x86, math-emu: fix init_fpu for task != current
[linux-2.6.git] / arch / x86 / math-emu / fpu_aux.c
index 491e737..aa09870 100644 (file)
@@ -30,20 +30,29 @@ static void fclex(void)
 }
 
 /* Needs to be externally visible */
-void finit(void)
+void finit_task(struct task_struct *tsk)
 {
-       control_word = 0x037f;
-       partial_status = 0;
-       top = 0;                /* We don't keep top in the status word internally. */
-       fpu_tag_word = 0xffff;
+       struct i387_soft_struct *soft = &tsk->thread.xstate->soft;
+       struct address *oaddr, *iaddr;
+       soft->cwd = 0x037f;
+       soft->swd = 0;
+       soft->ftop = 0; /* We don't keep top in the status word internally. */
+       soft->twd = 0xffff;
        /* The behaviour is different from that detailed in
           Section 15.1.6 of the Intel manual */
-       operand_address.offset = 0;
-       operand_address.selector = 0;
-       instruction_address.offset = 0;
-       instruction_address.selector = 0;
-       instruction_address.opcode = 0;
-       no_ip_update = 1;
+       oaddr = (struct address *)&soft->foo;
+       oaddr->offset = 0;
+       oaddr->selector = 0;
+       iaddr = (struct address *)&soft->fip;
+       iaddr->offset = 0;
+       iaddr->selector = 0;
+       iaddr->opcode = 0;
+       soft->no_update = 1;
+}
+
+void finit(void)
+{
+       finit_task(current);
 }
 
 /*