/*
* ext2fs.h --- ext2fs
- *
+ *
* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
*
* %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
* %End-Header%
*/
#endif
/*
- * Build in support for byte-swapping filesystems if we the feature
- * has been configured or if we're being built on a CPU architecture
- * with a non-native byte order.
- */
-#if defined(ENABLE_SWAPFS) || defined(WORDS_BIGENDIAN)
-#define EXT2FS_ENABLE_SWAPFS
-#endif
-
-/*
* Where the master copy of the superblock is located, and how big
* superblocks are supposed to be. We define SUPERBLOCK_SIZE because
* the size of the superblock structure is not necessarily trustworthy
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <errno.h>
#if EXT2_FLAT_INCLUDES
#include "e2_types.h"
typedef __u32 ext2_ino_t;
typedef __u32 blk_t;
+typedef __u64 blk64_t;
typedef __u32 dgrp_t;
typedef __u32 ext2_off_t;
+typedef __u64 ext2_off64_t;
typedef __s64 e2_blkcnt_t;
typedef __u32 ext2_dirhash_t;
#include "com_err.h"
#include "ext2_io.h"
#include "ext2_err.h"
+#include "ext2_ext_attr.h"
#else
#include <et/com_err.h>
#include <ext2fs/ext2_io.h>
#include <ext2fs/ext2_err.h>
+#include <ext2fs/ext2_ext_attr.h>
#endif
/*
typedef struct struct_ext2_filsys *ext2_filsys;
-struct ext2fs_struct_generic_bitmap {
- errcode_t magic;
- ext2_filsys fs;
- __u32 start, end;
- __u32 real_end;
- char * description;
- char * bitmap;
- errcode_t base_error_code;
- __u32 reserved[7];
-};
-
#define EXT2FS_MARK_ERROR 0
#define EXT2FS_UNMARK_ERROR 1
#define EXT2FS_TEST_ERROR 2
/*
* ext2_dblist structure and abstractions (see dblist.c)
*/
+struct ext2_db_entry2 {
+ ext2_ino_t ino;
+ blk64_t blk;
+ e2_blkcnt_t blockcnt;
+};
+
+/* Ye Olde 32-bit version */
struct ext2_db_entry {
ext2_ino_t ino;
blk_t blk;
#define EXT2_FLAG_IMAGE_FILE 0x2000
#define EXT2_FLAG_EXCLUSIVE 0x4000
#define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
+#define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
+#define EXT2_FLAG_64BITS 0x20000
+#define EXT2_FLAG_PRINT_PROGRESS 0x40000
+#define EXT2_FLAG_DIRECT_IO 0x80000
/*
* Special flag in the ext2 inode i_flag field that means that this is
*/
#define EXT2_MKJOURNAL_V1_SUPER 0x0000001
+struct opaque_ext2_group_desc;
+
struct struct_ext2_filsys {
errcode_t magic;
io_channel io;
char * device_name;
struct ext2_super_block * super;
unsigned int blocksize;
- int fragsize;
+ int cluster_ratio_bits;
dgrp_t group_desc_count;
unsigned long desc_blocks;
- struct ext2_group_desc * group_desc;
+ struct opaque_ext2_group_desc * group_desc;
int inode_blocks_per_group;
ext2fs_inode_bitmap inode_map;
ext2fs_block_bitmap block_map;
+ /* XXX FIXME-64: not 64-bit safe, but not used? */
errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
errcode_t (*write_bitmaps)(ext2_filsys fs);
*/
struct ext2_inode_cache *icache;
io_channel image_io;
+
+ /*
+ * More callback functions
+ */
+ errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
+ blk64_t *ret);
+ void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
};
#if EXT2_FLAT_INCLUDES
* This is used by ext2fs_expand_dir() to be able to add a new block
* to an inode. It can also be used for programs that want to be able
* to deal with files that contain "holes".
- *
+ *
* BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
* the indirect, doubly indirect, etc. blocks should be called after
* all of the blocks containined in the indirect blocks are processed.
* BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
* called for data blocks only.
*
+ * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
+ * modify returned block number.
+ *
* BLOCK_FLAG_NO_LARGE is for internal use only. It informs
* ext2fs_block_iterate2 that large files won't be accepted.
