arch: Reintroduce user_fpregs_struct_t on x86

Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>

criu/arch/x86/crtools.c

@@ -112,7 +112,7 @@ int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
 
 int get_task_regs(pid_t pid, user_regs_struct_t regs, CoreEntry *core)
 {
-	struct xsave_struct xsave	= {  };
+	user_fpregs_struct_t xsave	= {  };
 
 	struct iovec iov;
 	int ret = -1;

criu/arch/x86/include/asm/types.h

@@ -83,6 +83,7 @@ typedef struct {
 	unsigned long	gs;
 } user_regs_struct_t;
 
+#if 0
 typedef struct {
 	unsigned short	cwd;
 	unsigned short	swd;
@@ -97,6 +98,9 @@ typedef struct {
 	u32		xmm_space[64];	/* 16*16 bytes for each XMM-reg = 256 bytes */
 	u32		padding[24];
 } user_fpregs_struct_t;
+#endif
+
+typedef struct xsave_struct user_fpregs_struct_t;
 
 #ifdef CONFIG_X86_64
 # define TASK_SIZE	((1UL << 47) - PAGE_SIZE)