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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};
31
32#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
33#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
34
35/*
36 * Flags for xfs_iget()
37 */
38#define XFS_IGET_CREATE 0x1
39#define XFS_IGET_UNTRUSTED 0x2
40#define XFS_IGET_DONTCACHE 0x4
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
51int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
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 *);
60void xfs_eofblocks_worker(struct work_struct *);
61
62int xfs_inode_ag_iterator(struct xfs_mount *mp,
63 int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
64 int flags, void *args),
65 int flags, void *args);
66int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
67 int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
68 int flags, void *args),
69 int flags, void *args, int tag);
70
71static inline int
72xfs_fs_eofblocks_from_user(
73 struct xfs_fs_eofblocks *src,
74 struct xfs_eofblocks *dst)
75{
76 if (src->eof_version != XFS_EOFBLOCKS_VERSION)
77 return EINVAL;
78
79 if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
80 return EINVAL;
81
82 if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
83 memchr_inv(src->pad64, 0, sizeof(src->pad64)))
84 return EINVAL;
85
86 dst->eof_flags = src->eof_flags;
87 dst->eof_prid = src->eof_prid;
88 dst->eof_min_file_size = src->eof_min_file_size;
89
90 dst->eof_uid = INVALID_UID;
91 if (src->eof_flags & XFS_EOF_FLAGS_UID) {
92 dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
93 if (!uid_valid(dst->eof_uid))
94 return EINVAL;
95 }
96
97 dst->eof_gid = INVALID_GID;
98 if (src->eof_flags & XFS_EOF_FLAGS_GID) {
99 dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
100 if (!gid_valid(dst->eof_gid))
101 return EINVAL;
102 }
103 return 0;
104}
105
106#endif
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