*/
#define BLOCK_FLAG_HOLE 1
#define BLOCK_FLAG_DEPTH_TRAVERSE 2
#define BLOCK_FLAG_DATA_ONLY 4
+#define BLOCK_FLAG_READ_ONLY 8
#define BLOCK_FLAG_NO_LARGE 0x1000
/*
* Flags for ext2fs_move_blocks
*/
-#define EXT2_BMOVE_GET_DBLIST 0x0001
+#define EXT2_BMOVE_GET_DBLIST 0x0001
#define EXT2_BMOVE_DEBUG 0x0002
#endif
/*
+ * Generic (non-filesystem layout specific) extents structure
+ */
+
+#define EXT2_EXTENT_FLAGS_LEAF 0x0001
+#define EXT2_EXTENT_FLAGS_UNINIT 0x0002
+#define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
+
+struct ext2fs_extent {
+ blk64_t e_pblk; /* first physical block */
+ blk64_t e_lblk; /* first logical block extent covers */
+ __u32 e_len; /* number of blocks covered by extent */
+ __u32 e_flags; /* extent flags */
+};
+
+typedef struct ext2_extent_handle *ext2_extent_handle_t;
+typedef struct ext2_extent_path *ext2_extent_path_t;
+
+/*
+ * Flags used by ext2fs_extent_get()
+ */
+#define EXT2_EXTENT_CURRENT 0x0000
+#define EXT2_EXTENT_MOVE_MASK 0x000F
+#define EXT2_EXTENT_ROOT 0x0001
+#define EXT2_EXTENT_LAST_LEAF 0x0002
+#define EXT2_EXTENT_FIRST_SIB 0x0003
+#define EXT2_EXTENT_LAST_SIB 0x0004
+#define EXT2_EXTENT_NEXT_SIB 0x0005
+#define EXT2_EXTENT_PREV_SIB 0x0006
+#define EXT2_EXTENT_NEXT_LEAF 0x0007
+#define EXT2_EXTENT_PREV_LEAF 0x0008
+#define EXT2_EXTENT_NEXT 0x0009
+#define EXT2_EXTENT_PREV 0x000A
+#define EXT2_EXTENT_UP 0x000B
+#define EXT2_EXTENT_DOWN 0x000C
+#define EXT2_EXTENT_DOWN_AND_LAST 0x000D
+
+/*
+ * Flags used by ext2fs_extent_insert()
+ */
+#define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
+#define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
+
+/*
+ * Flags used by ext2fs_extent_delete()
+ */
+#define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
+
+/*
+ * Flags used by ext2fs_extent_set_bmap()
+ */
+#define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
+
+/*
+ * Data structure returned by ext2fs_extent_get_info()
+ */
+struct ext2_extent_info {
+ int curr_entry;
+ int curr_level;
+ int num_entries;
+ int max_entries;
+ int max_depth;
+ int bytes_avail;
+ blk64_t max_lblk;
+ blk64_t max_pblk;
+ __u32 max_len;
+ __u32 max_uninit_len;
+};
+
+/*
* Flags for directory block reading and writing functions
*/
#define EXT2_DIRBLOCK_V2_STRUCT 0x0001
#define BMAP_SET 0x0002
/*
+ * Returned flags from ext2fs_bmap
+ */
+#define BMAP_RET_UNINIT 0x0001
+
+/*
* Flags for imager.c functions
*/
#define IMAGER_FLAG_INODEMAP 1
/*
* For ext2 compression support
*/
-#define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff)
+#define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
#define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
/*
EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
EXT2_FEATURE_COMPAT_RESIZE_INODE|\
EXT2_FEATURE_COMPAT_DIR_INDEX|\
- EXT2_FEATURE_COMPAT_LAZY_BG|\
EXT2_FEATURE_COMPAT_EXT_ATTR)
/* This #ifdef is temporary until compression is fully supported */
EXT2_FEATURE_INCOMPAT_COMPRESSION|\
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
EXT2_FEATURE_INCOMPAT_META_BG|\
- EXT3_FEATURE_INCOMPAT_RECOVER)
+ EXT3_FEATURE_INCOMPAT_RECOVER|\
+ EXT3_FEATURE_INCOMPAT_EXTENTS|\
+ EXT4_FEATURE_INCOMPAT_FLEX_BG|\
+ EXT4_FEATURE_INCOMPAT_64BIT)
#else
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
EXT2_FEATURE_INCOMPAT_META_BG|\
- EXT3_FEATURE_INCOMPAT_RECOVER)
+ EXT3_FEATURE_INCOMPAT_RECOVER|\
+ EXT3_FEATURE_INCOMPAT_EXTENTS|\
+ EXT4_FEATURE_INCOMPAT_FLEX_BG|\
+ EXT4_FEATURE_INCOMPAT_64BIT)
#endif
#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
+ EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
+ EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
+ EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
/*
* These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
* to ext2fs_openfs()
*/
-#define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT3_FEATURE_INCOMPAT_EXTENTS)
-#define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
- EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
- EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)
+#define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
+#define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_BIGALLOC)
+
+
+/* Translate a block number to a cluster number */
+#define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
+#define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
+#define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
+/* Translate a cluster number to a block number */
+#define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
+/* Translate # of blks to # of clusters */
+#define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
+ (fs)->cluster_ratio_bits)
/*
* function prototypes
ext2fs_inode_bitmap map, ext2_ino_t *ret);
extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
ext2fs_block_bitmap map, blk_t *ret);
+extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
+ ext2fs_block_bitmap map, blk64_t *ret);
extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
blk_t finish, int num,
ext2fs_block_bitmap map,
blk_t *ret);
+extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
+ blk64_t finish, int num,
+ ext2fs_block_bitmap map,
+ blk64_t *ret);
extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
char *block_buf, blk_t *ret);
+extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
+ char *block_buf, blk64_t *ret);
+extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
+ errcode_t (*func)(ext2_filsys fs,
+ blk64_t goal,
+ blk64_t *ret),
