arch/x86/include/asm/thread_info.h - pub/scm/linux/kernel/git/viro/vfs - Git at Google

 /* thread_info.h: low-level thread information
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
  * - Incorporating suggestions made by Linus Torvalds and Dave Miller
  */

 #ifndef _ASM_X86_THREAD_INFO_H
 #define _ASM_X86_THREAD_INFO_H

 #include <linux/compiler.h>
 #include <asm/page.h>
 #include <asm/types.h>

 /*
  * low level task data that entry.S needs immediate access to
  * - this struct should fit entirely inside of one cache line
  * - this struct shares the supervisor stack pages
  */
 #ifndef __ASSEMBLY__
 struct task_struct;
 struct exec_domain;
 #include <asm/processor.h>
 #include <asm/ftrace.h>
 #include <linux/atomic.h>

 struct thread_info {
 	struct task_struct	*task;		/* main task structure */
 	struct exec_domain	*exec_domain;	/* execution domain */
 	__u32			flags;		/* low level flags */
 	__u32			status;		/* thread synchronous flags */
 	__u32			cpu;		/* current CPU */
 	int			preempt_count;	/* 0 => preemptable,
 						   <0 => BUG */
 	mm_segment_t		addr_limit;
 	struct restart_block    restart_block;
 	void __user		*sysenter_return;
 #ifdef CONFIG_X86_32
 	unsigned long           previous_esp;   /* ESP of the previous stack in
 						   case of nested (IRQ) stacks
 						*/
 	__u8			supervisor_stack[0];
 #endif
 	unsigned int		sig_on_uaccess_error:1;
 	unsigned int		uaccess_err:1;	/* uaccess failed */
 };

 #define INIT_THREAD_INFO(tsk)			\
 {						\
 	.task		= &tsk,			\
 	.exec_domain	= &default_exec_domain,	\
 	.flags		= 0,			\
 	.cpu		= 0,			\
 	.preempt_count	= INIT_PREEMPT_COUNT,	\
 	.addr_limit	= KERNEL_DS,		\
 	.restart_block = {			\
 		.fn = do_no_restart_syscall,	\
 	},					\
 }

 #define init_thread_info	(init_thread_union.thread_info)
 #define init_stack		(init_thread_union.stack)

 #else /* !__ASSEMBLY__ */

 #include <asm/asm-offsets.h>

 #endif

 /*
  * thread information flags
  * - these are process state flags that various assembly files
  *   may need to access
  * - pending work-to-be-done flags are in LSW
  * - other flags in MSW
  * Warning: layout of LSW is hardcoded in entry.S
  */
 #define TIF_SYSCALL_TRACE	0	/* syscall trace active */
 #define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
 #define TIF_SIGPENDING		2	/* signal pending */
 #define TIF_NEED_RESCHED	3	/* rescheduling necessary */
 #define TIF_SINGLESTEP		4	/* reenable singlestep on user return*/
 #define TIF_IRET		5	/* force IRET */
 #define TIF_SYSCALL_EMU		6	/* syscall emulation active */
 #define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_SECCOMP		8	/* secure computing */
 #define TIF_MCE_NOTIFY		10	/* notify userspace of an MCE */
 #define TIF_USER_RETURN_NOTIFY	11	/* notify kernel of userspace return */
 #define TIF_UPROBE		12	/* breakpointed or singlestepping */
 #define TIF_NOTSC		16	/* TSC is not accessible in userland */
 #define TIF_IA32		17	/* IA32 compatibility process */
 #define TIF_FORK		18	/* ret_from_fork */
 #define TIF_MEMDIE		20	/* is terminating due to OOM killer */
 #define TIF_DEBUG		21	/* uses debug registers */
 #define TIF_IO_BITMAP		22	/* uses I/O bitmap */
 #define TIF_FORCED_TF		24	/* true if TF in eflags artificially */
 #define TIF_BLOCKSTEP		25	/* set when we want DEBUGCTLMSR_BTF */
 #define TIF_LAZY_MMU_UPDATES	27	/* task is updating the mmu lazily */
 #define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
 #define TIF_ADDR32		29	/* 32-bit address space on 64 bits */
 #define TIF_X32			30	/* 32-bit native x86-64 binary */

