mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 05:02:12 +00:00
02b100fb83
There's no need to bundle a pointer to the defer op type into the defer op control structure. Instead, store the defer op type enum, which enables us to shorten some of the lines. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Oracle. All Rights Reserved.
|
|
* Author: Darrick J. Wong <darrick.wong@oracle.com>
|
|
*/
|
|
#ifndef __XFS_DEFER_H__
|
|
#define __XFS_DEFER_H__
|
|
|
|
struct xfs_defer_op_type;
|
|
|
|
/*
|
|
* Header for deferred operation list.
|
|
*/
|
|
enum xfs_defer_ops_type {
|
|
XFS_DEFER_OPS_TYPE_BMAP,
|
|
XFS_DEFER_OPS_TYPE_REFCOUNT,
|
|
XFS_DEFER_OPS_TYPE_RMAP,
|
|
XFS_DEFER_OPS_TYPE_FREE,
|
|
XFS_DEFER_OPS_TYPE_AGFL_FREE,
|
|
XFS_DEFER_OPS_TYPE_MAX,
|
|
};
|
|
|
|
/*
|
|
* Save a log intent item and a list of extents, so that we can replay
|
|
* whatever action had to happen to the extent list and file the log done
|
|
* item.
|
|
*/
|
|
struct xfs_defer_pending {
|
|
struct list_head dfp_list; /* pending items */
|
|
struct list_head dfp_work; /* work items */
|
|
void *dfp_intent; /* log intent item */
|
|
void *dfp_done; /* log done item */
|
|
unsigned int dfp_count; /* # extent items */
|
|
enum xfs_defer_ops_type dfp_type;
|
|
};
|
|
|
|
void xfs_defer_add(struct xfs_trans *tp, enum xfs_defer_ops_type type,
|
|
struct list_head *h);
|
|
int xfs_defer_finish_noroll(struct xfs_trans **tp);
|
|
int xfs_defer_finish(struct xfs_trans **tp);
|
|
void xfs_defer_cancel(struct xfs_trans *);
|
|
void xfs_defer_move(struct xfs_trans *dtp, struct xfs_trans *stp);
|
|
|
|
/* Description of a deferred type. */
|
|
struct xfs_defer_op_type {
|
|
void (*abort_intent)(void *);
|
|
void *(*create_done)(struct xfs_trans *, void *, unsigned int);
|
|
int (*finish_item)(struct xfs_trans *, struct list_head *, void *,
|
|
void **);
|
|
void (*finish_cleanup)(struct xfs_trans *, void *, int);
|
|
void (*cancel_item)(struct list_head *);
|
|
int (*diff_items)(void *, struct list_head *, struct list_head *);
|
|
void *(*create_intent)(struct xfs_trans *, uint);
|
|
void (*log_item)(struct xfs_trans *, void *, struct list_head *);
|
|
unsigned int max_items;
|
|
};
|
|
|
|
extern const struct xfs_defer_op_type xfs_bmap_update_defer_type;
|
|
extern const struct xfs_defer_op_type xfs_refcount_update_defer_type;
|
|
extern const struct xfs_defer_op_type xfs_rmap_update_defer_type;
|
|
extern const struct xfs_defer_op_type xfs_extent_free_defer_type;
|
|
extern const struct xfs_defer_op_type xfs_agfl_free_defer_type;
|
|
|
|
#endif /* __XFS_DEFER_H__ */
|