+ errcode_t (**old)(ext2_filsys fs,
+ blk64_t goal,
+ blk64_t *ret));
/* alloc_sb.c */
-extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
+extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
dgrp_t group,
ext2fs_block_bitmap bmap);
+extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
+ void (*func)(ext2_filsys fs,
+ blk64_t blk,
+ int inuse),
+ void (**old)(ext2_filsys fs,
+ blk64_t blk,
+ int inuse));
/* alloc_stats.c */
void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
int inuse, int isdir);
void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
+void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
/* alloc_tables.c */
extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
ext2_badblocks_list bb_list);
/* bitmaps.c */
+extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
+extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
+extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
+ ext2fs_generic_bitmap *dest);
extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
-extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
- __u32 end,
- __u32 real_end,
- const char *descr,
- ext2fs_generic_bitmap *ret);
extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
const char *descr,
ext2fs_block_bitmap *ret);
+extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
+ const char *descr,
+ ext2fs_block_bitmap *ret);
+extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
const char *descr,
ext2fs_inode_bitmap *ret);
ext2_ino_t end, ext2_ino_t *oend);
extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
blk_t end, blk_t *oend);
+extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
+ blk64_t end, blk64_t *oend);
extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
+extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
+ ext2fs_inode_bitmap bmap);
+extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
+ __u64 new_real_end,
+ ext2fs_inode_bitmap bmap);
+extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
+ ext2fs_block_bitmap bmap);
+extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
+ __u64 new_real_end,
+ ext2fs_block_bitmap bmap);
+extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
+ ext2fs_block_bitmap bm2);
+extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
+ ext2fs_inode_bitmap bm2);
+extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
+ ext2_ino_t start, unsigned int num,
+ void *in);
+extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
+ __u64 start, size_t num,
+ void *in);
+extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
+ ext2_ino_t start, unsigned int num,
+ void *out);
+extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
+ __u64 start, size_t num,
+ void *out);
+extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
+ blk_t start, unsigned int num,
+ void *in);
+extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
+ blk64_t start, size_t num,
+ void *in);
+extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
+ blk_t start, unsigned int num,
+ void *out);
+extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
+ blk64_t start, size_t num,
+ void *out);
+
+/* blknum.c */
+extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
+extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
+extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
+extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
+ struct ext2_inode *inode);
+extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
+ struct ext2_inode *inode);
+extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
+extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
+ blk64_t blk);
+extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
+ blk64_t blk);
+extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
+extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
+ blk64_t blk);
+extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
+ blk64_t blk);
+extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
+extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
+ blk64_t blk);
+extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
+ blk64_t blk);
+/* Block group descriptor accessor functions */
+extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
+ struct opaque_ext2_group_desc *gdp,
+ dgrp_t group);
+extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
+ blk64_t blk);
+extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
+ blk64_t blk);
+extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
+ blk64_t blk);
+extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
+ __u32 n);
+extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
+ __u32 n);
+extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
+ __u32 n);
+extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
+ __u32 n);
+extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
+extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
+extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
+extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
+extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
+extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
+extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
+extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
/* block.c */
extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
int ref_offset,
void *priv_data),
void *priv_data);
+errcode_t ext2fs_block_iterate3(ext2_filsys fs,
+ ext2_ino_t ino,
+ int flags,
+ char *block_buf,
