diff --git a/debian/changelog b/debian/changelog
index ba362f642..852ce0a12 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -117,6 +117,7 @@ linux (4.9.8-1) UNRELEASED; urgency=medium
     USB_CONFIGFS_F_{LB_SS,LS,UAC1,UAC2,MIDI,HID,UVC,PRINTER}, USB_ETH_RNDIS,
     USB_FUNCTIONFS_{ETH,RNDIS,GENERIC} (thanks to Riku Voipio)
   * [ppc64el] Disable IBMEBUS; this bus does not exist on POWER8 systems
+  * aufs: Update support patchset to aufs4.9-20170206
 
   [ Roger Shimizu ]
   * [armel] ARM: dts: orion5x-lschl: Fix model name
diff --git a/debian/patches/features/all/aufs4/aufs4-base.patch b/debian/patches/features/all/aufs4/aufs4-base.patch
index 4c0442708..969f0eed8 100644
--- a/debian/patches/features/all/aufs4/aufs4-base.patch
+++ b/debian/patches/features/all/aufs4/aufs4-base.patch
@@ -1,7 +1,7 @@
 From: J. R. Okajima <hooanon05@yahoo.co.jp>
-Date: Fri Dec 16 21:28:57 2016 +0900
+Date: Sat Feb 4 13:13:07 2017 +0900
 Subject: aufs4.9 base patch
-Origin: https://github.com/sfjro/aufs4-standalone/tree/0d8e71c28da317ec6371b6b95b46a70cefe13777
+Origin: https://github.com/sfjro/aufs4-standalone/tree/ecd2bfe6f46f36658c9aef74fc43ac40e47f8438
 Bug-Debian: https://bugs.debian.org/541828
 
 Patch headers added by debian/patches/features/all/aufs4/gen-patch
@@ -100,7 +100,7 @@ diff --git a/fs/inode.c b/fs/inode.c
 index 88110fd..9a9ba3a 100644
 --- a/fs/inode.c
 +++ b/fs/inode.c
-@@ -1642,7 +1642,7 @@ int generic_update_time(struct inode *inode, struct timespec *time, int flags)
+@@ -1642,7 +1642,7 @@ EXPORT_SYMBOL(generic_update_time);
   * This does the actual work of updating an inodes time or version.  Must have
   * had called mnt_want_write() before calling this.
   */
@@ -146,7 +146,7 @@ diff --git a/fs/splice.c b/fs/splice.c
 index 5a7750b..28160a7 100644
 --- a/fs/splice.c
 +++ b/fs/splice.c
-@@ -855,8 +855,8 @@ ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe, struct file *out,
+@@ -855,8 +855,8 @@ EXPORT_SYMBOL(generic_splice_sendpage);
  /*
   * Attempt to initiate a splice from pipe to file.
   */
@@ -170,11 +170,24 @@ index 5a7750b..28160a7 100644
  {
  	ssize_t (*splice_read)(struct file *, loff_t *,
  			       struct pipe_inode_info *, size_t, unsigned int);
+diff --git a/fs/sync.c b/fs/sync.c
+index 2a54c1f..7a5fa3f 100644
+--- a/fs/sync.c
++++ b/fs/sync.c
+@@ -27,7 +27,7 @@
+  * wait == 1 case since in that case write_inode() functions do
+  * sync_dirty_buffer() and thus effectively write one block at a time.
+  */
+-static int __sync_filesystem(struct super_block *sb, int wait)
++int __sync_filesystem(struct super_block *sb, int wait)
+ {
+ 	if (wait)
+ 		sync_inodes_sb(sb);
 diff --git a/include/linux/file.h b/include/linux/file.h
 index 7444f5f..bdac0be 100644
 --- a/include/linux/file.h
 +++ b/include/linux/file.h
-@@ -19,6 +19,7 @@
+@@ -19,6 +19,7 @@ struct dentry;
  struct path;
  extern struct file *alloc_file(struct path *, fmode_t mode,
  	const struct file_operations *fop);
@@ -183,10 +196,10 @@ index 7444f5f..bdac0be 100644
  static inline void fput_light(struct file *file, int fput_needed)
  {
 diff --git a/include/linux/fs.h b/include/linux/fs.h
-index dc0478c..27c05e7 100644
+index dc0478c..a02be40d 100644
 --- a/include/linux/fs.h
 +++ b/include/linux/fs.h
-@@ -1291,6 +1291,7 @@ struct fasync_struct {
+@@ -1291,6 +1291,7 @@ extern void fasync_free(struct fasync_struct *);
  /* can be called from interrupts */
  extern void kill_fasync(struct fasync_struct **, int, int);
  
@@ -215,7 +228,7 @@ index dc0478c..27c05e7 100644
  extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
  extern ssize_t __vfs_write(struct file *, const char __user *, size_t, loff_t *);
  extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
-@@ -2140,6 +2148,7 @@ extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
+@@ -2140,6 +2148,7 @@ extern int current_umask(void);
  extern void ihold(struct inode * inode);
  extern void iput(struct inode *);
  extern int generic_update_time(struct inode *, struct timespec *, int);
@@ -223,11 +236,19 @@ index dc0478c..27c05e7 100644
  
