[PATCH] v850: task_stack_page(), task_pt_regs()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -114,7 +114,7 @@ int copy_thread (int nr, unsigned long clone_flags,
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struct task_struct *p, struct pt_regs *regs)
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{
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/* Start pushing stuff from the top of the child's kernel stack. */
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unsigned long orig_ksp = (unsigned long)p->thread_info + THREAD_SIZE;
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unsigned long orig_ksp = task_tos(p);
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unsigned long ksp = orig_ksp;
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/* We push two `state save' stack fames (see entry.S) on the new
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kernel stack:
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@ -58,7 +58,7 @@ static v850_reg_t *reg_save_addr (unsigned reg_offs, struct task_struct *t)
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regs = thread_saved_regs (t);
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else
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/* Register saved during kernel entry (or not available). */
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regs = task_regs (t);
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regs = task_pt_regs (t);
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return (v850_reg_t *)((char *)regs + reg_offs);
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}
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@ -98,10 +98,10 @@ unsigned long get_wchan (struct task_struct *p);
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/* Return some info about the user process TASK. */
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#define task_tos(task) ((unsigned long)(task)->thread_info + THREAD_SIZE)
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#define task_regs(task) ((struct pt_regs *)task_tos (task) - 1)
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#define task_sp(task) (task_regs (task)->gpr[GPR_SP])
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#define task_pc(task) (task_regs (task)->pc)
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#define task_tos(task) ((unsigned long)task_stack_page(task) + THREAD_SIZE)
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#define task_pt_regs(task) ((struct pt_regs *)task_tos (task) - 1)
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#define task_sp(task) (task_pt_regs (task)->gpr[GPR_SP])
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#define task_pc(task) (task_pt_regs (task)->pc)
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/* Grotty old names for some. */
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#define KSTK_EIP(task) task_pc (task)
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#define KSTK_ESP(task) task_sp (task)
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