mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 08:53:41 +00:00
77d61fe45e
Provide a mechanism for higher levels to create BUI/BUD items, submit them to the log, and a stub function to deal with recovered BUI items. These parts will be connected to the rmapbt in a later patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
280 lines
10 KiB
C
280 lines
10 KiB
C
/*
|
|
* Copyright (c) 2000-2002,2005 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_TRANS_H__
|
|
#define __XFS_TRANS_H__
|
|
|
|
/* kernel only transaction subsystem defines */
|
|
|
|
struct xfs_buf;
|
|
struct xfs_buftarg;
|
|
struct xfs_efd_log_item;
|
|
struct xfs_efi_log_item;
|
|
struct xfs_inode;
|
|
struct xfs_item_ops;
|
|
struct xfs_log_iovec;
|
|
struct xfs_log_item_desc;
|
|
struct xfs_mount;
|
|
struct xfs_trans;
|
|
struct xfs_trans_res;
|
|
struct xfs_dquot_acct;
|
|
struct xfs_busy_extent;
|
|
struct xfs_rud_log_item;
|
|
struct xfs_rui_log_item;
|
|
struct xfs_btree_cur;
|
|
struct xfs_cui_log_item;
|
|
struct xfs_cud_log_item;
|
|
struct xfs_defer_ops;
|
|
struct xfs_bui_log_item;
|
|
|
|
typedef struct xfs_log_item {
|
|
struct list_head li_ail; /* AIL pointers */
|
|
xfs_lsn_t li_lsn; /* last on-disk lsn */
|
|
struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
|
|
struct xfs_mount *li_mountp; /* ptr to fs mount */
|
|
struct xfs_ail *li_ailp; /* ptr to AIL */
|
|
uint li_type; /* item type */
|
|
uint li_flags; /* misc flags */
|
|
struct xfs_log_item *li_bio_list; /* buffer item list */
|
|
void (*li_cb)(struct xfs_buf *,
|
|
struct xfs_log_item *);
|
|
/* buffer item iodone */
|
|
/* callback func */
|
|
const struct xfs_item_ops *li_ops; /* function list */
|
|
|
|
/* delayed logging */
|
|
struct list_head li_cil; /* CIL pointers */
|
|
struct xfs_log_vec *li_lv; /* active log vector */
|
|
struct xfs_log_vec *li_lv_shadow; /* standby vector */
|
|
xfs_lsn_t li_seq; /* CIL commit seq */
|
|
} xfs_log_item_t;
|
|
|
|
#define XFS_LI_IN_AIL 0x1
|
|
#define XFS_LI_ABORTED 0x2
|
|
|
|
#define XFS_LI_FLAGS \
|
|
{ XFS_LI_IN_AIL, "IN_AIL" }, \
|
|
{ XFS_LI_ABORTED, "ABORTED" }
|
|
|
|
struct xfs_item_ops {
|
|
void (*iop_size)(xfs_log_item_t *, int *, int *);
|
|
void (*iop_format)(xfs_log_item_t *, struct xfs_log_vec *);
|
|
void (*iop_pin)(xfs_log_item_t *);
|
|
void (*iop_unpin)(xfs_log_item_t *, int remove);
|
|
uint (*iop_push)(struct xfs_log_item *, struct list_head *);
|
|
void (*iop_unlock)(xfs_log_item_t *);
|
|
xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
|
|
void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
|
|
};
|
|
|
|
void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
|
|
int type, const struct xfs_item_ops *ops);
|
|
|
|
/*
|
|
* Return values for the iop_push() routines.
|
|
*/
|
|
#define XFS_ITEM_SUCCESS 0
|
|
#define XFS_ITEM_PINNED 1
|
|
#define XFS_ITEM_LOCKED 2
|
|
#define XFS_ITEM_FLUSHING 3
|
|
|
|
|
|
/*
|
|
* This is the structure maintained for every active transaction.