 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
 #define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_IRET		(1 << TIF_IRET)
 #define _TIF_SYSCALL_EMU	(1 << TIF_SYSCALL_EMU)
 #define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
 #define _TIF_MCE_NOTIFY		(1 << TIF_MCE_NOTIFY)
 #define _TIF_USER_RETURN_NOTIFY	(1 << TIF_USER_RETURN_NOTIFY)
 #define _TIF_UPROBE		(1 << TIF_UPROBE)
 #define _TIF_NOTSC		(1 << TIF_NOTSC)
 #define _TIF_IA32		(1 << TIF_IA32)
 #define _TIF_FORK		(1 << TIF_FORK)
 #define _TIF_DEBUG		(1 << TIF_DEBUG)
 #define _TIF_IO_BITMAP		(1 << TIF_IO_BITMAP)
 #define _TIF_FORCED_TF		(1 << TIF_FORCED_TF)
 #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
 #define _TIF_LAZY_MMU_UPDATES	(1 << TIF_LAZY_MMU_UPDATES)
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 #define _TIF_ADDR32		(1 << TIF_ADDR32)
 #define _TIF_X32		(1 << TIF_X32)

 /* work to do in syscall_trace_enter() */
 #define _TIF_WORK_SYSCALL_ENTRY	\
 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |	\
 	 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT)

 /* work to do in syscall_trace_leave() */
 #define _TIF_WORK_SYSCALL_EXIT	\
 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP |	\
 	 _TIF_SYSCALL_TRACEPOINT)

 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK							\
 	(0x0000FFFF &							\
 	 ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|			\
 	   _TIF_SINGLESTEP|_TIF_SECCOMP|_TIF_SYSCALL_EMU))

 /* work to do on any return to user space */
 #define _TIF_ALLWORK_MASK						\
 	((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT)

 /* Only used for 64 bit */
 #define _TIF_DO_NOTIFY_MASK						\
 	(_TIF_SIGPENDING | _TIF_MCE_NOTIFY | _TIF_NOTIFY_RESUME |	\
 	 _TIF_USER_RETURN_NOTIFY)

 /* flags to check in __switch_to() */
 #define _TIF_WORK_CTXSW							\
 	(_TIF_IO_BITMAP|_TIF_NOTSC|_TIF_BLOCKSTEP)

 #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG)

 #define PREEMPT_ACTIVE		0x10000000

 #ifdef CONFIG_X86_32

 #define STACK_WARN	(THREAD_SIZE/8)
 /*
  * macros/functions for gaining access to the thread information structure
  *
  * preempt_count needs to be 1 initially, until the scheduler is functional.
  */
 #ifndef __ASSEMBLY__


 /* how to get the current stack pointer from C */
 register unsigned long current_stack_pointer asm("esp") __used;

 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)
 {
 	return (struct thread_info *)
 		(current_stack_pointer & ~(THREAD_SIZE - 1));
 }

 #else /* !__ASSEMBLY__ */

 /* how to get the thread information struct from ASM */
 #define GET_THREAD_INFO(reg)	 \
 	movl $-THREAD_SIZE, reg; \
 	andl %esp, reg

 /* use this one if reg already contains %esp */
 #define GET_THREAD_INFO_WITH_ESP(reg) \
 	andl $-THREAD_SIZE, reg

 #endif

 #else /* X86_32 */

 #include <asm/percpu.h>
 #define KERNEL_STACK_OFFSET (5*8)

 /*
  * macros/functions for gaining access to the thread information structure
  * preempt_count needs to be 1 initially, until the scheduler is functional.
  */
 #ifndef __ASSEMBLY__
 DECLARE_PER_CPU(unsigned long, kernel_stack);

 static inline struct thread_info *current_thread_info(void)
 {
 	struct thread_info *ti;
 	ti = (void *)(this_cpu_read_stable(kernel_stack) +
 		      KERNEL_STACK_OFFSET - THREAD_SIZE);
 	return ti;
 }

