]>
Commit | Line | Data |
---|---|---|
328970de | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
ccd979bd MF |
2 | /* -*- mode: c; c-basic-offset: 8; -*- |
3 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
4 | * | |
5 | * inode.h | |
6 | * | |
7 | * Function prototypes | |
8 | * | |
9 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
10 | */ |
11 | ||
12 | #ifndef OCFS2_INODE_H | |
13 | #define OCFS2_INODE_H | |
14 | ||
83418978 MF |
15 | #include "extent_map.h" |
16 | ||
ccd979bd MF |
17 | /* OCFS2 Inode Private Data */ |
18 | struct ocfs2_inode_info | |
19 | { | |
20 | u64 ip_blkno; | |
21 | ||
22 | struct ocfs2_lock_res ip_rw_lockres; | |
e63aecb6 | 23 | struct ocfs2_lock_res ip_inode_lockres; |
50008630 | 24 | struct ocfs2_lock_res ip_open_lockres; |
ccd979bd MF |
25 | |
26 | /* protects allocation changes on this inode. */ | |
27 | struct rw_semaphore ip_alloc_sem; | |
28 | ||
cf1d6c76 TY |
29 | /* protects extended attribute changes on this inode */ |
30 | struct rw_semaphore ip_xattr_sem; | |
31 | ||
ccd979bd MF |
32 | /* These fields are protected by ip_lock */ |
33 | spinlock_t ip_lock; | |
34 | u32 ip_open_count; | |
ccd979bd | 35 | struct list_head ip_io_markers; |
83fd9c7f | 36 | u32 ip_clusters; |
ccd979bd | 37 | |
83fd9c7f | 38 | u16 ip_dyn_features; |
251b6ecc | 39 | struct mutex ip_io_mutex; |
ccd979bd | 40 | u32 ip_flags; /* see below */ |
ca4d147e | 41 | u32 ip_attr; /* inode attributes */ |
ccd979bd | 42 | |
4506cfb6 RD |
43 | /* Record unwritten extents during direct io. */ |
44 | struct list_head ip_unwritten_list; | |
45 | ||
ccd979bd MF |
46 | /* protected by recovery_lock. */ |
47 | struct inode *ip_next_orphan; | |
48 | ||
ccd979bd | 49 | struct ocfs2_caching_info ip_metadata_cache; |
83418978 | 50 | struct ocfs2_extent_map ip_extent_map; |
ccd979bd | 51 | struct inode vfs_inode; |
2b4e30fb | 52 | struct jbd2_inode ip_jinode; |
13821151 | 53 | |
83fd9c7f GR |
54 | u32 ip_dir_start_lookup; |
55 | ||
13821151 TM |
56 | /* Only valid if the inode is the dir. */ |
57 | u32 ip_last_used_slot; | |
58 | u64 ip_last_used_group; | |
5e98d492 | 59 | u32 ip_dir_lock_gen; |
4fe370af MF |
60 | |
61 | struct ocfs2_alloc_reservation ip_la_data_resv; | |
2931cdcb DW |
62 | |
63 | /* | |
64 | * Transactions that contain inode's metadata needed to complete | |
65 | * fsync and fdatasync, respectively. | |
66 | */ | |
67 | tid_t i_sync_tid; | |
68 | tid_t i_datasync_tid; | |
1c92ec67 JK |
69 | |
70 | struct dquot *i_dquot[MAXQUOTAS]; | |
ccd979bd MF |
71 | }; |
72 | ||
73 | /* | |
74 | * Flags for the ip_flags field | |
75 | */ | |
76 | /* System file inodes */ | |
77 | #define OCFS2_INODE_SYSTEM_FILE 0x00000001 | |
78 | #define OCFS2_INODE_JOURNAL 0x00000002 | |
79 | #define OCFS2_INODE_BITMAP 0x00000004 | |
80 | /* This inode has been wiped from disk */ | |
81 | #define OCFS2_INODE_DELETED 0x00000008 | |
ccd979bd MF |
82 | /* Has the inode been orphaned on another node? |
83 | * | |
84 | * This hints to ocfs2_drop_inode that it should clear i_nlink before | |
85 | * continuing. | |
86 | * | |
87 | * We *only* set this on unlink vote from another node. If the inode | |
88 | * was locally orphaned, then we're sure of the state and don't need | |
89 | * to twiddle i_nlink later - it's either zero or not depending on | |
90 | * whether our unlink succeeded. Otherwise we got this from a node | |
91 | * whose intention was to orphan the inode, however he may have | |
92 | * crashed, failed etc, so we let ocfs2_drop_inode zero the value and | |
93 | * rely on ocfs2_delete_inode to sort things out under the proper | |
94 | * cluster locks. | |
95 | */ | |
7bf619c1 | 96 | #define OCFS2_INODE_MAYBE_ORPHANED 0x00000010 |
ccd979bd | 97 | /* Does someone have the file open O_DIRECT */ |
