Thomas Gleixner | 328970d | 2019-05-24 12:04:05 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 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. |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 10 | */ |
| 11 | |
| 12 | #ifndef OCFS2_INODE_H |
| 13 | #define OCFS2_INODE_H |
| 14 | |
Mark Fasheh | 8341897 | 2007-04-23 18:53:12 -0700 | [diff] [blame] | 15 | #include "extent_map.h" |
| 16 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 17 | /* OCFS2 Inode Private Data */ |
| 18 | struct ocfs2_inode_info |
| 19 | { |
| 20 | u64 ip_blkno; |
| 21 | |
| 22 | struct ocfs2_lock_res ip_rw_lockres; |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 23 | struct ocfs2_lock_res ip_inode_lockres; |
Tiger Yang | 5000863 | 2007-03-20 16:01:38 -0700 | [diff] [blame] | 24 | struct ocfs2_lock_res ip_open_lockres; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 25 | |
| 26 | /* protects allocation changes on this inode. */ |
| 27 | struct rw_semaphore ip_alloc_sem; |
| 28 | |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 29 | /* protects extended attribute changes on this inode */ |
| 30 | struct rw_semaphore ip_xattr_sem; |
| 31 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 32 | /* These fields are protected by ip_lock */ |
| 33 | spinlock_t ip_lock; |
| 34 | u32 ip_open_count; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 35 | struct list_head ip_io_markers; |
Goldwyn Rodrigues | 83fd9c7 | 2010-06-10 17:21:36 -0500 | [diff] [blame] | 36 | u32 ip_clusters; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 37 | |
Goldwyn Rodrigues | 83fd9c7 | 2010-06-10 17:21:36 -0500 | [diff] [blame] | 38 | u16 ip_dyn_features; |
Mark Fasheh | 251b6ec | 2006-01-10 15:41:43 -0800 | [diff] [blame] | 39 | struct mutex ip_io_mutex; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 40 | u32 ip_flags; /* see below */ |
Herbert Poetzl | ca4d147 | 2006-07-03 17:27:12 -0700 | [diff] [blame] | 41 | u32 ip_attr; /* inode attributes */ |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 42 | |
Ryan Ding | 4506cfb | 2016-03-25 14:21:06 -0700 | [diff] [blame] | 43 | /* Record unwritten extents during direct io. */ |
| 44 | struct list_head ip_unwritten_list; |
| 45 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 46 | /* protected by recovery_lock. */ |
| 47 | struct inode *ip_next_orphan; |
| 48 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 49 | struct ocfs2_caching_info ip_metadata_cache; |
Mark Fasheh | 8341897 | 2007-04-23 18:53:12 -0700 | [diff] [blame] | 50 | struct ocfs2_extent_map ip_extent_map; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 51 | struct inode vfs_inode; |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 52 | struct jbd2_inode ip_jinode; |
Tao Ma | 1382115 | 2009-02-25 00:53:23 +0800 | [diff] [blame] | 53 | |
Goldwyn Rodrigues | 83fd9c7 | 2010-06-10 17:21:36 -0500 | [diff] [blame] | 54 | u32 ip_dir_start_lookup; |
| 55 | |
Tao Ma | 1382115 | 2009-02-25 00:53:23 +0800 | [diff] [blame] | 56 | /* Only valid if the inode is the dir. */ |
| 57 | u32 ip_last_used_slot; |
| 58 | u64 ip_last_used_group; |
Goldwyn Rodrigues | 5e98d49 | 2010-06-28 10:04:32 -0500 | [diff] [blame] | 59 | u32 ip_dir_lock_gen; |
Mark Fasheh | 4fe370a | 2009-12-07 13:15:40 -0800 | [diff] [blame] | 60 | |
| 61 | struct ocfs2_alloc_reservation ip_la_data_resv; |
Darrick J. Wong | 2931cdc | 2014-04-03 14:46:48 -0700 | [diff] [blame] | 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; |
Jan Kara | 1c92ec6 | 2014-09-29 15:02:51 +0200 | [diff] [blame] | 69 | |
| 70 | struct dquot *i_dquot[MAXQUOTAS]; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 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 |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 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 | */ |
Jan Kara | 7bf619c | 2014-04-03 14:46:53 -0700 | [diff] [blame] | 96 | #define OCFS2_INODE_MAYBE_ORPHANED 0x00000010 |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 97 | /* Does someone have the file open O_DIRECT */ |
