MERGE-master-patchset-edits
[linux-2.6/openmoko-kernel.git] / arch / x86 / kernel / init_task.c
blobdf3bf269beab96466785764b619bc737fd0f5d55
1 #include <linux/mm.h>
2 #include <linux/module.h>
3 #include <linux/sched.h>
4 #include <linux/init.h>
5 #include <linux/init_task.h>
6 #include <linux/fs.h>
7 #include <linux/mqueue.h>
9 #include <asm/uaccess.h>
10 #include <asm/pgtable.h>
11 #include <asm/desc.h>
13 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
14 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
15 struct mm_struct init_mm = INIT_MM(init_mm);
18 * Initial thread structure.
20 * We need to make sure that this is THREAD_SIZE aligned due to the
21 * way process stacks are handled. This is done by having a special
22 * "init_task" linker map entry..
24 union thread_union init_thread_union
25 __attribute__((__section__(".data.init_task"))) =
26 { INIT_THREAD_INFO(init_task) };
29 * Initial task structure.
31 * All other task structs will be allocated on slabs in fork.c
33 struct task_struct init_task = INIT_TASK(init_task);
34 EXPORT_SYMBOL(init_task);
37 * per-CPU TSS segments. Threads are completely 'soft' on Linux,
38 * no more per-task TSS's. The TSS size is kept cacheline-aligned
39 * so they are allowed to end up in the .data.cacheline_aligned
40 * section. Since TSS's are completely CPU-local, we want them
41 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
43 DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;