+ int (*func)(ext2_filsys fs,
+ blk64_t *blocknr,
+ e2_blkcnt_t blockcnt,
+ blk64_t ref_blk,
+ int ref_offset,
+ void *priv_data),
+ void *priv_data);
/* bmap.c */
extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode *inode,
+ struct ext2_inode *inode,
char *block_buf, int bmap_flags,
blk_t block, blk_t *phys_blk);
-
+extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ char *block_buf, int bmap_flags, blk64_t block,
+ int *ret_flags, blk64_t *phys_blk);
#if 0
/* bmove.c */
extern errcode_t ext2fs_close(ext2_filsys fs);
extern errcode_t ext2fs_flush(ext2_filsys fs);
extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
-extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
+extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
+ dgrp_t group,
+ blk64_t *ret_super_blk,
+ blk64_t *ret_old_desc_blk,
+ blk64_t *ret_new_desc_blk,
+ blk_t *ret_used_blks);
+extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
dgrp_t group,
blk_t *ret_super_blk,
blk_t *ret_old_desc_blk,
int *ret_meta_bg);
extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
-/* cmp_bitmaps.c */
-extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
- ext2fs_block_bitmap bm2);
-extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
- ext2fs_inode_bitmap bm2);
+/* csum.c */
+extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
+extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
+extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
/* dblist.c */
extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
blk_t blk, int blockcnt);
+extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
+ blk64_t blk, e2_blkcnt_t blockcnt);
extern void ext2fs_dblist_sort(ext2_dblist dblist,
EXT2_QSORT_TYPE (*sortfunc)(const void *,
const void *));
+extern void ext2fs_dblist_sort2(ext2_dblist dblist,
+ EXT2_QSORT_TYPE (*sortfunc)(const void *,
+ const void *));
extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
void *priv_data),
void *priv_data);
+extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
+ int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
+ void *priv_data),
+ void *priv_data);
extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
blk_t blk, int blockcnt);
+extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
+ blk64_t blk, e2_blkcnt_t blockcnt);
extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
ext2_dblist *dest);
extern int ext2fs_dblist_count(ext2_dblist dblist);
+extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
+extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
+ struct ext2_db_entry **entry);
+extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
+ struct ext2_db_entry2 **entry);
+extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
/* dblist_dir.c */
extern errcode_t
void *buf);
extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
void *buf, int flags);
+extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
+ void *buf, int flags);
extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
void *buf);
extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
void *buf, int flags);
+extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
+ void *buf, int flags);
/* dirhash.c */
extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
/* dir_iterate.c */
-extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
+extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ unsigned int *rec_len);
+extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
+ unsigned int len,
+ struct ext2_dir_entry *dirent);
+extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
ext2_ino_t dir,
int flags,
char *block_buf,
char *buf,
void *priv_data),
void *priv_data);
-extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
+extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
ext2_ino_t dir,
int flags,
char *block_buf,
extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
/* ext_attr.c */
+extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
+ void *data);
extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
+extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
+ void *buf);
extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
void *buf);
+extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
+ void *buf);
extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
char *block_buf,
int adjust, __u32 *newcount);
+extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
+ char *block_buf,
+ int adjust, __u32 *newcount);
+
+/* extent.c */
+extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
+extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
+ ext2_extent_handle_t *handle);
+extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ ext2_extent_handle_t *ret_handle);
+extern void ext2fs_extent_free(ext2_extent_handle_t handle);
+extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
+ int flags, struct ext2fs_extent *extent);
+extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
+ struct ext2fs_extent *extent);
+extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
+ struct ext2fs_extent *extent);
+extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
+ blk64_t logical, blk64_t physical,
+ int flags);
+extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
+extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
+ struct ext2_extent_info *info);
+extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
+ blk64_t blk);
/* fileio.c */
extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
