[IA64] Fix build failure in fs/quota.c

b716395e2b added code to handle
a compatability issue with 32bit quota tools, but the new compat
routines are only needed when CONFIG_COMPAT=y (and with this set
to 'n' there are compilation problems since some new typedefs are
not visible).

Reported by Doug Chapman.  Fix tuned by a cast of thousands (Andi,
Andreas, Arthur, HPA, Willy)

Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/Kconfig

@@ -425,6 +425,9 @@ config COMPAT
 	depends on IA32_SUPPORT
 	default y
 
+config COMPAT_FOR_U64_ALIGNMENT
+	def_bool COMPAT
+
 config IA64_MCA_RECOVERY
 	tristate "MCA recovery from errors other than TLB."
 

arch/x86_64/Kconfig

@@ -765,6 +765,9 @@ config COMPAT
 	depends on IA32_EMULATION
 	default y
 
+config COMPAT_FOR_U64_ALIGNMENT
+	def_bool COMPAT
+
 config SYSVIPC_COMPAT
 	bool
 	depends on COMPAT && SYSVIPC

fs/quota.c

@@ -387,7 +387,7 @@ asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, qid_t
 	return ret;
 }
 
-#if defined(CONFIG_X86_64) || defined(CONFIG_IA64)
+#if defined(CONFIG_COMPAT_FOR_U64_ALIGNMENT)
 /*
  * This code works only for 32 bit quota tools over 64 bit OS (x86_64, ia64)
  * and is necessary due to alignment problems.