]>
Commit | Line | Data |
---|---|---|
328970de | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
fa60ce2c | 2 | /* |
ccd979bd MF |
3 | * inode.h |
4 | * | |
5 | * Function prototypes | |
6 | * | |
7 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
8 | */ |
9 | ||
10 | #ifndef OCFS2_INODE_H | |
11 | #define OCFS2_INODE_H | |
12 | ||
83418978 MF |
13 | #include "extent_map.h" |
14 | ||
ccd979bd MF |
15 | /* OCFS2 Inode Private Data */ |
16 | struct ocfs2_inode_info | |
17 | { | |
18 | u64 ip_blkno; | |
19 | ||
20 | struct ocfs2_lock_res ip_rw_lockres; | |
e63aecb6 | 21 | struct ocfs2_lock_res ip_inode_lockres; |
50008630 | 22 | struct ocfs2_lock_res ip_open_lockres; |
ccd979bd MF |
23 | |
24 | /* protects allocation changes on this inode. */ | |
25 | struct rw_semaphore ip_alloc_sem; | |
26 | ||
cf1d6c76 TY |
27 | /* protects extended attribute changes on this inode */ |
28 | struct rw_semaphore ip_xattr_sem; | |
29 | ||
ccd979bd MF |
30 | /* These fields are protected by ip_lock */ |
31 | spinlock_t ip_lock; | |
32 | u32 ip_open_count; | |
ccd979bd | 33 | struct list_head ip_io_markers; |
83fd9c7f | 34 | u32 ip_clusters; |
ccd979bd | 35 | |
83fd9c7f | 36 | u16 ip_dyn_features; |
251b6ecc | 37 | struct mutex ip_io_mutex; |
ccd979bd | 38 | u32 ip_flags; /* see below */ |
ca4d147e | 39 | u32 ip_attr; /* inode attributes */ |
ccd979bd | 40 | |
4506cfb6 RD |
41 | /* Record unwritten extents during direct io. */ |
42 | struct list_head ip_unwritten_list; | |
43 | ||
ccd979bd MF |
44 | /* protected by recovery_lock. */ |
45 | struct inode *ip_next_orphan; | |
46 | ||
ccd979bd | 47 | struct ocfs2_caching_info ip_metadata_cache; |
83418978 | 48 | struct ocfs2_extent_map ip_extent_map; |
ccd979bd | 49 | struct inode vfs_inode; |
2b4e30fb | 50 | struct jbd2_inode ip_jinode; |
13821151 | 51 | |
83fd9c7f GR |
52 | u32 ip_dir_start_lookup; |
53 | ||
13821151 TM |
54 | /* Only valid if the inode is the dir. */ |
55 | u32 ip_last_used_slot; | |
56 | u64 ip_last_used_group; | |
5e98d492 | 57 | u32 ip_dir_lock_gen; |
4fe370af MF |
58 | |
59 | struct ocfs2_alloc_reservation ip_la_data_resv; | |
2931cdcb DW |
60 | |
61 | /* | |
62 | * Transactions that contain inode's metadata needed to complete | |
63 | * fsync and fdatasync, respectively. | |
64 | */ | |
65 | tid_t i_sync_tid; | |
66 | tid_t i_datasync_tid; | |
1c92ec67 JK |
67 | |
68 | struct dquot *i_dquot[MAXQUOTAS]; | |
ccd979bd MF |
69 | }; |
70 | ||
71 | /* | |
72 | * Flags for the ip_flags field | |
73 | */ | |
74 | /* System file inodes */ | |
75 | #define OCFS2_INODE_SYSTEM_FILE 0x00000001 | |
76 | #define OCFS2_INODE_JOURNAL 0x00000002 | |
77 | #define OCFS2_INODE_BITMAP 0x00000004 | |
78 | /* This inode has been wiped from disk */ | |
79 | #define OCFS2_INODE_DELETED 0x00000008 | |
ccd979bd MF |
80 | /* Has the inode been orphaned on another node? |
81 | * | |
82 | * This hints to ocfs2_drop_inode that it should clear i_nlink before | |
83 | * continuing. | |
84 | * | |
85 | * We *only* set this on unlink vote from another node. If the inode | |
86 | * was locally orphaned, then we're sure of the state and don't need | |
87 | * to twiddle i_nlink later - it's either zero or not depending on | |
88 | * whether our unlink succeeded. Otherwise we got this from a node | |
89 | * whose intention was to orphan the inode, however he may have | |
90 | * crashed, failed etc, so we let ocfs2_drop_inode zero the value and | |
91 | * rely on ocfs2_delete_inode to sort things out under the proper | |
92 | * cluster locks. | |
93 | */ | |
7bf619c1 | 94 | #define OCFS2_INODE_MAYBE_ORPHANED 0x00000010 |
ccd979bd | 95 | /* Does someone have the file open O_DIRECT */ |
7bf619c1 | 96 | #define OCFS2_INODE_OPEN_DIRECT 0x00000020 |