7bf619c1 | 98 | #define OCFS2_INODE_OPEN_DIRECT 0x00000020 |
d4cd1871 | 99 | /* Tell the inode wipe code it's not in orphan dir */ |
7bf619c1 | 100 | #define OCFS2_INODE_SKIP_ORPHAN_DIR 0x00000040 |
93d911fc JQ |
101 | /* Entry in orphan dir with 'dio-' prefix */ |
102 | #define OCFS2_INODE_DIO_ORPHAN_ENTRY 0x00000080 | |
ccd979bd MF |
103 | |
104 | static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode) | |
105 | { | |
106 | return container_of(inode, struct ocfs2_inode_info, vfs_inode); | |
107 | } | |
108 | ||
109 | #define INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags & OCFS2_INODE_JOURNAL) | |
110 | #define SET_INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags |= OCFS2_INODE_JOURNAL) | |
111 | ||
f5e54d6e | 112 | extern const struct address_space_operations ocfs2_aops; |
6e5a3d75 | 113 | extern const struct ocfs2_caching_operations ocfs2_inode_caching_ops; |
ccd979bd | 114 | |
8cb471e8 JB |
115 | static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode) |
116 | { | |
117 | return &OCFS2_I(inode)->ip_metadata_cache; | |
118 | } | |
119 | ||
066d92dc | 120 | void ocfs2_evict_inode(struct inode *inode); |
45321ac5 | 121 | int ocfs2_drop_inode(struct inode *inode); |
24c19ef4 MF |
122 | |
123 | /* Flags for ocfs2_iget() */ | |
5fa0613e JK |
124 | #define OCFS2_FI_FLAG_SYSFILE 0x1 |
125 | #define OCFS2_FI_FLAG_ORPHAN_RECOVERY 0x2 | |
a860f6eb GH |
126 | #define OCFS2_FI_FLAG_FILECHECK_CHK 0x4 |
127 | #define OCFS2_FI_FLAG_FILECHECK_FIX 0x8 | |
128 | ||
6ca497a8 | 129 | struct inode *ocfs2_ilookup(struct super_block *sb, u64 feoff); |
5fa0613e JK |
130 | struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags, |
131 | int sysfile_type); | |
ccd979bd | 132 | int ocfs2_inode_revalidate(struct dentry *dentry); |
b657c95c JB |
133 | void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, |
134 | int create_ino); | |
ccd979bd MF |
135 | void ocfs2_sync_blockdev(struct super_block *sb); |
136 | void ocfs2_refresh_inode(struct inode *inode, | |
137 | struct ocfs2_dinode *fe); | |
1fabe148 | 138 | int ocfs2_mark_inode_dirty(handle_t *handle, |
ccd979bd MF |
139 | struct inode *inode, |
140 | struct buffer_head *bh); | |
ccd979bd | 141 | |
ca4d147e | 142 | void ocfs2_set_inode_flags(struct inode *inode); |
6e4b0d56 | 143 | void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi); |
ca4d147e | 144 | |
8110b073 MF |
145 | static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode) |
146 | { | |
147 | int c_to_s_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits - 9; | |
148 | ||
7fa05c6e | 149 | return (blkcnt_t)OCFS2_I(inode)->ip_clusters << c_to_s_bits; |
8110b073 MF |
150 | } |
151 | ||
b657c95c JB |
152 | /* Validate that a bh contains a valid inode */ |
153 | int ocfs2_validate_inode_block(struct super_block *sb, | |
154 | struct buffer_head *bh); | |
155 | /* | |
156 | * Read an inode block into *bh. If *bh is NULL, a bh will be allocated. | |
157 | * This is a cached read. The inode will be validated with | |
158 | * ocfs2_validate_inode_block(). | |
159 | */ | |
160 | int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh); | |
161 | /* The same, but can be passed OCFS2_BH_* flags */ | |
162 | int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh, | |
163 | int flags); | |
6136ca5f JB |
164 | |
165 | static inline struct ocfs2_inode_info *cache_info_to_inode(struct ocfs2_caching_info *ci) | |
166 | { | |
167 | return container_of(ci, struct ocfs2_inode_info, ip_metadata_cache); | |
168 | } | |
169 | ||
84e40080 DW |
170 | /* Does this inode have the reflink flag set? */ |
171 | static inline bool ocfs2_is_refcount_inode(struct inode *inode) | |
172 | { | |
173 | return (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); | |
174 | } | |
175 | ||
ccd979bd | 176 | #endif /* OCFS2_INODE_H */ |