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
9 struct xfs_mount;
10 struct xfs_perag;
11
12 struct 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
45 int 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 */
49 struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
50 void xfs_inode_free(struct xfs_inode *ip);
51
52 void xfs_reclaim_worker(struct work_struct *work);
53
54 void xfs_reclaim_inodes(struct xfs_mount *mp);
55 long xfs_reclaim_inodes_count(struct xfs_mount *mp);
56 long xfs_reclaim_inodes_nr(struct xfs_mount *mp, unsigned long nr_to_scan);
57
58 void xfs_inode_mark_reclaimable(struct xfs_inode *ip);
59
60 int 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);
63 int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int iwalk_flags);
64 int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_icwalk *icm);
65 int xfs_blockgc_flush_all(struct xfs_mount *mp);
66
67 void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
68 void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
69
70 void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
71 void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
72
73 void xfs_blockgc_worker(struct work_struct *work);
74 void xfs_blockgc_stop(struct xfs_mount *mp);
75 void xfs_blockgc_start(struct xfs_mount *mp);
76
77 void xfs_inodegc_worker(struct work_struct *work);
78 void xfs_inodegc_push(struct xfs_mount *mp);
79 int xfs_inodegc_flush(struct xfs_mount *mp);
80 void xfs_inodegc_stop(struct xfs_mount *mp);
81 void xfs_inodegc_start(struct xfs_mount *mp);
82 int xfs_inodegc_register_shrinker(struct xfs_mount *mp);
83
84 #endif
85
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