signals
);
14 struct mm_struct init_mm
= INIT_MM(init_mm
);
17 * Initial thread structure.
19 * We need to make sure that this is 8192-byte aligned due to the
20 * way process stacks are handled. This is done by having a special
21 * "init_task" linker map entry..
23 union thread_union init_thread_union
24 __attribute__((__section__(".data.init_task"))) =
25 { INIT_THREAD_INFO(init_task
) };
28 * Initial task structure.
30 * All other task structs will be allocated on slabs in fork.c
32 struct task_struct init_task
= INIT_TASK(init_task
);
35 * per-CPU TSS segments. Threads are completely 'soft' on Linux,
36 * no more per-task TSS's. The TSS size is kept cacheline-aligned
37 * so they are allowed to end up in the .data.cacheline_aligned
38 * section. Since TSS's are completely CPU-local, we want them
39 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
41 struct tss_struct init_tss
[NR_CPUS
] __cacheline_aligned
= { [0 ... NR_CPUS
-1] = INIT_TSS
};