1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6 #ifndef __XFS_INODE_ITEM_H__
7 #define __XFS_INODE_ITEM_H__
8
9 /* kernel only definitions */
10
11 struct xfs_buf;
12 struct xfs_bmbt_rec;
13 struct xfs_inode;
14 struct xfs_mount;
15
16 struct xfs_inode_log_item {
17 struct xfs_log_item ili_item; /* common portion */
18 struct xfs_inode *ili_inode; /* inode ptr */
19 unsigned short ili_lock_flags; /* inode lock flags */
20 unsigned int ili_dirty_flags; /* dirty in current tx */
21 /*
22 * The ili_lock protects the interactions between the dirty state and
23 * the flush state of the inode log item. This allows us to do atomic
24 * modifications of multiple state fields without having to hold a
25 * specific inode lock to serialise them.
26 *
27 * We need atomic changes between inode dirtying, inode flushing and
28 * inode completion, but these all hold different combinations of
29 * ILOCK and IFLUSHING and hence we need some other method of
30 * serialising updates to the flush state.
31 */
32 spinlock_t ili_lock; /* flush state lock */
33 unsigned int ili_last_fields; /* fields when flushed */
34 unsigned int ili_fields; /* fields to be logged */
35 unsigned int ili_fsync_fields; /* logged since last fsync */
36 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
37 xfs_csn_t ili_commit_seq; /* last transaction commit */
38 };
39
40 static inline int xfs_inode_clean(struct xfs_inode *ip)
41 {
42 return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL);
43 }
44
45 extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
46 extern void xfs_inode_item_destroy(struct xfs_inode *);
47 extern void xfs_iflush_abort(struct xfs_inode *);
48 extern void xfs_iflush_shutdown_abort(struct xfs_inode *);
49 extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
50 struct xfs_inode_log_format *);
51
52 extern struct kmem_cache *xfs_ili_cache;
53
54 #endif /* __XFS_INODE_ITEM_H__ */
55
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