Initial Contribution

msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142

Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>

arch/arm/kernel/traps.c

@@ -453,6 +453,10 @@ do_cache_op(unsigned long start, unsigned long end, int flags)
 
 		up_read(&mm->mmap_sem);
 		flush_cache_user_range(start, end);
+
+#ifdef CONFIG_ARCH_MSM7X27
+		mb();
+#endif
 		return;
 	}
 	up_read(&mm->mmap_sem);