|
|
*/
|
|
typedef struct xfs_trans {
|
|
unsigned int t_magic; /* magic number */
|
|
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 */
|
|
unsigned int t_blk_res_used; /* # of resvd blocks used */
|
|
unsigned int t_rtx_res; /* # of rt extents resvd */
|
|
unsigned int t_rtx_res_used; /* # of resvd rt extents used */
|
|
struct xlog_ticket *t_ticket; /* log mgr ticket */
|
|
xfs_lsn_t t_lsn; /* log seq num of start of
|
|
* transaction. */
|
|
xfs_lsn_t t_commit_lsn; /* log seq num of end of
|
|
* transaction. */
|
|
struct xfs_mount *t_mountp; /* ptr to fs mount struct */
|
|
struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
|
|
unsigned int t_flags; /* misc flags */
|
|
int64_t t_icount_delta; /* superblock icount change */
|
|
int64_t t_ifree_delta; /* superblock ifree change */
|
|
int64_t t_fdblocks_delta; /* superblock fdblocks chg */
|
|
int64_t t_res_fdblocks_delta; /* on-disk only chg */
|
|
int64_t t_frextents_delta;/* superblock freextents chg*/
|
|
int64_t t_res_frextents_delta; /* on-disk only chg */
|
|
#if defined(DEBUG) || defined(XFS_WARN)
|
|
int64_t t_ag_freeblks_delta; /* debugging counter */
|
|
int64_t t_ag_flist_delta; /* debugging counter */
|
|
int64_t t_ag_btree_delta; /* debugging counter */
|
|
#endif
|
|
int64_t t_dblocks_delta;/* superblock dblocks change */
|
|
int64_t t_agcount_delta;/* superblock agcount change */
|
|
int64_t t_imaxpct_delta;/* superblock imaxpct change */
|
|
int64_t t_rextsize_delta;/* superblock rextsize chg */
|
|
int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
|
|
int64_t t_rblocks_delta;/* superblock rblocks change */
|
|
int64_t t_rextents_delta;/* superblocks rextents chg */
|
|
int64_t t_rextslog_delta;/* superblocks rextslog chg */
|
|
struct list_head t_items; /* log item descriptors */
|
|
struct list_head t_busy; /* list of busy extents */
|
|
unsigned long t_pflags; /* saved process flags state */
|
|
} xfs_trans_t;
|
|
|
|
/*
|
|
* XFS transaction mechanism exported interfaces that are
|
|
* actually macros.
|
|
*/
|
|
#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
|
|
|
|
#if defined(DEBUG) || defined(XFS_WARN)
|
|
#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
|
|
#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
|
|
#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
|
|
#else
|
|
#define xfs_trans_agblocks_delta(tp, d)
|
|
#define xfs_trans_agflist_delta(tp, d)
|
|
#define xfs_trans_agbtree_delta(tp, d)
|
|
#endif
|
|
|
|
/*
|
|
* XFS transaction mechanism exported interfaces.
