From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
 fs/xfs/xfs_log.h | 184 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 fs/xfs/xfs_log.h

(limited to 'fs/xfs/xfs_log.h')

diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
new file mode 100644
index 00000000..2c622bed
--- /dev/null
+++ b/fs/xfs/xfs_log.h
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2000-2003,2005 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_LOG_H__
+#define __XFS_LOG_H__
+
+/* get lsn fields */
+#define CYCLE_LSN(lsn) ((uint)((lsn)>>32))
+#define BLOCK_LSN(lsn) ((uint)(lsn))
+
+/* this is used in a spot where we might otherwise double-endian-flip */
+#define CYCLE_LSN_DISK(lsn) (((__be32 *)&(lsn))[0])
+
+#ifdef __KERNEL__
+/*
+ * By comparing each component, we don't have to worry about extra
+ * endian issues in treating two 32 bit numbers as one 64 bit number
+ */
+static inline xfs_lsn_t	_lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
+{
+	if (CYCLE_LSN(lsn1) != CYCLE_LSN(lsn2))
+		return (CYCLE_LSN(lsn1)<CYCLE_LSN(lsn2))? -999 : 999;
+
+	if (BLOCK_LSN(lsn1) != BLOCK_LSN(lsn2))
+		return (BLOCK_LSN(lsn1)<BLOCK_LSN(lsn2))? -999 : 999;
+
+	return 0;
+}
+
+#define	XFS_LSN_CMP(x,y) _lsn_cmp(x,y)
+
+/*
+ * Macros, structures, prototypes for interface to the log manager.
+ */
+
+/*
+ * Flags to xfs_log_done()
+ */
+#define XFS_LOG_REL_PERM_RESERV	0x1
+
+/*
+ * Flags to xfs_log_force()
+ *
+ *	XFS_LOG_SYNC:	Synchronous force in-core log to disk
+ */
+#define XFS_LOG_SYNC		0x1
+
+#endif	/* __KERNEL__ */
+
+
+/* Log Clients */
+#define XFS_TRANSACTION		0x69
+#define XFS_VOLUME		0x2
+#define XFS_LOG			0xaa
+
+
+/* Region types for iovec's i_type */
+#define XLOG_REG_TYPE_BFORMAT		1
+#define XLOG_REG_TYPE_BCHUNK		2
+#define XLOG_REG_TYPE_EFI_FORMAT	3
+#define XLOG_REG_TYPE_EFD_FORMAT	4
+#define XLOG_REG_TYPE_IFORMAT		5
+#define XLOG_REG_TYPE_ICORE		6
+#define XLOG_REG_TYPE_IEXT		7
+#define XLOG_REG_TYPE_IBROOT		8
+#define XLOG_REG_TYPE_ILOCAL		9
+#define XLOG_REG_TYPE_IATTR_EXT		10
+#define XLOG_REG_TYPE_IATTR_BROOT	11
+#define XLOG_REG_TYPE_IATTR_LOCAL	12
+#define XLOG_REG_TYPE_QFORMAT		13
+#define XLOG_REG_TYPE_DQUOT		14
+#define XLOG_REG_TYPE_QUOTAOFF		15
+#define XLOG_REG_TYPE_LRHEADER		16
+#define XLOG_REG_TYPE_UNMOUNT		17
+#define XLOG_REG_TYPE_COMMIT		18
+#define XLOG_REG_TYPE_TRANSHDR		19
+#define XLOG_REG_TYPE_MAX		19
+
+typedef struct xfs_log_iovec {
+	void		*i_addr;	/* beginning address of region */
+	int		i_len;		/* length in bytes of region */
+	uint		i_type;		/* type of region */
+} xfs_log_iovec_t;
+
+struct xfs_log_vec {
+	struct xfs_log_vec	*lv_next;	/* next lv in build list */
+	int			lv_niovecs;	/* number of iovecs in lv */
+	struct xfs_log_iovec	*lv_iovecp;	/* iovec array */
+	struct xfs_log_item	*lv_item;	/* owner */
+	char			*lv_buf;	/* formatted buffer */
+	int			lv_buf_len;	/* size of formatted buffer */
+};
+
+/*
+ * Structure used to pass callback function and the function's argument
+ * to the log manager.
+ */
+typedef struct xfs_log_callback {
+	struct xfs_log_callback	*cb_next;
+	void			(*cb_func)(void *, int);
+	void			*cb_arg;
+} xfs_log_callback_t;
+
+
+#ifdef __KERNEL__
+/* Log manager interfaces */
+struct xfs_mount;
+struct xlog_in_core;
+struct xlog_ticket;
+struct xfs_log_item;
+struct xfs_item_ops;
+struct xfs_trans;
+
+void	xfs_log_item_init(struct xfs_mount	*mp,
+			struct xfs_log_item	*item,
+			int			type,
+			const struct xfs_item_ops *ops);
+
+xfs_lsn_t xfs_log_done(struct xfs_mount *mp,
+		       struct xlog_ticket *ticket,
+		       struct xlog_in_core **iclog,
+		       uint		flags);
+int	  _xfs_log_force(struct xfs_mount *mp,
+			 uint		flags,
+			 int		*log_forced);
+void	  xfs_log_force(struct xfs_mount	*mp,
+			uint			flags);
+int	  _xfs_log_force_lsn(struct xfs_mount *mp,
+			     xfs_lsn_t		lsn,
+			     uint		flags,
+			     int		*log_forced);
+void	  xfs_log_force_lsn(struct xfs_mount	*mp,
+			    xfs_lsn_t		lsn,
+			    uint		flags);
+int	  xfs_log_mount(struct xfs_mount	*mp,
+			struct xfs_buftarg	*log_target,
+			xfs_daddr_t		start_block,
+			int		 	num_bblocks);
+int	  xfs_log_mount_finish(struct xfs_mount *mp);
+xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
+void	  xfs_log_space_wake(struct xfs_mount *mp);
+int	  xfs_log_notify(struct xfs_mount	*mp,
+			 struct xlog_in_core	*iclog,
+			 xfs_log_callback_t	*callback_entry);
+int	  xfs_log_release_iclog(struct xfs_mount *mp,
+			 struct xlog_in_core	 *iclog);
+int	  xfs_log_reserve(struct xfs_mount *mp,
+			  int		   length,
+			  int		   count,
+			  struct xlog_ticket **ticket,
+			  __uint8_t	   clientid,
+			  bool		   permanent,
+			  uint		   t_type);
+int	  xfs_log_regrant(struct xfs_mount *mp, struct xlog_ticket *tic);
+int	  xfs_log_unmount_write(struct xfs_mount *mp);
+void      xfs_log_unmount(struct xfs_mount *mp);
+int	  xfs_log_force_umount(struct xfs_mount *mp, int logerror);
+int	  xfs_log_need_covered(struct xfs_mount *mp);
+
+void	  xlog_iodone(struct xfs_buf *);
+
+struct xlog_ticket *xfs_log_ticket_get(struct xlog_ticket *ticket);
+void	  xfs_log_ticket_put(struct xlog_ticket *ticket);
+
+int	xfs_log_commit_cil(struct xfs_mount *mp, struct xfs_trans *tp,
+				xfs_lsn_t *commit_lsn, int flags);
+bool	xfs_log_item_in_current_chkpt(struct xfs_log_item *lip);
+
+#endif
+#endif	/* __XFS_LOG_H__ */
-- 
cgit