2005-04-16 15:20:36 -07:00
|
|
|
/*
|
2005-11-02 14:58:39 +11:00
|
|
|
* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
|
|
|
|
|
* All Rights Reserved.
|
2005-04-16 15:20:36 -07:00
|
|
|
*
|
2005-11-02 14:58:39 +11:00
|
|
|
* This program is free software; you can redistribute it and/or
|
|
|
|
|
* modify it under the terms of the GNU General Public License as
|
2005-04-16 15:20:36 -07:00
|
|
|
* published by the Free Software Foundation.
|
|
|
|
|
*
|
2005-11-02 14:58:39 +11:00
|
|
|
* 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.
|
2005-04-16 15:20:36 -07:00
|
|
|
*
|
2005-11-02 14:58:39 +11:00
|
|
|
* 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
|
2005-04-16 15:20:36 -07:00
|
|
|
*/
|
|
|
|
|
#ifndef __XFS_BUF_ITEM_H__
|
|
|
|
|
#define __XFS_BUF_ITEM_H__
|
|
|
|
|
|
2013-08-12 20:49:24 +10:00
|
|
|
/* kernel only definitions */
|
2012-06-22 18:50:07 +10:00
|
|
|
|
2013-08-12 20:49:24 +10:00
|
|
|
/* buf log item flags */
|
2005-04-16 15:20:36 -07:00
|
|
|
#define XFS_BLI_HOLD 0x01
|
|
|
|
|
#define XFS_BLI_DIRTY 0x02
|
|
|
|
|
#define XFS_BLI_STALE 0x04
|
|
|
|
|
#define XFS_BLI_LOGGED 0x08
|
|
|
|
|
#define XFS_BLI_INODE_ALLOC_BUF 0x10
|
|
|
|
|
#define XFS_BLI_STALE_INODE 0x20
|
2010-05-20 23:19:42 +10:00
|
|
|
#define XFS_BLI_INODE_BUF 0x40
|
2013-06-27 16:04:52 +10:00
|
|
|
#define XFS_BLI_ORDERED 0x80
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2009-12-14 23:14:59 +00:00
|
|
|
#define XFS_BLI_FLAGS \
|
|
|
|
|
{ XFS_BLI_HOLD, "HOLD" }, \
|
|
|
|
|
{ XFS_BLI_DIRTY, "DIRTY" }, \
|
|
|
|
|
{ XFS_BLI_STALE, "STALE" }, \
|
|
|
|
|
{ XFS_BLI_LOGGED, "LOGGED" }, \
|
|
|
|
|
{ XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \
|
2010-05-20 23:19:42 +10:00
|
|
|
{ XFS_BLI_STALE_INODE, "STALE_INODE" }, \
|
2013-06-27 16:04:52 +10:00
|
|
|
{ XFS_BLI_INODE_BUF, "INODE_BUF" }, \
|
|
|
|
|
{ XFS_BLI_ORDERED, "ORDERED" }
|
2009-12-14 23:14:59 +00:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
|
struct xfs_buf;
|
|
|
|
|
struct xfs_mount;
|
|
|
|
|
struct xfs_buf_log_item;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This is the in core log item structure used to track information
|
|
|
|
|
* needed to log buffers. It tracks how many times the lock has been
|
|
|
|
|
* locked, and which 128 byte chunks of the buffer are dirty.
|
|
|
|
|
*/
|
|
|
|
|
typedef struct xfs_buf_log_item {
|
|
|
|
|
xfs_log_item_t bli_item; /* common item structure */
|
|
|
|
|
struct xfs_buf *bli_buf; /* real buffer pointer */
|
|
|
|
|
unsigned int bli_flags; /* misc flags */
|
|
|
|
|
unsigned int bli_recur; /* lock recursion count */
|
|
|
|
|
atomic_t bli_refcount; /* cnt of tp refs */
|
2012-06-22 18:50:12 +10:00
|
|
|
int bli_format_count; /* count of headers */
|
|
|
|
|
struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */
|
2012-12-04 17:18:03 -06:00
|
|
|
struct xfs_buf_log_format __bli_format; /* embedded in-log header */
|
2005-04-16 15:20:36 -07:00
|
|
|
} xfs_buf_log_item_t;
|
|
|
|
|
|
|
|
|
|
void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
|
|
|
|
|
void xfs_buf_item_relse(struct xfs_buf *);
|
|
|
|
|
void xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
|
|
|
|
|
uint xfs_buf_item_dirty(xfs_buf_log_item_t *);
|
|
|
|
|
void xfs_buf_attach_iodone(struct xfs_buf *,
|
|
|
|
|
void(*)(struct xfs_buf *, xfs_log_item_t *),
|
|
|
|
|
xfs_log_item_t *);
|
|
|
|
|
void xfs_buf_iodone_callbacks(struct xfs_buf *);
|
2010-06-23 18:11:15 +10:00
|
|
|
void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2013-08-12 20:49:24 +10:00
|
|
|
extern kmem_zone_t *xfs_buf_item_zone;
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
|
#endif /* __XFS_BUF_ITEM_H__ */
|