Jan Kara | 7bf619c | 2014-04-03 14:46:53 -0700 | [diff] [blame] | 98 | #define OCFS2_INODE_OPEN_DIRECT 0x00000020 |
Li Dongyang | d4cd187 | 2010-04-22 16:11:19 +0800 | [diff] [blame] | 99 | /* Tell the inode wipe code it's not in orphan dir */ |
Jan Kara | 7bf619c | 2014-04-03 14:46:53 -0700 | [diff] [blame] | 100 | #define OCFS2_INODE_SKIP_ORPHAN_DIR 0x00000040 |
Joseph Qi | 93d911f | 2015-11-05 18:44:04 -0800 | [diff] [blame] | 101 | /* Entry in orphan dir with 'dio-' prefix */ |
| 102 | #define OCFS2_INODE_DIO_ORPHAN_ENTRY 0x00000080 |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 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 | |
Christoph Hellwig | f5e54d6 | 2006-06-28 04:26:44 -0700 | [diff] [blame] | 112 | extern const struct address_space_operations ocfs2_aops; |
Joel Becker | 6e5a3d7 | 2009-02-10 19:00:37 -0800 | [diff] [blame] | 113 | extern const struct ocfs2_caching_operations ocfs2_inode_caching_ops; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 114 | |
Joel Becker | 8cb471e | 2009-02-10 20:00:41 -0800 | [diff] [blame] | 115 | static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode) |
| 116 | { |
| 117 | return &OCFS2_I(inode)->ip_metadata_cache; |
| 118 | } |
| 119 | |
Al Viro | 066d92d | 2010-06-08 21:28:10 -0400 | [diff] [blame] | 120 | void ocfs2_evict_inode(struct inode *inode); |
Al Viro | 45321ac | 2010-06-07 13:43:19 -0400 | [diff] [blame] | 121 | int ocfs2_drop_inode(struct inode *inode); |
Mark Fasheh | 24c19ef | 2006-09-22 17:28:19 -0700 | [diff] [blame] | 122 | |
| 123 | /* Flags for ocfs2_iget() */ |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 124 | #define OCFS2_FI_FLAG_SYSFILE 0x1 |
| 125 | #define OCFS2_FI_FLAG_ORPHAN_RECOVERY 0x2 |
Gang He | a860f6e | 2016-03-22 14:24:24 -0700 | [diff] [blame] | 126 | #define OCFS2_FI_FLAG_FILECHECK_CHK 0x4 |
| 127 | #define OCFS2_FI_FLAG_FILECHECK_FIX 0x8 |
| 128 | |
wengang wang | 6ca497a | 2009-03-06 21:29:10 +0800 | [diff] [blame] | 129 | struct inode *ocfs2_ilookup(struct super_block *sb, u64 feoff); |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 130 | struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags, |
| 131 | int sysfile_type); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 132 | int ocfs2_inode_revalidate(struct dentry *dentry); |
Joel Becker | b657c95 | 2008-11-13 14:49:11 -0800 | [diff] [blame] | 133 | void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, |
| 134 | int create_ino); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 135 | void ocfs2_sync_blockdev(struct super_block *sb); |
| 136 | void ocfs2_refresh_inode(struct inode *inode, |
| 137 | struct ocfs2_dinode *fe); |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 138 | int ocfs2_mark_inode_dirty(handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 139 | struct inode *inode, |
| 140 | struct buffer_head *bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 141 | |
Herbert Poetzl | ca4d147 | 2006-07-03 17:27:12 -0700 | [diff] [blame] | 142 | void ocfs2_set_inode_flags(struct inode *inode); |
Jan Kara | 6e4b0d5 | 2007-04-27 11:08:01 -0700 | [diff] [blame] | 143 | void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi); |
Herbert Poetzl | ca4d147 | 2006-07-03 17:27:12 -0700 | [diff] [blame] | 144 | |
Mark Fasheh | 8110b07 | 2007-03-22 16:53:23 -0700 | [diff] [blame] | 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 | |
Joseph Qi | 7fa05c6 | 2014-10-09 15:24:56 -0700 | [diff] [blame] | 149 | return (blkcnt_t)OCFS2_I(inode)->ip_clusters << c_to_s_bits; |
Mark Fasheh | 8110b07 | 2007-03-22 16:53:23 -0700 | [diff] [blame] | 150 | } |
| 151 | |
Joel Becker | b657c95 | 2008-11-13 14:49:11 -0800 | [diff] [blame] | 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); |
Joel Becker | 6136ca5 | 2009-02-12 19:32:43 -0800 | [diff] [blame] | 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 | |
Darrick J. Wong | 84e4008 | 2016-11-09 14:13:09 -0800 | [diff] [blame] | 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 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 176 | #endif /* OCFS2_INODE_H */ |