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 | |