Hello!
Here's the patch with some cleanups and nice wrapped lines. I leaving
out other fixes from e3.diff, they should be applied separately and
don't appear to be critical for my setup.
Changelog:
* fs/ext2.c (grub_ext2_blockgroup): Call grub_fshelp_map_block()
for the block that contains data for the requested group.
diff --git a/fs/ext2.c b/fs/ext2.c
index ffe9e33..f8642bb 100644
--- a/fs/ext2.c
+++ b/fs/ext2.c
@@ -257,12 +257,18 @@ inline static grub_err_t
grub_ext2_blockgroup (struct grub_ext2_data *data, int group,
struct grub_ext2_block_group *blkgrp)
{
+ int blkno, blkoff;
+
+ blkoff = group * sizeof (struct grub_ext2_block_group);
+ blkno = blkoff >> (LOG2_EXT2_BLOCK_SIZE (data) + 9);
+ blkoff -= (blkno << (LOG2_EXT2_BLOCK_SIZE (data) + 9));
+ blkno += grub_le_to_cpu32 (data->sblock.first_data_block) + 1;
+
return grub_disk_read (data->disk,
- (grub_fshelp_map_block (data->journal,
- grub_le_to_cpu32
(data->sblock.first_data_block) + 1)
+ (grub_fshelp_map_block (data->journal, blkno)
<< LOG2_EXT2_BLOCK_SIZE (data)),
- group * sizeof (struct grub_ext2_block_group),
- sizeof (struct grub_ext2_block_group), (char *)
blkgrp);
+ blkoff, sizeof (struct grub_ext2_block_group),
+ (char *) blkgrp);
}
--
Regards,
Pavel Roskin
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