1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 5 */
 6#ifndef XFS_SYNC_H
 7#define XFS_SYNC_H 1
 8
 9struct xfs_mount;
10struct xfs_perag;
11
12struct xfs_eofblocks {
13	__u32		eof_flags;
14	kuid_t		eof_uid;
15	kgid_t		eof_gid;
16	prid_t		eof_prid;
17	__u64		eof_min_file_size;
18};
19
20/*
21 * tags for inode radix tree
22 */
23#define XFS_ICI_NO_TAG		(-1)	/* special flag for an untagged lookup
24					   in xfs_inode_walk */
25#define XFS_ICI_RECLAIM_TAG	0	/* inode is to be reclaimed */
26#define XFS_ICI_EOFBLOCKS_TAG	1	/* inode has blocks beyond EOF */
27#define XFS_ICI_COWBLOCKS_TAG	2	/* inode can have cow blocks to gc */
28
29/*
30 * Flags for xfs_iget()
31 */
32#define XFS_IGET_CREATE		0x1
33#define XFS_IGET_UNTRUSTED	0x2
34#define XFS_IGET_DONTCACHE	0x4
35#define XFS_IGET_INCORE		0x8	/* don't read from disk or reinit */
36
37/*
38 * flags for AG inode iterator
39 */
40#define XFS_INODE_WALK_INEW_WAIT	0x1	/* wait on new inodes */
41
42int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
43	     uint flags, uint lock_flags, xfs_inode_t **ipp);
44
45/* recovery needs direct inode allocation capability */
46struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
47void xfs_inode_free(struct xfs_inode *ip);
48
49void xfs_reclaim_worker(struct work_struct *work);
50
51void xfs_reclaim_inodes(struct xfs_mount *mp);
52int xfs_reclaim_inodes_count(struct xfs_mount *mp);
53long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
54
55void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
56
57void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
58void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
59int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
60int xfs_inode_free_quota_eofblocks(struct xfs_inode *ip);
61void xfs_eofblocks_worker(struct work_struct *);
62void xfs_queue_eofblocks(struct xfs_mount *);
63
64void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
65void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
66int xfs_icache_free_cowblocks(struct xfs_mount *, struct xfs_eofblocks *);
67int xfs_inode_free_quota_cowblocks(struct xfs_inode *ip);
68void xfs_cowblocks_worker(struct work_struct *);
69void xfs_queue_cowblocks(struct xfs_mount *);
70
71int xfs_inode_walk(struct xfs_mount *mp, int iter_flags,
72	int (*execute)(struct xfs_inode *ip, void *args),
73	void *args, int tag);
74
75int xfs_icache_inode_is_allocated(struct xfs_mount *mp, struct xfs_trans *tp,
76				  xfs_ino_t ino, bool *inuse);
77
78void xfs_stop_block_reaping(struct xfs_mount *mp);
79void xfs_start_block_reaping(struct xfs_mount *mp);
80
81#endif