146 lines
4.9 KiB
C
146 lines
4.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*/
|
|
|
|
#ifndef __XFS_TRANS_H__
|
|
#define __XFS_TRANS_H__
|
|
|
|
struct xfs_mount;
|
|
struct xfs_buftarg;
|
|
struct xfs_buf;
|
|
struct xfs_buf_map;
|
|
|
|
/*
|
|
* Userspace Transaction interface
|
|
*/
|
|
|
|
typedef struct xfs_log_item {
|
|
struct list_head li_trans; /* transaction list */
|
|
xfs_lsn_t li_lsn; /* last on-disk lsn */
|
|
struct xfs_mount *li_mountp; /* ptr to fs mount */
|
|
uint li_type; /* item type */
|
|
unsigned long li_flags; /* misc flags */
|
|
} xfs_log_item_t;
|
|
|
|
#define XFS_LI_DIRTY 3 /* log item dirty in transaction */
|
|
|
|
typedef struct xfs_inode_log_item {
|
|
xfs_log_item_t ili_item; /* common portion */
|
|
struct xfs_inode *ili_inode; /* inode pointer */
|
|
unsigned short ili_lock_flags; /* lock flags */
|
|
unsigned int ili_last_fields; /* fields when flushed*/
|
|
unsigned int ili_fields; /* fields to be logged */
|
|
unsigned int ili_fsync_fields; /* ignored by userspace */
|
|
} xfs_inode_log_item_t;
|
|
|
|
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; /* recursion count */
|
|
xfs_buf_log_format_t __bli_format; /* in-log header */
|
|
} xfs_buf_log_item_t;
|
|
|
|
#define XFS_BLI_DIRTY (1<<0)
|
|
#define XFS_BLI_HOLD (1<<1)
|
|
#define XFS_BLI_STALE (1<<2)
|
|
#define XFS_BLI_INODE_ALLOC_BUF (1<<3)
|
|
|
|
typedef struct xfs_qoff_logitem {
|
|
xfs_log_item_t qql_item; /* common portion */
|
|
struct xfs_qoff_logitem *qql_start_lip; /* qoff-start logitem, if any */
|
|
xfs_qoff_logformat_t qql_format; /* logged structure */
|
|
} xfs_qoff_logitem_t;
|
|
|
|
#define XFS_DEFER_OPS_NR_INODES 2 /* join up to two inodes */
|
|
#define XFS_DEFER_OPS_NR_BUFS 2 /* join up to two buffers */
|
|
|
|
typedef struct xfs_trans {
|
|
unsigned int t_log_res; /* amt of log space resvd */
|
|
unsigned int t_log_count; /* count for perm log res */
|
|
unsigned int t_blk_res; /* # of blocks resvd */
|
|
xfs_fsblock_t t_firstblock; /* first block allocated */
|
|
struct xfs_mount *t_mountp; /* ptr to fs mount struct */
|
|
unsigned int t_blk_res_used; /* # of resvd blocks used */
|
|
unsigned int t_flags; /* misc flags */
|
|
long t_icount_delta; /* superblock icount change */
|
|
long t_ifree_delta; /* superblock ifree change */
|
|
long t_fdblocks_delta; /* superblock fdblocks chg */
|
|
long t_frextents_delta; /* superblock freextents chg */
|
|
struct list_head t_items; /* first log item desc chunk */
|
|
struct list_head t_dfops; /* deferred operations */
|
|
} xfs_trans_t;
|
|
|
|
void xfs_trans_init(struct xfs_mount *);
|
|
int xfs_trans_roll(struct xfs_trans **);
|
|
|
|
int libxfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp,
|
|
uint blocks, uint rtextents, uint flags,
|
|
struct xfs_trans **tpp);
|
|
int libxfs_trans_alloc_rollable(struct xfs_mount *mp, uint blocks,
|
|
struct xfs_trans **tpp);
|
|
int libxfs_trans_alloc_empty(struct xfs_mount *mp, struct xfs_trans **tpp);
|
|
int libxfs_trans_commit(struct xfs_trans *);
|
|
void libxfs_trans_cancel(struct xfs_trans *);
|
|
|
|
/* cancel dfops associated with a transaction */
|
|
void xfs_defer_cancel(struct xfs_trans *);
|
|
|
|
struct xfs_buf *libxfs_trans_getsb(struct xfs_trans *, struct xfs_mount *);
|
|
|
|
void libxfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
|
|
void libxfs_trans_log_inode (struct xfs_trans *, struct xfs_inode *,
|
|
uint);
|
|
int libxfs_trans_roll_inode (struct xfs_trans **, struct xfs_inode *);
|
|
|
|
void libxfs_trans_brelse(struct xfs_trans *, struct xfs_buf *);
|
|
void libxfs_trans_binval(struct xfs_trans *, struct xfs_buf *);
|
|
void libxfs_trans_bjoin(struct xfs_trans *, struct xfs_buf *);
|
|
void libxfs_trans_bhold(struct xfs_trans *, struct xfs_buf *);
|
|
void libxfs_trans_bhold_release(struct xfs_trans *, struct xfs_buf *);
|
|
void libxfs_trans_dirty_buf(struct xfs_trans *, struct xfs_buf *);
|
|
void libxfs_trans_log_buf(struct xfs_trans *, struct xfs_buf *,
|
|
uint, uint);
|
|
bool libxfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
|
|
|
|
struct xfs_buf *libxfs_trans_get_buf_map(struct xfs_trans *tp,
|
|
struct xfs_buftarg *btp,
|
|
struct xfs_buf_map *map, int nmaps,
|
|
xfs_buf_flags_t flags);
|
|
|
|
int libxfs_trans_read_buf_map(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
struct xfs_buftarg *btp,
|
|
struct xfs_buf_map *map, int nmaps,
|
|
xfs_buf_flags_t flags, struct xfs_buf **bpp,
|
|
const struct xfs_buf_ops *ops);
|
|
static inline struct xfs_buf *
|
|
libxfs_trans_get_buf(
|
|
struct xfs_trans *tp,
|
|
struct xfs_buftarg *btp,
|
|
xfs_daddr_t blkno,
|
|
int numblks,
|
|
uint flags)
|
|
{
|
|
DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
|
|
return libxfs_trans_get_buf_map(tp, btp, &map, 1, flags);
|
|
}
|
|
|
|
static inline int
|
|
libxfs_trans_read_buf(
|
|
struct xfs_mount *mp,
|
|
struct xfs_trans *tp,
|
|
struct xfs_buftarg *btp,
|
|
xfs_daddr_t blkno,
|
|
int numblks,
|
|
xfs_buf_flags_t flags,
|
|
struct xfs_buf **bpp,
|
|
const struct xfs_buf_ops *ops)
|
|
{
|
|
DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
|
|
return libxfs_trans_read_buf_map(mp, tp, btp, &map, 1, flags, bpp, ops);
|
|
}
|
|
|
|
#endif /* __XFS_TRANS_H__ */
|