  /* /sys/fs */
  extern struct kobject *fs_kobj;
+@@ -2419,6 +2428,7 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
+ 	return false;
+ }
+ #endif
++extern int __sync_filesystem(struct super_block *, int);
+ extern int sync_filesystem(struct super_block *);
+ extern const struct file_operations def_blk_fops;
+ extern const struct file_operations def_chr_fops;
 diff --git a/include/linux/splice.h b/include/linux/splice.h
 index 00a2116..1f0a4a2 100644
 --- a/include/linux/splice.h
 +++ b/include/linux/splice.h
-@@ -86,4 +86,10 @@ extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *,
+@@ -86,4 +86,10 @@ extern void spd_release_page(struct splice_pipe_desc *, unsigned int);
  
  extern const struct pipe_buf_operations page_cache_pipe_buf_ops;
  extern const struct pipe_buf_operations default_pipe_buf_ops;
diff --git a/debian/patches/features/all/aufs4/aufs4-mmap.patch b/debian/patches/features/all/aufs4/aufs4-mmap.patch
index 04010d6cc..a8c38c951 100644
--- a/debian/patches/features/all/aufs4/aufs4-mmap.patch
+++ b/debian/patches/features/all/aufs4/aufs4-mmap.patch
@@ -1,7 +1,7 @@
 From: J. R. Okajima <hooanon05@yahoo.co.jp>
-Date: Fri Dec 16 21:28:57 2016 +0900
+Date: Sat Jan 28 00:46:14 2017 +0900
 Subject: aufs4.9 mmap patch
-Origin: https://github.com/sfjro/aufs4-standalone/tree/0d8e71c28da317ec6371b6b95b46a70cefe13777
+Origin: https://github.com/sfjro/aufs4-standalone/tree/ecd2bfe6f46f36658c9aef74fc43ac40e47f8438
 Bug-Debian: https://bugs.debian.org/541828
 
 Patch headers added by debian/patches/features/all/aufs4/gen-patch
@@ -41,7 +41,7 @@ diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
 index 35b92d8..5b981db 100644
 --- a/fs/proc/task_mmu.c
 +++ b/fs/proc/task_mmu.c
-@@ -291,7 +291,10 @@ static int is_stack(struct proc_maps_private *priv,
+@@ -291,7 +291,10 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
  	const char *name = NULL;
  
  	if (file) {
@@ -233,7 +233,7 @@ index 1af87c1..95b0ff4 100644
  	unlink_anon_vmas(new);
   out_free_mpol:
  	mpol_put(vma_policy(new));
-@@ -2703,7 +2703,7 @@ int vm_munmap(unsigned long start, size_t len)
+@@ -2703,7 +2703,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
  	struct vm_area_struct *vma;
  	unsigned long populate = 0;
  	unsigned long ret = -EINVAL;
@@ -242,7 +242,7 @@ index 1af87c1..95b0ff4 100644
  
  	pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt.\n",
  		     current->comm, current->pid);
-@@ -2778,10 +2778,27 @@ int vm_munmap(unsigned long start, size_t len)
+@@ -2778,10 +2778,27 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
  		}
  	}
  
diff --git a/debian/patches/features/all/aufs4/aufs4-standalone.patch b/debian/patches/features/all/aufs4/aufs4-standalone.patch
index de345e530..4533f4fca 100644
--- a/debian/patches/features/all/aufs4/aufs4-standalone.patch
+++ b/debian/patches/features/all/aufs4/aufs4-standalone.patch
@@ -1,7 +1,7 @@
 From: J. R. Okajima <hooanon05@yahoo.co.jp>
-Date: Fri Dec 16 21:28:57 2016 +0900
+Date: Sat Feb 4 13:13:07 2017 +0900
 Subject: aufs4.9 standalone patch
-Origin: https://github.com/sfjro/aufs4-standalone/tree/0d8e71c28da317ec6371b6b95b46a70cefe13777
+Origin: https://github.com/sfjro/aufs4-standalone/tree/ecd2bfe6f46f36658c9aef74fc43ac40e47f8438
 Bug-Debian: https://bugs.debian.org/541828
 
 Patch headers added by debian/patches/features/all/aufs4/gen-patch
@@ -252,11 +252,23 @@ index 28160a7..98c1902 100644
  
  /**
   * splice_direct_to_actor - splices data directly between two non-pipes
+diff --git a/fs/sync.c b/fs/sync.c
+index 7a5fa3f..c9b9d46 100644
+--- a/fs/sync.c
++++ b/fs/sync.c
+@@ -38,6 +38,7 @@ int __sync_filesystem(struct super_block *sb, int wait)
+ 		sb->s_op->sync_fs(sb, wait);
+ 	return __sync_blockdev(sb->s_bdev, wait);
+ }
++EXPORT_SYMBOL_GPL(__sync_filesystem);
+ 
+ /*
+  * Write out and wait upon all dirty data associated with this
 diff --git a/fs/xattr.c b/fs/xattr.c
 index 2d13b4e..41c2bcd 100644
 --- a/fs/xattr.c
 +++ b/fs/xattr.c
-@@ -296,6 +296,7 @@ int __vfs_setxattr_noperm(struct dentry *dentry, const char *name,
+@@ -296,6 +296,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
  	*xattr_value = value;
  	return error;
  }