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_icwalk {
13	__u32		icw_flags;
14	kuid_t		icw_uid;
15	kgid_t		icw_gid;
16	prid_t		icw_prid;
17	__u64		icw_min_file_size;
18	long		icw_scan_limit;
19};
20
21/* Flags that reflect xfs_fs_eofblocks functionality. */
22#define XFS_ICWALK_FLAG_SYNC		(1U << 0) /* sync/wait mode scan */
23#define XFS_ICWALK_FLAG_UID		(1U << 1) /* filter by uid */
24#define XFS_ICWALK_FLAG_GID		(1U << 2) /* filter by gid */
25#define XFS_ICWALK_FLAG_PRID		(1U << 3) /* filter by project id */
26#define XFS_ICWALK_FLAG_MINFILESIZE	(1U << 4) /* filter by min file size */
27
28#define XFS_ICWALK_FLAGS_VALID		(XFS_ICWALK_FLAG_SYNC | \
29					 XFS_ICWALK_FLAG_UID | \
30					 XFS_ICWALK_FLAG_GID | \
31					 XFS_ICWALK_FLAG_PRID | \
32					 XFS_ICWALK_FLAG_MINFILESIZE)
33
34/*
35 * Flags for xfs_iget()
36 */
37#define XFS_IGET_CREATE		(1U << 0)
38#define XFS_IGET_UNTRUSTED	(1U << 1)
39#define XFS_IGET_DONTCACHE	(1U << 2)
40/* don't read from disk or reinit */
41#define XFS_IGET_INCORE		(1U << 3)
42/* Return -EAGAIN immediately if the inode is unavailable. */
43#define XFS_IGET_NORETRY	(1U << 4)
44
45int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
46	     uint flags, uint lock_flags, xfs_inode_t **ipp);
47
48/* recovery needs direct inode allocation capability */
49struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
50void xfs_inode_free(struct xfs_inode *ip);
51
52void xfs_reclaim_worker(struct work_struct *work);
53
54void xfs_reclaim_inodes(struct xfs_mount *mp);
55long xfs_reclaim_inodes_count(struct xfs_mount *mp);
56long xfs_reclaim_inodes_nr(struct xfs_mount *mp, unsigned long nr_to_scan);
57
58void xfs_inode_mark_reclaimable(struct xfs_inode *ip);
59
60int xfs_blockgc_free_dquots(struct xfs_mount *mp, struct xfs_dquot *udqp,
61		struct xfs_dquot *gdqp, struct xfs_dquot *pdqp,
62		unsigned int iwalk_flags);
63int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int iwalk_flags);
64int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_icwalk *icm);
65int xfs_blockgc_flush_all(struct xfs_mount *mp);
66
67void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
68void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
69
70void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
71void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
72
73void xfs_blockgc_worker(struct work_struct *work);
74void xfs_blockgc_stop(struct xfs_mount *mp);
75void xfs_blockgc_start(struct xfs_mount *mp);
76
77void xfs_inodegc_worker(struct work_struct *work);
78void xfs_inodegc_push(struct xfs_mount *mp);
79int xfs_inodegc_flush(struct xfs_mount *mp);
80void xfs_inodegc_stop(struct xfs_mount *mp);
81void xfs_inodegc_start(struct xfs_mount *mp);
82int xfs_inodegc_register_shrinker(struct xfs_mount *mp);
83
84#endif
85