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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/*
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