linux/fs/udf/balloc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * balloc.c
 *
 * PURPOSE
 *	Block allocation handling routines for the OSTA-UDF(tm) filesystem.
 *
 * COPYRIGHT
 *  (C) 1999-2001 Ben Fennema
 *  (C) 1999 Stelias Computing Inc
 *
 * HISTORY
 *
 *  02/24/99 blf  Created.
 *
 */

#include "udfdecl.h"

#include <linux/bitops.h>
#include <linux/overflow.h>

#include "udf_i.h"
#include "udf_sb.h"

#define udf_clear_bit …
#define udf_set_bit …
#define udf_test_bit …
#define udf_find_next_one_bit …

static int read_block_bitmap(struct super_block *sb,
			     struct udf_bitmap *bitmap, unsigned int block,
			     unsigned long bitmap_nr)
{ … }

static int load_block_bitmap(struct super_block *sb,
			     struct udf_bitmap *bitmap,
			     unsigned int block_group)
{ … }

static void udf_add_free_space(struct super_block *sb, u16 partition, u32 cnt)
{ … }

static void udf_bitmap_free_blocks(struct super_block *sb,
				   struct udf_bitmap *bitmap,
				   struct kernel_lb_addr *bloc,
				   uint32_t offset,
				   uint32_t count)
{ … }

static int udf_bitmap_prealloc_blocks(struct super_block *sb,
				      struct udf_bitmap *bitmap,
				      uint16_t partition, uint32_t first_block,
				      uint32_t block_count)
{ … }

static udf_pblk_t udf_bitmap_new_block(struct super_block *sb,
				struct udf_bitmap *bitmap, uint16_t partition,
				uint32_t goal, int *err)
{ … }

static void udf_table_free_blocks(struct super_block *sb,
				  struct inode *table,
				  struct kernel_lb_addr *bloc,
				  uint32_t offset,
				  uint32_t count)
{ … }

static int udf_table_prealloc_blocks(struct super_block *sb,
				     struct inode *table, uint16_t partition,
				     uint32_t first_block, uint32_t block_count)
{ … }

static udf_pblk_t udf_table_new_block(struct super_block *sb,
			       struct inode *table, uint16_t partition,
			       uint32_t goal, int *err)
{ … }

void udf_free_blocks(struct super_block *sb, struct inode *inode,
		     struct kernel_lb_addr *bloc, uint32_t offset,
		     uint32_t count)
{ … }

inline int udf_prealloc_blocks(struct super_block *sb,
			       struct inode *inode,
			       uint16_t partition, uint32_t first_block,
			       uint32_t block_count)
{ … }

inline udf_pblk_t udf_new_block(struct super_block *sb,
			 struct inode *inode,
			 uint16_t partition, uint32_t goal, int *err)
{ … }