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a167b17e DC |
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 | */ | |
fe4fa4b8 DC |
18 | #ifndef XFS_SYNC_H |
19 | #define XFS_SYNC_H 1 | |
20 | ||
a167b17e | 21 | struct xfs_mount; |
fcafb71b | 22 | struct xfs_perag; |
a167b17e | 23 | |
b9fe5052 DE |
24 | struct 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 | ||
8b5403a6 CH |
32 | #define SYNC_WAIT 0x0001 /* wait for i/o to complete */ |
33 | #define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */ | |
a167b17e | 34 | |
7bb85ef3 DC |
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 | ||
33479e05 DC |
42 | int 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 | ||
638f4416 DC |
45 | /* recovery needs direct inode allocation capability */ |
46 | struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino); | |
47 | void xfs_inode_free(struct xfs_inode *ip); | |
48 | ||
33c7a2bc | 49 | void xfs_reclaim_worker(struct work_struct *work); |
a167b17e | 50 | |
abc10647 | 51 | int xfs_reclaim_inodes(struct xfs_mount *mp, int mode); |
8daaa831 | 52 | int xfs_reclaim_inodes_count(struct xfs_mount *mp); |
0a234c6d | 53 | long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan); |
fce08f2f | 54 | |
396beb85 | 55 | void xfs_inode_set_reclaim_tag(struct xfs_inode *ip); |
fe588ed3 | 56 | |
27b52867 BF |
57 | void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip); |
58 | void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip); | |
8ca149de | 59 | int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *); |
579b62fa | 60 | void xfs_eofblocks_worker(struct work_struct *); |
27b52867 | 61 | |
fe588ed3 | 62 | int xfs_inode_ag_iterator(struct xfs_mount *mp, |
e0094008 | 63 | int (*execute)(struct xfs_inode *ip, int flags, void *args), |
a454f742 BF |
64 | int flags, void *args); |
65 | int xfs_inode_ag_iterator_tag(struct xfs_mount *mp, | |
e0094008 | 66 | int (*execute)(struct xfs_inode *ip, int flags, void *args), |
a454f742 | 67 | int flags, void *args, int tag); |
9bf729c0 | 68 | |
b9fe5052 DE |
69 | static inline int |
70 | xfs_fs_eofblocks_from_user( | |
71 | struct xfs_fs_eofblocks *src, | |
72 | struct xfs_eofblocks *dst) | |
73 | { | |
74 | if (src->eof_version != XFS_EOFBLOCKS_VERSION) | |
2451337d | 75 | return -EINVAL; |
b9fe5052 DE |
76 | |
77 | if (src->eof_flags & ~XFS_EOF_FLAGS_VALID) | |
2451337d | 78 | return -EINVAL; |
b9fe5052 DE |
79 | |
80 | if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) || | |
81 | memchr_inv(src->pad64, 0, sizeof(src->pad64))) | |
2451337d | 82 | return -EINVAL; |
b9fe5052 DE |
83 | |
84 | dst->eof_flags = src->eof_flags; | |
85 | dst->eof_prid = src->eof_prid; | |
86 | dst->eof_min_file_size = src->eof_min_file_size; | |
87 | ||
88 | dst->eof_uid = INVALID_UID; | |
89 | if (src->eof_flags & XFS_EOF_FLAGS_UID) { | |
90 | dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid); | |
91 | if (!uid_valid(dst->eof_uid)) | |
2451337d | 92 | return -EINVAL; |
b9fe5052 DE |
93 | } |
94 | ||
95 | dst->eof_gid = INVALID_GID; | |
96 | if (src->eof_flags & XFS_EOF_FLAGS_GID) { | |
97 | dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid); | |
98 | if (!gid_valid(dst->eof_gid)) | |
2451337d | 99 | return -EINVAL; |
b9fe5052 DE |
100 | } |
101 | return 0; | |
102 | } | |
103 | ||
fe4fa4b8 | 104 | #endif |