Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/kernel/fs/ext2/symlink.c b/kernel/fs/ext2/symlink.c
new file mode 100644
index 000000000..20608f17c
--- /dev/null
+++ b/kernel/fs/ext2/symlink.c
@@ -0,0 +1,54 @@
+/*
+ *  linux/fs/ext2/symlink.c
+ *
+ * Only fast symlinks left here - the rest is done by generic code. AV, 1999
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/symlink.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext2 symlink handling code
+ */
+
+#include "ext2.h"
+#include "xattr.h"
+#include <linux/namei.h>
+
+static void *ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	struct ext2_inode_info *ei = EXT2_I(d_inode(dentry));
+	nd_set_link(nd, (char *)ei->i_data);
+	return NULL;
+}
+
+const struct inode_operations ext2_symlink_inode_operations = {
+	.readlink	= generic_readlink,
+	.follow_link	= page_follow_link_light,
+	.put_link	= page_put_link,
+	.setattr	= ext2_setattr,
+#ifdef CONFIG_EXT2_FS_XATTR
+	.setxattr	= generic_setxattr,
+	.getxattr	= generic_getxattr,
+	.listxattr	= ext2_listxattr,
+	.removexattr	= generic_removexattr,
+#endif
+};
+ 
+const struct inode_operations ext2_fast_symlink_inode_operations = {
+	.readlink	= generic_readlink,
+	.follow_link	= ext2_follow_link,
+	.setattr	= ext2_setattr,
+#ifdef CONFIG_EXT2_FS_XATTR
+	.setxattr	= generic_setxattr,
+	.getxattr	= generic_getxattr,
+	.listxattr	= ext2_listxattr,
+	.removexattr	= generic_removexattr,
+#endif
+};