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This patch needs to be applied when trying to build aufs on top
of a kernel with patched in linux vserver[1] support.

The vserver patch changes the type of the 'i_flags' field within
'struct inode' from 'unsigned int' to 'unsigned short'. 

Initial build time test was done using following version:

linux kernel: 3.10.2
linux vserver patch: patch-3.10.9-vs2.3.6.6.diff [2]
aufs3-standalone: 3.10-20130916

[1] http://linux-vserver.org
[2] http://vserver.13thfloor.at/Experimental/patch-3.10.9-vs2.3.6.6.diff

--- a/fs/aufs/cpup.h
+++ b/fs/aufs/cpup.h
@@ -31,7 +31,7 @@
 struct file;
 struct au_pin;
 
-void au_cpup_attr_flags(struct inode *dst, unsigned int iflags);
+void au_cpup_attr_flags(struct inode *dst, unsigned short iflags);
 void au_cpup_attr_timesizes(struct inode *inode);
 void au_cpup_attr_nlink(struct inode *inode, int force);
 void au_cpup_attr_changeable(struct inode *inode);
--- a/fs/aufs/cpup.c
+++ b/fs/aufs/cpup.c
@@ -24,7 +24,7 @@
 #include <linux/mm.h>
 #include "aufs.h"
 
-void au_cpup_attr_flags(struct inode *dst, unsigned int iflags)
+void au_cpup_attr_flags(struct inode *dst, unsigned short iflags)
 {
 	const unsigned int mask = S_DEAD | S_SWAPFILE | S_PRIVATE
 		| S_NOATIME | S_NOCMTIME | S_AUTOMOUNT;