 #else /* !__ASSEMBLY__ */

 /* how to get the thread information struct from ASM */
 #define GET_THREAD_INFO(reg) \
 	movq PER_CPU_VAR(kernel_stack),reg ; \
 	subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg

 /*
  * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
  * a certain register (to be used in assembler memory operands).
  */
 #define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)

 #endif

 #endif /* !X86_32 */

 /*
  * Thread-synchronous status.
  *
  * This is different from the flags in that nobody else
  * ever touches our thread-synchronous status, so we don't
  * have to worry about atomic accesses.
  */
 #define TS_COMPAT		0x0002	/* 32bit syscall active (64BIT)*/
 #define TS_POLLING		0x0004	/* idle task polling need_resched,
 					   skip sending interrupt */
 #define TS_RESTORE_SIGMASK	0x0008	/* restore signal mask in do_signal() */

 #define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)

 #ifndef __ASSEMBLY__
 #define HAVE_SET_RESTORE_SIGMASK	1
 static inline void set_restore_sigmask(void)
 {
 	struct thread_info *ti = current_thread_info();
 	ti->status |= TS_RESTORE_SIGMASK;
 	WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
 }
 static inline void clear_restore_sigmask(void)
 {
 	current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
 }
 static inline bool test_restore_sigmask(void)
 {
 	return current_thread_info()->status & TS_RESTORE_SIGMASK;
 }
 static inline bool test_and_clear_restore_sigmask(void)
 {
 	struct thread_info *ti = current_thread_info();
 	if (!(ti->status & TS_RESTORE_SIGMASK))
 		return false;
 	ti->status &= ~TS_RESTORE_SIGMASK;
 	return true;
 }

 static inline bool is_ia32_task(void)
 {
 #ifdef CONFIG_X86_32
 	return true;
 #endif
 #ifdef CONFIG_IA32_EMULATION
 	if (current_thread_info()->status & TS_COMPAT)
 		return true;
 #endif
 	return false;
 }
 #endif	/* !__ASSEMBLY__ */

 #ifndef __ASSEMBLY__
 extern void arch_task_cache_init(void);
 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
 extern void arch_release_task_struct(struct task_struct *tsk);
 #endif
 #endif /* _ASM_X86_THREAD_INFO_H */
	/* thread_info.h: low-level thread information
	*
	* Copyright (C) 2002 David Howells (dhowells@redhat.com)
	* - Incorporating suggestions made by Linus Torvalds and Dave Miller
	*/

	#ifndef _ASM_X86_THREAD_INFO_H
	#define _ASM_X86_THREAD_INFO_H

	#include <linux/compiler.h>
	#include <asm/page.h>
	#include <asm/types.h>

	/*
	* low level task data that entry.S needs immediate access to
	* - this struct should fit entirely inside of one cache line
	* - this struct shares the supervisor stack pages
	*/
	#ifndef __ASSEMBLY__
	struct task_struct;
	struct exec_domain;
	#include <asm/processor.h>
	#include <asm/ftrace.h>
	#include <linux/atomic.h>

	struct thread_info {
	struct task_struct task; / main task structure */
	struct exec_domain exec_domain; / execution domain */
	__u32 flags; /* low level flags */
	__u32 status; /* thread synchronous flags */
	__u32 cpu; /* current CPU */
	int preempt_count; /* 0 => preemptable,
	<0 => BUG */
	mm_segment_t addr_limit;
	struct restart_block restart_block;
	void __user *sysenter_return;
	#ifdef CONFIG_X86_32
	unsigned long previous_esp; /* ESP of the previous stack in
	case of nested (IRQ) stacks
	*/
	__u8 supervisor_stack[0];
	#endif
	unsigned int sig_on_uaccess_error:1;
	unsigned int uaccess_err:1; /* uaccess failed */
	};

