typedef __u32 __bitwise blk_t;
typedef __u64 __bitwise blk64_t;
typedef __u32 __bitwise dgrp_t;
-typedef __u32 __bitwise ext2_off_t;
-typedef __u64 __bitwise ext2_off64_t;
+typedef __s32 __bitwise ext2_off_t;
+typedef __s64 __bitwise ext2_off64_t;
typedef __s64 __bitwise e2_blkcnt_t;
typedef __u32 __bitwise ext2_dirhash_t;
#define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
#define EXT2_FLAG_BBITMAP_TAIL_PROBLEM 0x1000000
#define EXT2_FLAG_IBITMAP_TAIL_PROBLEM 0x2000000
+#define EXT2_FLAG_THREADS 0x4000000
/*
* Special flag in the ext2 inode i_flag field that means that this is
#define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
#define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
+/*
+ * Normal journal area size to fast commit area size ratio. This is used to
+ * set default size of fast commit area.
+ */
+#define EXT2_JOURNAL_TO_FC_BLKS_RATIO 64
+
struct blk_alloc_ctx;
struct opaque_ext2_group_desc;
#define XATTR_CHANGED 2
/*
+ * flags for ext2fs_rw_bitmaps()
+ */
+#define EXT2FS_BITMAPS_WRITE 0x0001
+#define EXT2FS_BITMAPS_BLOCK 0x0002
+#define EXT2FS_BITMAPS_INODE 0x0004
+#define EXT2FS_BITMAPS_VALID_FLAGS 0x0007
+
+/*
* function prototypes
*/
static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
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);
+ struct ext2_inode *inode);
+extern blk64_t ext2fs_get_stat_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);
struct ext2_dir_entry *dirent,
struct ext2_dx_countlimit **cc,
int *offset);
+extern errcode_t ext2fs_dx_csum(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent,
+ __u32 *crc, struct ext2_dx_tail **ret_t);
extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
ext2_ino_t inum,
struct ext3_extent_header *eh);
extern size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
extern errcode_t ext2fs_fix_extents_checksums(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode);
+extern errcode_t ext2fs_count_blocks(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode, blk64_t *ret_count);
+extern errcode_t ext2fs_decode_extent(struct ext2fs_extent *to, void *from,
+ int len);
/* fallocate.c */
#define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
void *in);
errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
ext2fs_block_bitmap *bitmap);
+errcode_t ext2fs_count_used_clusters(ext2_filsys fs, blk64_t start,
+ blk64_t end, blk64_t *out);
/* get_num_dirs.c */
extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
extern errcode_t ext2fs_initialize(const char *name, int flags,
struct ext2_super_block *param,
io_manager manager, ext2_filsys *ret_fs);
+extern errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs, int super_only);
/* icount.c */
extern void ext2fs_free_icount(ext2_icount_t icount);
const char *name);
/* mkjournal.c */
+struct ext2fs_journal_params {
+ blk_t num_journal_blocks;
+ blk_t num_fc_blocks;
+};
+extern errcode_t ext2fs_get_journal_params(
+ struct ext2fs_journal_params *params, ext2_filsys fs);
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,
extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
__u32 num_blocks, int flags,
char **ret_jsb);
+extern errcode_t ext2fs_create_journal_superblock2(ext2_filsys fs,
+ struct ext2fs_journal_params *params,
+ int flags, char **ret_jsb);
extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
ext2_filsys journal_dev);
extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
int flags);
extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
blk64_t goal, int flags);
+extern errcode_t ext2fs_add_journal_inode3(ext2_filsys fs,
+ struct ext2fs_journal_params *params,
+ blk64_t goal, int flags);
extern int ext2fs_default_journal_size(__u64 num_blocks);
extern int ext2fs_journal_sb_start(int blocksize);
extern errcode_t ext2fs_free_mem(void *ptr);
extern errcode_t ext2fs_resize_mem(unsigned long old_size,
unsigned long size, void *ptr);
+extern errcode_t ext2fs_resize_array(unsigned long old_count, unsigned long count,
+ unsigned long size, void *ptr);
extern void ext2fs_mark_super_dirty(ext2_filsys fs);
extern void ext2fs_mark_changed(ext2_filsys fs);
extern int ext2fs_test_changed(ext2_filsys fs);
return 0;
}
-_INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
+_INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size,
+ void *ptr)
{
if (count && (~0UL)/count < size)
return EXT2_ET_NO_MEMORY;
_INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
unsigned long size, void *ptr)
{
- void *pp;
-
if (count && (~0UL)/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;
+
+ return ext2fs_get_memzero((size_t)count * size, ptr);
}
/*
memcpy(ptr, &p, sizeof(p));
return 0;
}
+
+/*
+ * Resize array. The 'ptr' arg must point to a pointer.
+ */
+_INLINE_ errcode_t ext2fs_resize_array(unsigned long size,
+ unsigned long old_count,
+ unsigned long count, void *ptr)
+{
+ unsigned long old_size;
+ errcode_t retval;
+
+ if (count && (~0UL)/count < size)
+ return EXT2_ET_NO_MEMORY;
+
+ size *= count;
+ old_size = size * old_count;
+ retval = ext2fs_resize_mem(old_size, size, ptr);
+ if (retval)
+ return retval;
+
+ if (size > old_size) {
+ void *p;
+
+ memcpy(&p, ptr, sizeof(p));
+ memset((char *)p + old_size, 0, size - old_size);
+ memcpy(ptr, &p, sizeof(p));
+ }
+
+ return 0;
+}
#endif /* Custom memory routines */
/*
_INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
{
- return blocks * ((fs->blocksize - 8) / sizeof(struct ext2_dx_entry));
+ int csum_size = 0;
+
+ if ((EXT2_SB(fs->super)->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) != 0)
+ csum_size = sizeof(struct ext2_dx_tail);
+ return blocks * ((fs->blocksize - (8 + csum_size)) /
+ sizeof(struct ext2_dx_entry));
}
/*
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff