mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 01:50:53 +07:00
0f22f9d0cd
Rename the bli_format structure to __bli_format to avoid accidently confusing them with the bli_formats pointer. Signed-off-by: Mark Tinguely <tinguely@sgi.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2000-2001,2005 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_BUF_ITEM_H__
|
|
#define __XFS_BUF_ITEM_H__
|
|
|
|
extern kmem_zone_t *xfs_buf_item_zone;
|
|
|
|
/*
|
|
* This flag indicates that the buffer contains on disk inodes
|
|
* and requires special recovery handling.
|
|
*/
|
|
#define XFS_BLF_INODE_BUF 0x1
|
|
/*
|
|
* This flag indicates that the buffer should not be replayed
|
|
* during recovery because its blocks are being freed.
|
|
*/
|
|
#define XFS_BLF_CANCEL 0x2
|
|
/*
|
|
* This flag indicates that the buffer contains on disk
|
|
* user or group dquots and may require special recovery handling.
|
|
*/
|
|
#define XFS_BLF_UDQUOT_BUF 0x4
|
|
#define XFS_BLF_PDQUOT_BUF 0x8
|
|
#define XFS_BLF_GDQUOT_BUF 0x10
|
|
|
|
#define XFS_BLF_CHUNK 128
|
|
#define XFS_BLF_SHIFT 7
|
|
#define BIT_TO_WORD_SHIFT 5
|
|
#define NBWORD (NBBY * sizeof(unsigned int))
|
|
|
|
/*
|
|
* This is the structure used to lay out a buf log item in the
|
|
* log. The data map describes which 128 byte chunks of the buffer
|
|
* have been logged.
|
|
*/
|
|
#define XFS_BLF_DATAMAP_SIZE ((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD)
|
|
|
|
typedef struct xfs_buf_log_format {
|
|
unsigned short blf_type; /* buf log item type indicator */
|
|
unsigned short blf_size; /* size of this item */
|
|
ushort blf_flags; /* misc state */
|
|
ushort blf_len; /* number of blocks in this buf */
|
|
__int64_t blf_blkno; /* starting blkno of this buf */
|
|
unsigned int blf_map_size; /* used size of data bitmap in words */
|
|
unsigned int blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */
|
|
} xfs_buf_log_format_t;
|
|
|
|
/*
|
|
* buf log item flags
|
|
*/
|
|
#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
|
|
#define XFS_BLI_INODE_BUF 0x40
|
|
|
|
#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" }, \
|
|
{ XFS_BLI_STALE_INODE, "STALE_INODE" }, \
|
|
{ XFS_BLI_INODE_BUF, "INODE_BUF" }
|
|
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
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 */
|
|
int bli_format_count; /* count of headers */
|
|
struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */
|
|
struct xfs_buf_log_format __bli_format; /* embedded in-log header */
|
|
} 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 *);
|
|
void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __XFS_BUF_ITEM_H__ */
|