int flags, ext2_file_t *ret);
extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
+struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
extern errcode_t ext2fs_file_close(ext2_file_t file);
extern errcode_t ext2fs_file_flush(ext2_file_t file);
extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
+extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
/* finddev.c */
extern char *ext2fs_find_block_device(dev_t device);
/* freefs.c */
extern void ext2fs_free(ext2_filsys fs);
-extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
-extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
-extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
extern void ext2fs_free_dblist(ext2_dblist dblist);
extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
extern void ext2fs_u32_list_free(ext2_u32_list bb);
+/* gen_bitmap.c */
+extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
+extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
+ __u32 start, __u32 end,
+ __u32 real_end,
+ const char *descr, char *init_map,
+ ext2fs_generic_bitmap *ret);
+extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
+ __u32 end,
+ __u32 real_end,
+ const char *descr,
+ ext2fs_generic_bitmap *ret);
+extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
+ ext2fs_generic_bitmap *dest);
+extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
+extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
+ errcode_t magic,
+ errcode_t neq,
+ ext2_ino_t end,
+ ext2_ino_t *oend);
+extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
+extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
+ __u32 new_end,
+ __u32 new_real_end,
+ ext2fs_generic_bitmap bmap);
+extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
+ ext2fs_generic_bitmap bm1,
+ ext2fs_generic_bitmap bm2);
+extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
+ errcode_t magic,
+ __u32 start, __u32 num,
+ void *out);
+extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
+ errcode_t magic,
+ __u32 start, __u32 num,
+ void *in);
+
+/* gen_bitmap64.c */
+void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
+errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
+ int type, __u64 start, __u64 end,
+ __u64 real_end,
+ const char *descr,
+ ext2fs_generic_bitmap *ret);
+errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
+ ext2fs_generic_bitmap *dest);
+void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
+errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
+ errcode_t neq,
+ __u64 end, __u64 *oend);
+void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
+errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
+ __u64 new_end,
+ __u64 new_real_end);
+errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
+ ext2fs_generic_bitmap bm1,
+ ext2fs_generic_bitmap bm2);
+errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
+ __u64 start, unsigned int num,
+ void *out);
+errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
+ __u64 start, unsigned int num,
+ void *in);
+errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
+ ext2fs_block_bitmap *bitmap);
+
/* getsize.c */
extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
blk_t *retblocks);
+extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
+ blk64_t *retblocks);
/* getsectsize.c */
errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
+errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
+
+/* i_block.c */
+errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
+ blk64_t num_blocks);
+errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
+ blk64_t num_blocks);
+errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
/* imager.c */
extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
extern void ext2fs_free_icount(ext2_icount_t icount);
extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
int flags, ext2_icount_t *ret);
-extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
+extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
unsigned int size,
ext2_icount_t hint, ext2_icount_t *ret);
-extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
+extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
unsigned int size,
ext2_icount_t *ret);
extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
/* inode.c */
extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
-extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
+extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
ext2_ino_t *ino,
- struct ext2_inode *inode,
+ struct ext2_inode *inode,
int bufsize);
extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
ext2_inode_scan *ret_scan);
extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
int clear_flags);
extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode * inode,
+ struct ext2_inode * inode,
int bufsize);
extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode * inode,
+ struct ext2_inode * inode,
int bufsize);
extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
/* inode_io.c */
extern io_manager inode_io_manager;
-extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
+extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
char **name);
extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
char **name);
-
+
/* ismounted.c */
extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
char *mtpt, int mtlen);
+/* punch.c */
+extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ char *block_buf, blk64_t start,
+ blk64_t end);
+
/* namei.c */
extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
int namelen, char *buf, ext2_ino_t *inode);
const char *name);
/* mkjournal.c */
+extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
+ blk_t *ret_blk, int *ret_count);
+extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
+ blk64_t *ret_blk, int *ret_count);
extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
__u32 size, int flags,
char **ret_jsb);
extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
unsigned int block_size, io_manager manager,
ext2_filsys *ret_fs);
-extern errcode_t ext2fs_open2(const char *name, const char *io_options,
- int flags, int superblock,
+extern errcode_t ext2fs_open2(const char *name, const char *io_options,
+ int flags, int superblock,
unsigned int block_size, io_manager manager,
ext2_filsys *ret_fs);
-extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
+extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
+ blk64_t group_block, dgrp_t i);
+extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
dgrp_t i);
errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
ext2_badblocks_list *bb_list);
/* read_bb_file.c */
-extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
+extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
void *priv_data,
void (*invalid)(ext2_filsys fs,
blk_t blk,
char *badstr,
void *priv_data));
-extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
+extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
void (*invalid)(ext2_filsys fs,
blk_t blk));
/* res_gdt.c */
extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
-/* rs_bitmap.c */
-extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end,
- __u32 new_real_end,
- ext2fs_generic_bitmap bmap);
-extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
- ext2fs_inode_bitmap bmap);
-extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
- ext2fs_block_bitmap bmap);
-extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
- ext2fs_generic_bitmap *dest);
-
/* swapfs.c */
-extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
+extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
int has_header);
+extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
+ struct ext2_ext_attr_header *from_hdr);
+extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
+ struct ext2_ext_attr_entry *from_entry);
extern void ext2fs_swap_super(struct ext2_super_block * super);
extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
+extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
struct ext2_inode_large *f, int hostorder,
int bufsize);
/* inline functions */
extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
-extern errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr);
+extern errcode_t ext2fs_get_memalign(unsigned long size,
+ unsigned long align, void *ptr);
extern errcode_t ext2fs_free_mem(void *ptr);
extern errcode_t ext2fs_resize_mem(unsigned long old_size,
unsigned long size, void *ptr);
extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
struct ext2_inode *inode);
extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
+extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
/*
* The actual inlined functions definitions themselves...
memcpy(ptr, &pp, sizeof (pp));
return 0;
}
+
+_INLINE_ errcode_t ext2fs_get_memalign(unsigned long size,
+ unsigned long align, void *ptr)
+{
+ errcode_t retval;
+
+ if (align == 0)
+ align = 8;
+ if (retval = posix_memalign((void **) ptr, align, size)) {
+ if (retval == ENOMEM)
+ return EXT2_ET_NO_MEMORY;
+ return retval;
+ }
+ return 0;
+}
+
+_INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
+{
+ void *pp;
+
+ pp = malloc(size);
+ if (!pp)
+ return EXT2_ET_NO_MEMORY;
+ memset(pp, 0, size);
+ memcpy(ptr, &pp, sizeof(pp));
+ return 0;
+}
+
_INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
{
if (count && (-1UL)/count<size)
- return EXT2_ET_NO_MEMORY; //maybe define EXT2_ET_OVERFLOW ?
+ return EXT2_ET_NO_MEMORY;
return ext2fs_get_mem(count*size, ptr);
}
+_INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
+ unsigned long size, void *ptr)
+{
+ void *pp;
+
+ if (count && (-1UL)/count<size)
+ return EXT2_ET_NO_MEMORY;
+ pp = calloc(count, size);
+ if (!pp)
+ return EXT2_ET_NO_MEMORY;
+ memcpy(ptr, &pp, sizeof(pp));
+ return 0;
+}
+
/*
* Free memory
*/
memcpy(ptr, &p, sizeof(p));
return 0;
}
-
+
/*
* Resize memory
*/
*/
_INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
{
- return (blk - fs->super->s_first_data_block) /
- fs->super->s_blocks_per_group;
+ return ext2fs_group_of_blk2(fs, blk);
}
-
/*
* Return the group # of an inode number
*/
*/
_INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
{
- return fs->super->s_first_data_block +
- (group * fs->super->s_blocks_per_group);
+ return ext2fs_group_first_block2(fs, group);
}
/*
*/
_INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
{
- return (group == fs->group_desc_count - 1 ?
- fs->super->s_blocks_count - 1 :
- ext2fs_group_first_block(fs, group) +
- (fs->super->s_blocks_per_group - 1));
+ return ext2fs_group_last_block2(fs, group);
}
_INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
struct ext2_inode *inode)
{
- return inode->i_blocks -
- (inode->i_file_acl ? fs->blocksize >> 9 : 0);
+ return ext2fs_inode_data_blocks2(fs, inode);
}
/*
return 0;
return ((a - 1) / b) + 1;
}
+
+_INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
+{
+ if (!a)
+ return 0;
+ return ((a - 1) / b) + 1;
+}
+
#undef _INLINE_
#endif
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff