Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[safe/jmp/linux-2.6] / arch / x86 / math-emu / fpu_entry.c

diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 6e38d87..5d87f58 100644 (file)
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -30,6 +30,7 @@
 #include <asm/uaccess.h>
 #include <asm/desc.h>
 #include <asm/user.h>
+#include <asm/i387.h>
 
 #include "fpu_system.h"
 #include "fpu_emu.h"
@@ -130,7 +131,7 @@ u_char emulating = 0;
 static int valid_prefix(u_char *Byte, u_char __user ** fpu_eip,
                        overrides * override);
 
-asmlinkage void math_emulate(long arg)
+void math_emulate(struct math_emu_info *info)
 {
        u_char FPU_modrm, byte1;
        unsigned short code;
@@ -146,6 +147,13 @@ asmlinkage void math_emulate(long arg)
        unsigned long code_limit = 0;   /* Initialized to stop compiler warnings */
        struct desc_struct code_descriptor;
 
+       if (!used_math()) {
+               if (init_fpu(current)) {
+                       do_group_exit(SIGKILL);
+                       return;
+               }
+       }
+
 #ifdef RE_ENTRANT_CHECKING
        if (emulating) {
                printk("ERROR: wm-FPU-emu is not RE-ENTRANT!\n");
@@ -153,12 +161,7 @@ asmlinkage void math_emulate(long arg)
        RE_ENTRANT_CHECK_ON;
 #endif /* RE_ENTRANT_CHECKING */
 
-       if (!used_math()) {
-               finit();
-               set_used_math();
-       }
-
-       SETUP_DATA_AREA(arg);
+       FPU_info = info;
 
        FPU_ORIG_EIP = FPU_EIP;
 
@@ -656,7 +659,7 @@ static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
        }
 }
 
-void math_abort(struct info *info, unsigned int signal)
+void math_abort(struct math_emu_info *info, unsigned int signal)
 {
        FPU_EIP = FPU_ORIG_EIP;
        current->thread.trap_no = 16;