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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 | |
4fb6e8ad CH |
35 | /* |
36 | * tags for inode radix tree | |
37 | */ | |
38 | #define XFS_ICI_NO_TAG (-1) /* special flag for an untagged lookup | |
39 | in xfs_inode_ag_iterator */ | |
40 | #define XFS_ICI_RECLAIM_TAG 0 /* inode is to be reclaimed */ | |
41 | #define XFS_ICI_EOFBLOCKS_TAG 1 /* inode has blocks beyond EOF */ | |
83104d44 | 42 | #define XFS_ICI_COWBLOCKS_TAG 2 /* inode can have cow blocks to gc */ |
4fb6e8ad | 43 | |
7bb85ef3 DC |
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 | ||
33479e05 DC |
51 | int 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 | ||
638f4416 DC |
54 | /* recovery needs direct inode allocation capability */ |
55 | struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino); | |
56 | void xfs_inode_free(struct xfs_inode *ip); | |
57 | ||
33c7a2bc | 58 | void xfs_reclaim_worker(struct work_struct *work); |
a167b17e | 59 | |
abc10647 | 60 | int xfs_reclaim_inodes(struct xfs_mount *mp, int mode); |
8daaa831 | 61 | int xfs_reclaim_inodes_count(struct xfs_mount *mp); |
0a234c6d | 62 | long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan); |
fce08f2f | 63 | |
396beb85 | 64 | void xfs_inode_set_reclaim_tag(struct xfs_inode *ip); |
fe588ed3 | 65 | |
27b52867 BF |
66 | void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip); |
67 | void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip); | |
8ca149de | 68 | int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *); |
dc06f398 | 69 | int xfs_inode_free_quota_eofblocks(struct xfs_inode *ip); |
579b62fa | 70 | void xfs_eofblocks_worker(struct work_struct *); |
fa5a4f57 | 71 | void xfs_queue_eofblocks(struct xfs_mount *); |
27b52867 | 72 | |
83104d44 DW |
73 | void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip); |
74 | void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip); | |
75 | int xfs_icache_free_cowblocks(struct xfs_mount *, struct xfs_eofblocks *); | |
76 | int xfs_inode_free_quota_cowblocks(struct xfs_inode *ip); | |
77 | void xfs_cowblocks_worker(struct work_struct *); | |
78 | ||
fe588ed3 | 79 | int xfs_inode_ag_iterator(struct xfs_mount *mp, |
e0094008 | 80 | int (*execute)(struct xfs_inode *ip, int flags, void *args), |
a454f742 BF |
81 | int flags, void *args); |
82 | int xfs_inode_ag_iterator_tag(struct xfs_mount *mp, | |
e0094008 | 83 | int (*execute)(struct xfs_inode *ip, int flags, void *args), |
a454f742 | 84 | int flags, void *args, int tag); |
9bf729c0 | 85 | |
b9fe5052 DE |
86 | static inline int |
87 | xfs_fs_eofblocks_from_user( | |
88 | struct xfs_fs_eofblocks *src, | |
89 | struct xfs_eofblocks *dst) | |
90 | { | |
91 | if (src->eof_version != XFS_EOFBLOCKS_VERSION) | |
2451337d | 92 | return -EINVAL; |
b9fe5052 DE |
93 | |
94 | if (src->eof_flags & ~XFS_EOF_FLAGS_VALID) | |
2451337d | 95 | return -EINVAL; |
b9fe5052 DE |
96 | |
97 | if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) || | |
98 | memchr_inv(src->pad64, 0, sizeof(src->pad64))) | |
2451337d | 99 | return -EINVAL; |
b9fe5052 DE |
100 | |
101 | dst->eof_flags = src->eof_flags; | |
102 | dst->eof_prid = src->eof_prid; | |
103 | dst->eof_min_file_size = src->eof_min_file_size; | |
104 | ||
105 | dst->eof_uid = INVALID_UID; | |
106 | if (src->eof_flags & XFS_EOF_FLAGS_UID) { | |
107 | dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid); | |
108 | if (!uid_valid(dst->eof_uid)) | |
2451337d | 109 | return -EINVAL; |
b9fe5052 DE |
110 | } |
111 | ||
112 | dst->eof_gid = INVALID_GID; | |
113 | if (src->eof_flags & XFS_EOF_FLAGS_GID) { | |
114 | dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid); | |
115 | if (!gid_valid(dst->eof_gid)) | |
2451337d | 116 | return -EINVAL; |
b9fe5052 DE |
117 | } |
118 | return 0; | |
119 | } | |
120 | ||
fe4fa4b8 | 121 | #endif |