Remove Docker fix from sunxi-next due to mainline 4.5.2 release

patch/kernel/sunxi-next/docker-overlay.patch

@@ -1,119 +0,0 @@
-diff --git a/fs/ext4/file.c b/fs/ext4/file.c
-index 4cd318f31cbe..38847f38b34a 100644
---- a/fs/ext4/file.c
-+++ b/fs/ext4/file.c
-@@ -335,7 +335,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
- 	struct super_block *sb = inode->i_sb;
- 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
- 	struct vfsmount *mnt = filp->f_path.mnt;
--	struct inode *dir = filp->f_path.dentry->d_parent->d_inode;
-+	struct dentry *dir;
- 	struct path path;
- 	char buf[64], *cp;
- 	int ret;
-@@ -379,14 +379,18 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
- 		if (ext4_encryption_info(inode) == NULL)
- 			return -ENOKEY;
- 	}
--	if (ext4_encrypted_inode(dir) &&
--	    !ext4_is_child_context_consistent_with_parent(dir, inode)) {
-+
-+	dir = dget_parent(file_dentry(filp));
-+	if (ext4_encrypted_inode(d_inode(dir)) &&
-+	    !ext4_is_child_context_consistent_with_parent(d_inode(dir), inode)) {
- 		ext4_warning(inode->i_sb,
- 			     "Inconsistent encryption contexts: %lu/%lu\n",
--			     (unsigned long) dir->i_ino,
-+			     (unsigned long) d_inode(dir)->i_ino,
- 			     (unsigned long) inode->i_ino);
-+		dput(dir);
- 		return -EPERM;
- 	}
-+	dput(dir);
- 	/*
- 	 * Set up the jbd2_inode if we are opening the inode for
- 	 * writing and the journal is present
-diff --git a/fs/open.c b/fs/open.c
-index 55bdc75e2172..6326c11eda78 100644
---- a/fs/open.c
-+++ b/fs/open.c
-@@ -831,6 +831,17 @@ char *file_path(struct file *filp, char *buf, int buflen)
- }
- EXPORT_SYMBOL(file_path);
- 
-+struct dentry *file_dentry(const struct file *file)
-+{
-+	struct dentry *dentry = file->f_path.dentry;
-+
-+	if (likely(d_inode(dentry) == file_inode(file)))
-+		return dentry;
-+	else
-+		return dentry->d_op->d_native_dentry(dentry, file_inode(file));
-+}
-+EXPORT_SYMBOL(file_dentry);
-+
- /**
-  * vfs_open - open the file at the given path
-  * @path: path to open
-diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
-index 619ad4b016d2..5142aa2034c4 100644
---- a/fs/overlayfs/super.c
-+++ b/fs/overlayfs/super.c
-@@ -336,14 +336,30 @@ static int ovl_dentry_weak_revalidate(struct dentry *dentry, unsigned int flags)
- 	return ret;
- }
- 
-+static struct dentry *ovl_d_native_dentry(struct dentry *dentry,
-+					 struct inode *inode)
-+{
-+	struct ovl_entry *oe = dentry->d_fsdata;
-+	struct dentry *realentry = ovl_upperdentry_dereference(oe);
-+
-+	if (realentry && inode == d_inode(realentry))
-+		return realentry;
-+	realentry = __ovl_dentry_lower(oe);
-+	if (realentry && inode == d_inode(realentry))
-+		return realentry;
-+	BUG();
-+}
-+
- static const struct dentry_operations ovl_dentry_operations = {
- 	.d_release = ovl_dentry_release,
- 	.d_select_inode = ovl_d_select_inode,
-+	.d_native_dentry = ovl_d_native_dentry,
- };
- 
- static const struct dentry_operations ovl_reval_dentry_operations = {
- 	.d_release = ovl_dentry_release,
- 	.d_select_inode = ovl_d_select_inode,
-+	.d_native_dentry = ovl_d_native_dentry,
- 	.d_revalidate = ovl_dentry_revalidate,
- 	.d_weak_revalidate = ovl_dentry_weak_revalidate,
- };
-diff --git a/include/linux/dcache.h b/include/linux/dcache.h
-index c4b5f4b3f8f8..99ecb6de636c 100644
---- a/include/linux/dcache.h
-+++ b/include/linux/dcache.h
-@@ -161,6 +161,7 @@ struct dentry_operations {
- 	struct vfsmount *(*d_automount)(struct path *);
- 	int (*d_manage)(struct dentry *, bool);
- 	struct inode *(*d_select_inode)(struct dentry *, unsigned);
-+	struct dentry *(*d_native_dentry)(struct dentry *, struct inode *);
- } ____cacheline_aligned;
- 
- /*
-diff --git a/include/linux/fs.h b/include/linux/fs.h
-index ae681002100a..1091d9f43271 100644
---- a/include/linux/fs.h
-+++ b/include/linux/fs.h
-@@ -1234,6 +1234,8 @@ static inline struct inode *file_inode(const struct file *f)
- 	return f->f_inode;
- }
- 
-+extern struct dentry *file_dentry(const struct file *file);
-+
- static inline int locks_lock_file_wait(struct file *filp, struct file_lock *fl)
- {
- 	return locks_lock_inode_wait(file_inode(filp), fl);
-
-