linux/fs/hpfs/buffer.c

// SPDX-License-Identifier: GPL-2.0
/*
 *  linux/fs/hpfs/buffer.c
 *
 *  Mikulas Patocka ([email protected]), 1998-1999
 *
 *  general buffer i/o
 */
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include "hpfs_fn.h"

secno hpfs_search_hotfix_map(struct super_block *s, secno sec)
{ … }

unsigned hpfs_search_hotfix_map_for_range(struct super_block *s, secno sec, unsigned n)
{ … }

void hpfs_prefetch_sectors(struct super_block *s, unsigned secno, int n)
{ … }

/* Map a sector into a buffer and return pointers to it and to the buffer. */

void *hpfs_map_sector(struct super_block *s, unsigned secno, struct buffer_head **bhp,
		 int ahead)
{ … }

/* Like hpfs_map_sector but don't read anything */

void *hpfs_get_sector(struct super_block *s, unsigned secno, struct buffer_head **bhp)
{ … }

/* Map 4 sectors into a 4buffer and return pointers to it and to the buffer. */

void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffer_head *qbh,
		   int ahead)
{ … }

/* Don't read sectors */

void *hpfs_get_4sectors(struct super_block *s, unsigned secno,
                          struct quad_buffer_head *qbh)
{ … }
	

void hpfs_brelse4(struct quad_buffer_head *qbh)
{ … }	

void hpfs_mark_4buffers_dirty(struct quad_buffer_head *qbh)
{ … }