linux/fs/ocfs2/inode.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * inode.h
 *
 * Function prototypes
 *
 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
 */

#ifndef OCFS2_INODE_H
#define OCFS2_INODE_H

#include "extent_map.h"

/* OCFS2 Inode Private Data */
struct ocfs2_inode_info
{ … };

/*
 * Flags for the ip_flags field
 */
/* System file inodes  */
#define OCFS2_INODE_SYSTEM_FILE …
#define OCFS2_INODE_JOURNAL …
#define OCFS2_INODE_BITMAP …
/* This inode has been wiped from disk */
#define OCFS2_INODE_DELETED …
/* Has the inode been orphaned on another node?
 *
 * This hints to ocfs2_drop_inode that it should clear i_nlink before
 * continuing.
 *
 * We *only* set this on unlink vote from another node. If the inode
 * was locally orphaned, then we're sure of the state and don't need
 * to twiddle i_nlink later - it's either zero or not depending on
 * whether our unlink succeeded. Otherwise we got this from a node
 * whose intention was to orphan the inode, however he may have
 * crashed, failed etc, so we let ocfs2_drop_inode zero the value and
 * rely on ocfs2_delete_inode to sort things out under the proper
 * cluster locks.
 */
#define OCFS2_INODE_MAYBE_ORPHANED …
/* Does someone have the file open O_DIRECT */
#define OCFS2_INODE_OPEN_DIRECT …
/* Tell the inode wipe code it's not in orphan dir */
#define OCFS2_INODE_SKIP_ORPHAN_DIR …
/* Entry in orphan dir with 'dio-' prefix */
#define OCFS2_INODE_DIO_ORPHAN_ENTRY …

static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode)
{ … }

#define INODE_JOURNAL(i) …
#define SET_INODE_JOURNAL(i) …

extern const struct address_space_operations ocfs2_aops;
extern const struct ocfs2_caching_operations ocfs2_inode_caching_ops;

static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode)
{ … }

void ocfs2_evict_inode(struct inode *inode);
int ocfs2_drop_inode(struct inode *inode);

/* Flags for ocfs2_iget() */
#define OCFS2_FI_FLAG_SYSFILE …
#define OCFS2_FI_FLAG_ORPHAN_RECOVERY …
#define OCFS2_FI_FLAG_FILECHECK_CHK …
#define OCFS2_FI_FLAG_FILECHECK_FIX …

struct inode *ocfs2_ilookup(struct super_block *sb, u64 feoff);
struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags,
			 int sysfile_type);
int ocfs2_inode_revalidate(struct dentry *dentry);
void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
			  int create_ino);
void ocfs2_sync_blockdev(struct super_block *sb);
void ocfs2_refresh_inode(struct inode *inode,
			 struct ocfs2_dinode *fe);
int ocfs2_mark_inode_dirty(handle_t *handle,
			   struct inode *inode,
			   struct buffer_head *bh);

void ocfs2_set_inode_flags(struct inode *inode);
void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);

static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
{ … }

/* Validate that a bh contains a valid inode */
int ocfs2_validate_inode_block(struct super_block *sb,
			       struct buffer_head *bh);
/*
 * Read an inode block into *bh.  If *bh is NULL, a bh will be allocated.
 * This is a cached read.  The inode will be validated with
 * ocfs2_validate_inode_block().
 */
int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh);
/* The same, but can be passed OCFS2_BH_* flags */
int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
				int flags);

static inline struct ocfs2_inode_info *cache_info_to_inode(struct ocfs2_caching_info *ci)
{ … }

/* Does this inode have the reflink flag set? */
static inline bool ocfs2_is_refcount_inode(struct inode *inode)
{ … }

#endif /* OCFS2_INODE_H */