d4cd1871 | 97 | /* Tell the inode wipe code it's not in orphan dir */ |
7bf619c1 | 98 | #define OCFS2_INODE_SKIP_ORPHAN_DIR 0x00000040 |
93d911fc JQ |
99 | /* Entry in orphan dir with 'dio-' prefix */ |
100 | #define OCFS2_INODE_DIO_ORPHAN_ENTRY 0x00000080 | |
ccd979bd MF |
101 | |
102 | static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode) | |
103 | { | |
104 | return container_of(inode, struct ocfs2_inode_info, vfs_inode); | |
105 | } | |
106 | ||
107 | #define INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags & OCFS2_INODE_JOURNAL) | |
108 | #define SET_INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags |= OCFS2_INODE_JOURNAL) | |
109 | ||
f5e54d6e | 110 | extern const struct address_space_operations ocfs2_aops; |
6e5a3d75 | 111 | extern const struct ocfs2_caching_operations ocfs2_inode_caching_ops; |
ccd979bd | 112 | |
8cb471e8 JB |
113 | static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode) |
114 | { | |
115 | return &OCFS2_I(inode)->ip_metadata_cache; | |
116 | } | |
117 | ||
066d92dc | 118 | void ocfs2_evict_inode(struct inode *inode); |
45321ac5 | 119 | int ocfs2_drop_inode(struct inode *inode); |
24c19ef4 MF |
120 | |
121 | /* Flags for ocfs2_iget() */ | |
5fa0613e JK |
122 | #define OCFS2_FI_FLAG_SYSFILE 0x1 |
123 | #define OCFS2_FI_FLAG_ORPHAN_RECOVERY 0x2 | |
a860f6eb GH |
124 | #define OCFS2_FI_FLAG_FILECHECK_CHK 0x4 |
125 | #define OCFS2_FI_FLAG_FILECHECK_FIX 0x8 | |
126 | ||
6ca497a8 | 127 | struct inode *ocfs2_ilookup(struct super_block *sb, u64 feoff); |
5fa0613e JK |
128 | struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags, |
129 | int sysfile_type); | |
ccd979bd | 130 | int ocfs2_inode_revalidate(struct dentry *dentry); |
b657c95c JB |
131 | void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, |
132 | int create_ino); | |
ccd979bd MF |
133 | void ocfs2_sync_blockdev(struct super_block *sb); |
134 | void ocfs2_refresh_inode(struct inode *inode, | |
135 | struct ocfs2_dinode *fe); | |
1fabe148 | 136 | int ocfs2_mark_inode_dirty(handle_t *handle, |
ccd979bd MF |
137 | struct inode *inode, |
138 | struct buffer_head *bh); | |
ccd979bd | 139 | |
ca4d147e | 140 | void ocfs2_set_inode_flags(struct inode *inode); |
6e4b0d56 | 141 | void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi); |
ca4d147e | 142 | |
8110b073 MF |
143 | static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode) |
144 | { | |
145 | int c_to_s_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits - 9; | |
146 | ||
7fa05c6e | 147 | return (blkcnt_t)OCFS2_I(inode)->ip_clusters << c_to_s_bits; |
8110b073 MF |
148 | } |
149 | ||
b657c95c JB |
150 | /* Validate that a bh contains a valid inode */ |
151 | int ocfs2_validate_inode_block(struct super_block *sb, | |
152 | struct buffer_head *bh); | |
153 | /* | |
154 | * Read an inode block into *bh. If *bh is NULL, a bh will be allocated. | |
155 | * This is a cached read. The inode will be validated with | |
156 | * ocfs2_validate_inode_block(). | |
157 | */ | |
158 | int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh); | |
159 | /* The same, but can be passed OCFS2_BH_* flags */ | |
160 | int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh, | |
161 | int flags); | |
6136ca5f JB |
162 | |
163 | static inline struct ocfs2_inode_info *cache_info_to_inode(struct ocfs2_caching_info *ci) | |
164 | { | |
165 | return container_of(ci, struct ocfs2_inode_info, ip_metadata_cache); | |
166 | } | |
167 | ||
84e40080 DW |
168 | /* Does this inode have the reflink flag set? */ |
169 | static inline bool ocfs2_is_refcount_inode(struct inode *inode) | |
170 | { | |
171 | return (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); | |
172 | } | |
173 | ||
ccd979bd | 174 | #endif /* OCFS2_INODE_H */ |