	#define INIT_THREAD_INFO(tsk) \
	{ \
	.task = &tsk, \
	.exec_domain = &default_exec_domain, \
	.flags = 0, \
	.cpu = 0, \
	.preempt_count = INIT_PREEMPT_COUNT, \
	.addr_limit = KERNEL_DS, \
	.restart_block = { \
	.fn = do_no_restart_syscall, \
	}, \
	}

	#define init_thread_info (init_thread_union.thread_info)
	#define init_stack (init_thread_union.stack)

	#else /* !__ASSEMBLY__ */

	#include <asm/asm-offsets.h>

	#endif

	/*
	* thread information flags
	* - these are process state flags that various assembly files
	* may need to access
	* - pending work-to-be-done flags are in LSW
	* - other flags in MSW
	* Warning: layout of LSW is hardcoded in entry.S
	*/
	#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
	#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
	#define TIF_SIGPENDING 2 /* signal pending */
	#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
	#define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/
	#define TIF_IRET 5 /* force IRET */
	#define TIF_SYSCALL_EMU 6 /* syscall emulation active */
	#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
	#define TIF_SECCOMP 8 /* secure computing */
	#define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */
	#define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */
	#define TIF_UPROBE 12 /* breakpointed or singlestepping */
	#define TIF_NOTSC 16 /* TSC is not accessible in userland */
	#define TIF_IA32 17 /* IA32 compatibility process */
	#define TIF_FORK 18 /* ret_from_fork */
	#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
	#define TIF_DEBUG 21 /* uses debug registers */
	#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
	#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */
	#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
	#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
	#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
	#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
	#define TIF_X32 30 /* 32-bit native x86-64 binary */

	#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
	#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
	#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
	#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
	#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
	#define _TIF_IRET (1 << TIF_IRET)
	#define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU)
	#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
	#define _TIF_SECCOMP (1 << TIF_SECCOMP)
	#define _TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY)
	#define _TIF_USER_RETURN_NOTIFY (1 << TIF_USER_RETURN_NOTIFY)
	#define _TIF_UPROBE (1 << TIF_UPROBE)
	#define _TIF_NOTSC (1 << TIF_NOTSC)
	#define _TIF_IA32 (1 << TIF_IA32)
	#define _TIF_FORK (1 << TIF_FORK)
	#define _TIF_DEBUG (1 << TIF_DEBUG)
	#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
	#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)
	#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
	#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
	#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
	#define _TIF_ADDR32 (1 << TIF_ADDR32)
	#define _TIF_X32 (1 << TIF_X32)

	/* work to do in syscall_trace_enter() */
	#define _TIF_WORK_SYSCALL_ENTRY \
	(_TIF_SYSCALL_TRACE \| _TIF_SYSCALL_EMU \| _TIF_SYSCALL_AUDIT \| \
	_TIF_SECCOMP \| _TIF_SINGLESTEP \| _TIF_SYSCALL_TRACEPOINT)

	/* work to do in syscall_trace_leave() */
	#define _TIF_WORK_SYSCALL_EXIT \
	(_TIF_SYSCALL_TRACE \| _TIF_SYSCALL_AUDIT \| _TIF_SINGLESTEP \| \
	_TIF_SYSCALL_TRACEPOINT)

	/* work to do on interrupt/exception return */
	#define _TIF_WORK_MASK \
	(0x0000FFFF & \
	~(_TIF_SYSCALL_TRACE\|_TIF_SYSCALL_AUDIT\| \
	_TIF_SINGLESTEP\|_TIF_SECCOMP\|_TIF_SYSCALL_EMU))

	/* work to do on any return to user space */
	#define _TIF_ALLWORK_MASK \
	((0x0000FFFF & ~_TIF_SECCOMP) \| _TIF_SYSCALL_TRACEPOINT)

	/* Only used for 64 bit */
	#define _TIF_DO_NOTIFY_MASK \
	(_TIF_SIGPENDING \| _TIF_MCE_NOTIFY \| _TIF_NOTIFY_RESUME \| \
	_TIF_USER_RETURN_NOTIFY)

