vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

2008-06-12 Pavel Roskin <proski@gnu.org>

Browse source 
* fs/fshelp.c (grub_fshelp_read): New function.  Implement
	linear disk read with journal translation.
	* fs/ext2.c: Use grub_fshelp_read() instead of grub_disk_read().
	* include/grub/fshelp.h: Declare grub_fshelp_read().
This commit is contained in:
proski 2008-06-12 14:48:27 +00:00
parent 40fd3a2b99
commit 16ae7781ef
4 changed files with 74 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

46
fs/ext2.c
View file

@ -257,12 +257,11 @@ inline static grub_err_t
grub_ext2_blockgroup (struct grub_ext2_data *data, int group,
struct grub_ext2_block_group *blkgrp)
{
return grub_disk_read (data->disk,
(grub_fshelp_map_block (data->journal,
grub_le_to_cpu32 (data->sblock.first_data_block) + 1)
<< LOG2_EXT2_BLOCK_SIZE (data)),
group * sizeof (struct grub_ext2_block_group),
sizeof (struct grub_ext2_block_group), (char *) blkgrp);
return grub_fshelp_read (data->disk, data->journal,
grub_le_to_cpu32 (data->sblock.first_data_block) + 1,
group * sizeof (struct grub_ext2_block_group),
sizeof (struct grub_ext2_block_group),
(char *) blkgrp, LOG2_EXT2_BLOCK_SIZE (data));
}
@ -283,11 +282,9 @@ grub_ext2_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
{
grub_uint32_t indir[blksz / 4];
if (grub_disk_read (data->disk,
grub_fshelp_map_block(data->journal,
grub_le_to_cpu32 (inode->blocks.indir_block))
<< log2_blksz,
0, blksz, (char *) indir))
if (grub_fshelp_read (data->disk, data->journal,
grub_le_to_cpu32 (inode->blocks.indir_block),
0, blksz, (char *) indir, log2_blksz))
return grub_errno;
blknr = grub_le_to_cpu32 (indir[fileblock - INDIRECT_BLOCKS]);
@ -300,18 +297,14 @@ grub_ext2_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
+ blksz / 4);
grub_uint32_t indir[blksz / 4];
if (grub_disk_read (data->disk,
grub_fshelp_map_block(data->journal,
grub_le_to_cpu32 (inode->blocks.double_indir_block))
<< log2_blksz,
0, blksz, (char *) indir))
if (grub_fshelp_read (data->disk, data->journal,
grub_le_to_cpu32 (inode->blocks.double_indir_block),
0, blksz, (char *) indir, log2_blksz))
return grub_errno;
if (grub_disk_read (data->disk,
grub_fshelp_map_block(data->journal,
grub_le_to_cpu32 (indir[rblock / perblock]))
<< log2_blksz,
0, blksz, (char *) indir))
if (grub_fshelp_read (data->disk, data->journal,
grub_le_to_cpu32 (indir[rblock / perblock]),
0, blksz, (char *) indir, log2_blksz))
return grub_errno;
@ -372,12 +365,11 @@ grub_ext2_read_inode (struct grub_ext2_data *data,
% inodes_per_block;
/* Read the inode. */
if (grub_disk_read (data->disk,
grub_fshelp_map_block(data->journal,
grub_le_to_cpu32 (blkgrp.inode_table_id) + blkno)
<< LOG2_EXT2_BLOCK_SIZE (data),
EXT2_INODE_SIZE (data) * blkoff,
sizeof (struct grub_ext2_inode), (char *) inode))
if (grub_fshelp_read (data->disk, data->journal,
grub_le_to_cpu32 (blkgrp.inode_table_id) + blkno,
EXT2_INODE_SIZE (data) * blkoff,
sizeof (struct grub_ext2_inode), (char *) inode,
LOG2_EXT2_BLOCK_SIZE (data)))
return grub_errno;
return 0;