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, 60 insertions, 0 deletions

diff --git a/kernel/fs/xfs/xfs_aops.h b/kernel/fs/xfs/xfs_aops.h
new file mode 100644
index 000000000..ac644e013
--- /dev/null
+++ b/kernel/fs/xfs/xfs_aops.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2005-2006 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __XFS_AOPS_H__
+#define __XFS_AOPS_H__
+
+extern mempool_t *xfs_ioend_pool;
+
+/*
+ * Types of I/O for bmap clustering and I/O completion tracking.
+ */
+enum {
+	XFS_IO_DELALLOC,	/* covers delalloc region */
+	XFS_IO_UNWRITTEN,	/* covers allocated but uninitialized data */
+	XFS_IO_OVERWRITE,	/* covers already allocated extent */
+};
+
+#define XFS_IO_TYPES \
+	{ XFS_IO_DELALLOC,		"delalloc" }, \
+	{ XFS_IO_UNWRITTEN,		"unwritten" }, \
+	{ XFS_IO_OVERWRITE,		"overwrite" }
+
+/*
+ * xfs_ioend struct manages large extent writes for XFS.
+ * It can manage several multi-page bio's at once.
+ */
+typedef struct xfs_ioend {
+	struct xfs_ioend	*io_list;	/* next ioend in chain */
+	unsigned int		io_type;	/* delalloc / unwritten */
+	int			io_error;	/* I/O error code */
+	atomic_t		io_remaining;	/* hold count */
+	struct inode		*io_inode;	/* file being written to */
+	struct buffer_head	*io_buffer_head;/* buffer linked list head */
+	struct buffer_head	*io_buffer_tail;/* buffer linked list tail */
+	size_t			io_size;	/* size of the extent */
+	xfs_off_t		io_offset;	/* offset in the file */
+	struct work_struct	io_work;	/* xfsdatad work queue */
+	struct xfs_trans	*io_append_trans;/* xact. for size update */
+} xfs_ioend_t;
+
+extern const struct address_space_operations xfs_address_space_operations;
+extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
+
+extern void xfs_count_page_state(struct page *, int *, int *);
+
+#endif /* __XFS_AOPS_H__ */