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2008-05-20 Bean <bean123ch@gmail.com>

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* fs/fshelp.c (grub_fshelp_map_block): New function.
	(grub_fshelp_find_file): Use 64-bit type for pos and block address.
	Use `>>' and `&' operator to avoid 64-bit divide and modulo.

	* include/grub/fshelp.h (grub_fshelp_journal_type): New enum.
	(GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro.
	(grub_fshelp_journal): New structure.
	(grub_fshelp_map_block): New function prototype.
	(grub_fshelp_read_file): Use grub_disk_addr_t as block type.
	(grub_fshelp_map_block): Likewise.

	* fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro.
	(EXT3_JOURNAL_MAGIC_NUMBER): Likewise.
	(EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise.
	(EXT3_JOURNAL_COMMIT_BLOCK): Likewise.
	(EXT3_JOURNAL_SUPERBLOCK_V1): Likewise.
	(EXT3_JOURNAL_SUPERBLOCK_V2): Likewise.
	(EXT3_JOURNAL_REVOKE_BLOCK): Likewise.
	(EXT3_JOURNAL_FLAG_ESCAPE): Likewise.
	(EXT3_JOURNAL_FLAG_SAME_UUID): Likewise.
	(EXT3_JOURNAL_FLAG_DELETED): Likewise.
	(EXT3_JOURNAL_FLAG_LAST_TAG): Likewise.
	(grub_ext2_sblock): New members for journal support.
	(grub_ext3_journal_header): New structure.
	(grub_ext3_journal_revoke_header): Likewise.
	(grub_ext3_journal_block_tag): Likewise.
	(grub_ext3_journal_sblock): Likewise.
	(grub_fshelp_node): New members logfile and journal.
	(grub_ext2_read_block): Change block type to grub_disk_addr_t. Use
	grub_fshelp_map_block to get real block number.
	(grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block
	number.
	(grub_ext2_read_inode): Likewise.
	(grub_ext3_get_journal): New function.
	(grub_read_inode): Initialize journal using grub_ext3_get_journal.
	(grub_ext2_close): Release memory used by journal.

	* fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr".
	(REISERFS_MAGIC_DESC_BLOCK): New macro.
	(grub_reiserfs_transaction_header): Renamed to
	grub_reiserfs_description_block, replace field data with real_blocks.
	(grub_reiserfs_commit_block): New structure.
	(grub_reiserfs_data): New member journal.
	(grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block
	number.
	(grub_reiserfs_read_symlink): Likewise.
	(grub_reiserfs_iterate_dir): Likewise.
	(grub_reiserfs_open): Likewise.
	(grub_reiserfs_read): Likewise.
	(grub_reiserfs_get_journal): New function.
	(grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are
	three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal
	using grub_reiserfs_get_journal.
	(grub_reiserfs_close): Release memory used by journal.

	* fs/affs.c (grub_affs_read_block): Change block type to
	grub_disk_addr_t. Use grub_divmod64 to do 64-bit division.

	* fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t.

	* fs/hfsplus.c (grub_hfsplus_read_block): Likewise.

	* fs/ntfs.c (grub_ntfs_read_block): Likewise.

	* fs/udf.c (grub_udf_read_block): Change block type to
	grub_disk_addr_t. Use type cast to avoid warning.

	* fs/xfs.c (grub_xfs_read_block): Likewise.
This commit is contained in:
bean 2008-05-20 05:00:53 +00:00
parent b7c6bed50e
commit 887d2619bf
12 changed files with 575 additions and 83 deletions
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10
fs/affs.c
View file

@ -109,18 +109,19 @@ static grub_dl_t my_mod;
#endif
static int
grub_affs_read_block (grub_fshelp_node_t node, int fileblock)
static grub_disk_addr_t
grub_affs_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
{
int links;
grub_uint32_t pos;
int block = node->block;
struct grub_affs_file file;
struct grub_affs_data *data = node->data;
grub_uint32_t mod;
/* Find the block that points to the fileblock we are looking up by
following the chain until the right table is reached. */
for (links = fileblock / (data->htsize); links; links--)
for (links = grub_divmod64 (fileblock, data->htsize, &mod); links; links--)
{
grub_disk_read (data->disk, block + data->blocksize - 1,
data->blocksize * (GRUB_DISK_SECTOR_SIZE
@ -133,7 +134,7 @@ grub_affs_read_block (grub_fshelp_node_t node, int fileblock)
}
/* Translate the fileblock to the block within the right table. */
fileblock = fileblock % (data->htsize);
fileblock = mod;
grub_disk_read (data->disk, block,
GRUB_AFFS_BLOCKPTR_OFFSET
+ (data->htsize - fileblock - 1) * sizeof (pos),
@ -567,4 +568,3 @@ GRUB_MOD_FINI(affs)
{
grub_fs_unregister (&grub_affs_fs);
}