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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
1/*
2 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18#ifndef XFS_SYNC_H
19#define XFS_SYNC_H 1
20
21struct xfs_mount;
22struct xfs_perag;
23
24struct xfs_eofblocks {
25 __u32 eof_flags;
26 kuid_t eof_uid;
27 kgid_t eof_gid;
28 prid_t eof_prid;
29 __u64 eof_min_file_size;
30 xfs_ino_t eof_scan_owner;
31};
32
33#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
34#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
35
36/*
37 * tags for inode radix tree
38 */
39#define XFS_ICI_NO_TAG (-1) /* special flag for an untagged lookup
40 in xfs_inode_ag_iterator */
41#define XFS_ICI_RECLAIM_TAG 0 /* inode is to be reclaimed */
42#define XFS_ICI_EOFBLOCKS_TAG 1 /* inode has blocks beyond EOF */
43
44/*
45 * Flags for xfs_iget()
46 */
47#define XFS_IGET_CREATE 0x1
48#define XFS_IGET_UNTRUSTED 0x2
49#define XFS_IGET_DONTCACHE 0x4
50
51int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
52 uint flags, uint lock_flags, xfs_inode_t **ipp);
53
54/* recovery needs direct inode allocation capability */
55struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
56void xfs_inode_free(struct xfs_inode *ip);
57
58void xfs_reclaim_worker(struct work_struct *work);
59
60int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
61int xfs_reclaim_inodes_count(struct xfs_mount *mp);
62long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
63
64void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
65
66void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
67void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
68int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
69int xfs_inode_free_quota_eofblocks(struct xfs_inode *ip);
70void xfs_eofblocks_worker(struct work_struct *);
71
72int xfs_inode_ag_iterator(struct xfs_mount *mp,
73 int (*execute)(struct xfs_inode *ip, int flags, void *args),
74 int flags, void *args);
75int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
76 int (*execute)(struct xfs_inode *ip, int flags, void *args),
77 int flags, void *args, int tag);
78
79static inline int
80xfs_fs_eofblocks_from_user(
81 struct xfs_fs_eofblocks *src,
82 struct xfs_eofblocks *dst)
83{
84 if (src->eof_version != XFS_EOFBLOCKS_VERSION)
85 return -EINVAL;
86
87 if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
88 return -EINVAL;
89
90 if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
91 memchr_inv(src->pad64, 0, sizeof(src->pad64)))
92 return -EINVAL;
93
94 dst->eof_flags = src->eof_flags;
95 dst->eof_prid = src->eof_prid;
96 dst->eof_min_file_size = src->eof_min_file_size;
97 dst->eof_scan_owner = NULLFSINO;
98
99 dst->eof_uid = INVALID_UID;
100 if (src->eof_flags & XFS_EOF_FLAGS_UID) {
101 dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
102 if (!uid_valid(dst->eof_uid))
103 return -EINVAL;
104 }
105
106 dst->eof_gid = INVALID_GID;
107 if (src->eof_flags & XFS_EOF_FLAGS_GID) {
108 dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
109 if (!gid_valid(dst->eof_gid))
110 return -EINVAL;
111 }
112 return 0;
113}
114
115#endif