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0f37d1780c
The majority of remaining references to struct xfs_defer_ops in XFS are associated with xfs_defer_add(). At this point, there are no more external xfs_defer_ops users left. All instances of xfs_defer_ops are embedded in the transaction, which means we can safely pass the transaction down to the dfops add interface. Update xfs_defer_add() to receive the transaction as a parameter. Various subsystems implement wrappers to allocate and construct the context specific data structures for the associated deferred operation type. Update these to also carry the transaction down as needed and clean up unused dfops parameters along the way. This removes most of the remaining references to struct xfs_defer_ops throughout the code and facilitates removal of the structure. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> [darrick: fix unused variable warnings with ftrace disabled] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*/
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#ifndef __XFS_DEFER_H__
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#define __XFS_DEFER_H__
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struct xfs_defer_op_type;
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struct xfs_defer_ops;
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/*
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* Save a log intent item and a list of extents, so that we can replay
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* whatever action had to happen to the extent list and file the log done
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* item.
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*/
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struct xfs_defer_pending {
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const struct xfs_defer_op_type *dfp_type; /* function pointers */
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struct list_head dfp_list; /* pending items */
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void *dfp_intent; /* log intent item */
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void *dfp_done; /* log done item */
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struct list_head dfp_work; /* work items */
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unsigned int dfp_count; /* # extent items */
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};
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/*
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* Header for deferred operation list.
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*/
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enum xfs_defer_ops_type {
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XFS_DEFER_OPS_TYPE_BMAP,
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XFS_DEFER_OPS_TYPE_REFCOUNT,
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XFS_DEFER_OPS_TYPE_RMAP,
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XFS_DEFER_OPS_TYPE_FREE,
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XFS_DEFER_OPS_TYPE_AGFL_FREE,
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XFS_DEFER_OPS_TYPE_MAX,
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};
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void xfs_defer_add(struct xfs_trans *tp, enum xfs_defer_ops_type type,
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struct list_head *h);
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int xfs_defer_finish_noroll(struct xfs_trans **tp);
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int xfs_defer_finish(struct xfs_trans **tp);
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void xfs_defer_cancel(struct xfs_trans *);
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void xfs_defer_init(struct xfs_trans *tp, struct xfs_defer_ops *dop);
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void xfs_defer_move(struct xfs_trans *dtp, struct xfs_trans *stp);
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/* Description of a deferred type. */
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struct xfs_defer_op_type {
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enum xfs_defer_ops_type type;
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unsigned int max_items;
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void (*abort_intent)(void *);
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void *(*create_done)(struct xfs_trans *, void *, unsigned int);
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int (*finish_item)(struct xfs_trans *, struct list_head *, void *,
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void **);
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void (*finish_cleanup)(struct xfs_trans *, void *, int);
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void (*cancel_item)(struct list_head *);
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int (*diff_items)(void *, struct list_head *, struct list_head *);
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void *(*create_intent)(struct xfs_trans *, uint);
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void (*log_item)(struct xfs_trans *, void *, struct list_head *);
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};
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void xfs_defer_init_op_type(const struct xfs_defer_op_type *type);
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#endif /* __XFS_DEFER_H__ */
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