linux/fs/gfs2/meta_io.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 */

#ifndef __DIO_DOT_H__
#define __DIO_DOT_H__

#include <linux/buffer_head.h>
#include <linux/string.h>
#include "incore.h"

static inline void gfs2_buffer_clear(struct buffer_head *bh)
{ … }

static inline void gfs2_buffer_clear_tail(struct buffer_head *bh, int head)
{ … }

static inline void gfs2_buffer_copy_tail(struct buffer_head *to_bh,
					 int to_head,
					 struct buffer_head *from_bh,
					 int from_head)
{ … }

extern const struct address_space_operations gfs2_meta_aops;
extern const struct address_space_operations gfs2_rgrp_aops;

static inline struct gfs2_sbd *gfs2_mapping2sbd(struct address_space *mapping)
{ … }

struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno);
int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags,
		   int rahead, struct buffer_head **bhp);
int gfs2_meta_wait(struct gfs2_sbd *sdp, struct buffer_head *bh);
struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno,
			        int create);
enum { … };

void gfs2_remove_from_journal(struct buffer_head *bh, int meta);
void gfs2_journal_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen);
int gfs2_meta_buffer(struct gfs2_inode *ip, u32 mtype, u64 num,
		     struct buffer_head **bhp);

static inline int gfs2_meta_inode_buffer(struct gfs2_inode *ip,
					 struct buffer_head **bhp)
{ … }

struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen);

#define buffer_busy(bh) …

#endif /* __DIO_DOT_H__ */