|
|
*/
|
|
int xfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp,
|
|
uint blocks, uint rtextents, uint flags,
|
|
struct xfs_trans **tpp);
|
|
void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
|
|
|
|
struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp,
|
|
struct xfs_buftarg *target,
|
|
struct xfs_buf_map *map, int nmaps,
|
|
uint flags);
|
|
|
|
static inline struct xfs_buf *
|
|
xfs_trans_get_buf(
|
|
struct xfs_trans *tp,
|
|
struct xfs_buftarg *target,
|
|
xfs_daddr_t blkno,
|
|
int numblks,
|
|
uint flags)
|
|
{
|
|
DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
|
|
return xfs_trans_get_buf_map(tp, target, &map, 1, flags);
|
|
}
|
|
|
|
int xfs_trans_read_buf_map(struct xfs_mount *mp,
|
|
struct xfs_trans *tp,
|
|
struct xfs_buftarg *target,
|
|
struct xfs_buf_map *map, int nmaps,
|
|
xfs_buf_flags_t flags,
|
|
struct xfs_buf **bpp,
|
|
const struct xfs_buf_ops *ops);
|
|
|
|
static inline int
|
|
xfs_trans_read_buf(
|
|
struct xfs_mount *mp,
|
|
struct xfs_trans *tp,
|
|
struct xfs_buftarg *target,
|
|
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 xfs_trans_read_buf_map(mp, tp, target, &map, 1,
|
|
flags, bpp, ops);
|
|
}
|
|
|
|
struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
|
|
|
|
void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
|
|
void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
|
|
void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
|
|
void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
|
|
void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
|
|
void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
|
|
|
|
void xfs_extent_free_init_defer_op(void);
|
|
struct xfs_efd_log_item *xfs_trans_get_efd(struct xfs_trans *,
|
|
struct xfs_efi_log_item *,
|
|
uint);
|
|
int xfs_trans_free_extent(struct xfs_trans *,
|
|
struct xfs_efd_log_item *, xfs_fsblock_t,
|
|
xfs_extlen_t, struct xfs_owner_info *);
|
|
int xfs_trans_commit(struct xfs_trans *);
|
|
int __xfs_trans_roll(struct xfs_trans **, struct xfs_inode *, int *);
|
|
int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
|
|
void xfs_trans_cancel(xfs_trans_t *);
|
|
int xfs_trans_ail_init(struct xfs_mount *);
|
|
void xfs_trans_ail_destroy(struct xfs_mount *);
|
|
|
|
void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
|
|
enum xfs_blft);
|
|
void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
|
|
struct xfs_buf *src_bp);
|
|
|
|
extern kmem_zone_t *xfs_trans_zone;
|
|
extern kmem_zone_t *xfs_log_item_desc_zone;
|
|
|
|
/* rmap updates */
|
|
enum xfs_rmap_intent_type;
|
|
|
|
void xfs_rmap_update_init_defer_op(void);
|
|
struct xfs_rud_log_item *xfs_trans_get_rud(struct xfs_trans *tp,
|
|
struct xfs_rui_log_item *ruip);
|
|
int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp,
|
|
struct xfs_rud_log_item *rudp, enum xfs_rmap_intent_type type,
|
|
__uint64_t owner, int whichfork, xfs_fileoff_t startoff,
|
|
xfs_fsblock_t startblock, xfs_filblks_t blockcount,
|
|
xfs_exntst_t state, struct xfs_btree_cur **pcur);
|
|
|
|
/* refcount updates */
|
|
enum xfs_refcount_intent_type;
|
|
|
|
void xfs_refcount_update_init_defer_op(void);
|
|
struct xfs_cud_log_item *xfs_trans_get_cud(struct xfs_trans *tp,
|
|
struct xfs_cui_log_item *cuip);
|
|
int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp,
|
|
struct xfs_cud_log_item *cudp, struct xfs_defer_ops *dfops,
|
|
enum xfs_refcount_intent_type type, xfs_fsblock_t startblock,
|
|
xfs_extlen_t blockcount, xfs_fsblock_t *new_fsb,
|
|
xfs_extlen_t *new_len, struct xfs_btree_cur **pcur);
|
|
|
|
/* mapping updates */
|
|
enum xfs_bmap_intent_type;
|
|
|
|
void xfs_bmap_update_init_defer_op(void);
|
|
struct xfs_bud_log_item *xfs_trans_get_bud(struct xfs_trans *tp,
|
|
struct xfs_bui_log_item *buip);
|
|
int xfs_trans_log_finish_bmap_update(struct xfs_trans *tp,
|
|
struct xfs_bud_log_item *rudp, struct xfs_defer_ops *dfops,
|
|
enum xfs_bmap_intent_type type, struct xfs_inode *ip,
|
|
int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
|
|
xfs_filblks_t blockcount, xfs_exntst_t state);
|
|
|
|
#endif /* __XFS_TRANS_H__ */
|