	/* flags to check in __switch_to() */
	#define _TIF_WORK_CTXSW \
	(_TIF_IO_BITMAP\|_TIF_NOTSC\|_TIF_BLOCKSTEP)

	#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW\|_TIF_USER_RETURN_NOTIFY)
	#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW\|_TIF_DEBUG)

	#define PREEMPT_ACTIVE 0x10000000

	#ifdef CONFIG_X86_32

	#define STACK_WARN (THREAD_SIZE/8)
	/*
	* macros/functions for gaining access to the thread information structure
	*
	* preempt_count needs to be 1 initially, until the scheduler is functional.
	*/
	#ifndef __ASSEMBLY__


	/* how to get the current stack pointer from C */
	register unsigned long current_stack_pointer asm("esp") __used;

	/* how to get the thread information struct from C */
	static inline struct thread_info *current_thread_info(void)
	{
	return (struct thread_info *)
	(current_stack_pointer & ~(THREAD_SIZE - 1));
	}

	#else /* !__ASSEMBLY__ */

	/* how to get the thread information struct from ASM */
	#define GET_THREAD_INFO(reg) \
	movl $-THREAD_SIZE, reg; \
	andl %esp, reg

	/* use this one if reg already contains %esp */
	#define GET_THREAD_INFO_WITH_ESP(reg) \
	andl $-THREAD_SIZE, reg

	#endif

	#else /* X86_32 */

	#include <asm/percpu.h>
	#define KERNEL_STACK_OFFSET (5*8)

	/*
	* macros/functions for gaining access to the thread information structure
	* preempt_count needs to be 1 initially, until the scheduler is functional.
	*/
	#ifndef __ASSEMBLY__
	DECLARE_PER_CPU(unsigned long, kernel_stack);

	static inline struct thread_info *current_thread_info(void)
	{
	struct thread_info *ti;
	ti = (void *)(this_cpu_read_stable(kernel_stack) +
	KERNEL_STACK_OFFSET - THREAD_SIZE);
	return ti;
	}

	#else /* !__ASSEMBLY__ */

	/* how to get the thread information struct from ASM */
	#define GET_THREAD_INFO(reg) \
	movq PER_CPU_VAR(kernel_stack),reg ; \
	subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg

	/*
	* Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
	* a certain register (to be used in assembler memory operands).
	*/
	#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)

	#endif

	#endif /* !X86_32 */

	/*
	* Thread-synchronous status.
	*
	* This is different from the flags in that nobody else
	* ever touches our thread-synchronous status, so we don't
	* have to worry about atomic accesses.
	*/
	#define TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/
	#define TS_POLLING 0x0004 /* idle task polling need_resched,
	skip sending interrupt */
	#define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */

	#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)

	#ifndef __ASSEMBLY__
	#define HAVE_SET_RESTORE_SIGMASK 1
	static inline void set_restore_sigmask(void)
	{
	struct thread_info *ti = current_thread_info();
	ti->status \|= TS_RESTORE_SIGMASK;
	WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
	}
	static inline void clear_restore_sigmask(void)
	{
	current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
	}
	static inline bool test_restore_sigmask(void)
	{
	return current_thread_info()->status & TS_RESTORE_SIGMASK;
	}
	static inline bool test_and_clear_restore_sigmask(void)
	{
	struct thread_info *ti = current_thread_info();
	if (!(ti->status & TS_RESTORE_SIGMASK))
	return false;
	ti->status &= ~TS_RESTORE_SIGMASK;
	return true;
	}

	static inline bool is_ia32_task(void)
	{
	#ifdef CONFIG_X86_32
	return true;
	#endif
	#ifdef CONFIG_IA32_EMULATION
	if (current_thread_info()->status & TS_COMPAT)
	return true;
	#endif
	return false;
	}
	#endif /* !__ASSEMBLY__ */

	#ifndef __ASSEMBLY__
	extern void arch_task_cache_init(void);
	extern int arch_dup_task_struct(struct task_struct dst, struct task_struct src);
	extern void arch_release_task_struct(struct task_struct *tsk);
	#endif
	#endif /* _ASM_X86_THREAD_INFO_H */