^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* -*- mode: c; c-basic-offset: 8; -*-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * vim: noexpandtab sw=8 ts=8 sts=0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * inode.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Function prototypes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (C) 2002, 2004 Oracle. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifndef OCFS2_INODE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define OCFS2_INODE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "extent_map.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* OCFS2 Inode Private Data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct ocfs2_inode_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) u64 ip_blkno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct ocfs2_lock_res ip_rw_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct ocfs2_lock_res ip_inode_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct ocfs2_lock_res ip_open_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /* protects allocation changes on this inode. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct rw_semaphore ip_alloc_sem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /* protects extended attribute changes on this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct rw_semaphore ip_xattr_sem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) /* These fields are protected by ip_lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) spinlock_t ip_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u32 ip_open_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct list_head ip_io_markers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) u32 ip_clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) u16 ip_dyn_features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct mutex ip_io_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) u32 ip_flags; /* see below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) u32 ip_attr; /* inode attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /* Record unwritten extents during direct io. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct list_head ip_unwritten_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /* protected by recovery_lock. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct inode *ip_next_orphan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct ocfs2_caching_info ip_metadata_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct ocfs2_extent_map ip_extent_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct inode vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct jbd2_inode ip_jinode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) u32 ip_dir_start_lookup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* Only valid if the inode is the dir. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) u32 ip_last_used_slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) u64 ip_last_used_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) u32 ip_dir_lock_gen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct ocfs2_alloc_reservation ip_la_data_resv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * Transactions that contain inode's metadata needed to complete
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * fsync and fdatasync, respectively.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) tid_t i_sync_tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) tid_t i_datasync_tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct dquot *i_dquot[MAXQUOTAS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * Flags for the ip_flags field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /* System file inodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define OCFS2_INODE_SYSTEM_FILE 0x00000001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define OCFS2_INODE_JOURNAL 0x00000002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define OCFS2_INODE_BITMAP 0x00000004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /* This inode has been wiped from disk */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define OCFS2_INODE_DELETED 0x00000008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* Has the inode been orphaned on another node?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * This hints to ocfs2_drop_inode that it should clear i_nlink before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * continuing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * We *only* set this on unlink vote from another node. If the inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * was locally orphaned, then we're sure of the state and don't need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * to twiddle i_nlink later - it's either zero or not depending on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * whether our unlink succeeded. Otherwise we got this from a node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * whose intention was to orphan the inode, however he may have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * crashed, failed etc, so we let ocfs2_drop_inode zero the value and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * rely on ocfs2_delete_inode to sort things out under the proper
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * cluster locks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define OCFS2_INODE_MAYBE_ORPHANED 0x00000010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /* Does someone have the file open O_DIRECT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define OCFS2_INODE_OPEN_DIRECT 0x00000020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /* Tell the inode wipe code it's not in orphan dir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define OCFS2_INODE_SKIP_ORPHAN_DIR 0x00000040
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /* Entry in orphan dir with 'dio-' prefix */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #define OCFS2_INODE_DIO_ORPHAN_ENTRY 0x00000080
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return container_of(inode, struct ocfs2_inode_info, vfs_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags & OCFS2_INODE_JOURNAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define SET_INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags |= OCFS2_INODE_JOURNAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) extern const struct address_space_operations ocfs2_aops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) extern const struct ocfs2_caching_operations ocfs2_inode_caching_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return &OCFS2_I(inode)->ip_metadata_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) void ocfs2_evict_inode(struct inode *inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int ocfs2_drop_inode(struct inode *inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) /* Flags for ocfs2_iget() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #define OCFS2_FI_FLAG_SYSFILE 0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define OCFS2_FI_FLAG_ORPHAN_RECOVERY 0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define OCFS2_FI_FLAG_FILECHECK_CHK 0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define OCFS2_FI_FLAG_FILECHECK_FIX 0x8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct inode *ocfs2_ilookup(struct super_block *sb, u64 feoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) int sysfile_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) int ocfs2_inode_revalidate(struct dentry *dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int create_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) void ocfs2_sync_blockdev(struct super_block *sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) void ocfs2_refresh_inode(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct ocfs2_dinode *fe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int ocfs2_mark_inode_dirty(handle_t *handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct buffer_head *bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) void ocfs2_set_inode_flags(struct inode *inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) int c_to_s_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits - 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return (blkcnt_t)OCFS2_I(inode)->ip_clusters << c_to_s_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) /* Validate that a bh contains a valid inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int ocfs2_validate_inode_block(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct buffer_head *bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * Read an inode block into *bh. If *bh is NULL, a bh will be allocated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * This is a cached read. The inode will be validated with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * ocfs2_validate_inode_block().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /* The same, but can be passed OCFS2_BH_* flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) int flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static inline struct ocfs2_inode_info *cache_info_to_inode(struct ocfs2_caching_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return container_of(ci, struct ocfs2_inode_info, ip_metadata_cache);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /* Does this inode have the reflink flag set? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static inline bool ocfs2_is_refcount_inode(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #endif /* OCFS2_INODE_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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