diff options
Diffstat (limited to 'extra/source/grub/grub_support_256byte_inode.patch')
| -rw-r--r-- | extra/source/grub/grub_support_256byte_inode.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/extra/source/grub/grub_support_256byte_inode.patch b/extra/source/grub/grub_support_256byte_inode.patch new file mode 100644 index 000000000..bef3bc18e --- /dev/null +++ b/extra/source/grub/grub_support_256byte_inode.patch @@ -0,0 +1,94 @@ +diff -Nrup a/stage2/fsys_ext2fs.c b/stage2/fsys_ext2fs.c +--- a/stage2/fsys_ext2fs.c 2004-08-08 20:19:18.000000000 +0200 ++++ b/stage2/fsys_ext2fs.c 2008-01-30 14:27:20.000000000 +0100 +@@ -79,7 +79,52 @@ struct ext2_super_block + __u32 s_rev_level; /* Revision level */ + __u16 s_def_resuid; /* Default uid for reserved blocks */ + __u16 s_def_resgid; /* Default gid for reserved blocks */ +- __u32 s_reserved[235]; /* Padding to the end of the block */ ++ /* ++ * These fields are for EXT2_DYNAMIC_REV superblocks only. ++ * ++ * Note: the difference between the compatible feature set and ++ * the incompatible feature set is that if there is a bit set ++ * in the incompatible feature set that the kernel doesn't ++ * know about, it should refuse to mount the filesystem. ++ * ++ * e2fsck's requirements are more strict; if it doesn't know ++ * about a feature in either the compatible or incompatible ++ * feature set, it must abort and not try to meddle with ++ * things it doesn't understand... ++ */ ++ __u32 s_first_ino; /* First non-reserved inode */ ++ __u16 s_inode_size; /* size of inode structure */ ++ __u16 s_block_group_nr; /* block group # of this superblock */ ++ __u32 s_feature_compat; /* compatible feature set */ ++ __u32 s_feature_incompat; /* incompatible feature set */ ++ __u32 s_feature_ro_compat; /* readonly-compatible feature set */ ++ __u8 s_uuid[16]; /* 128-bit uuid for volume */ ++ char s_volume_name[16]; /* volume name */ ++ char s_last_mounted[64]; /* directory where last mounted */ ++ __u32 s_algorithm_usage_bitmap; /* For compression */ ++ /* ++ * Performance hints. Directory preallocation should only ++ * happen if the EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is on. ++ */ ++ __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/ ++ __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ ++ __u16 s_reserved_gdt_blocks;/* Per group table for online growth */ ++ /* ++ * Journaling support valid if EXT2_FEATURE_COMPAT_HAS_JOURNAL set. ++ */ ++ __u8 s_journal_uuid[16]; /* uuid of journal superblock */ ++ __u32 s_journal_inum; /* inode number of journal file */ ++ __u32 s_journal_dev; /* device number of journal file */ ++ __u32 s_last_orphan; /* start of list of inodes to delete */ ++ __u32 s_hash_seed[4]; /* HTREE hash seed */ ++ __u8 s_def_hash_version; /* Default hash version to use */ ++ __u8 s_jnl_backup_type; /* Default type of journal backup */ ++ __u16 s_reserved_word_pad; ++ __u32 s_default_mount_opts; ++ __u32 s_first_meta_bg; /* First metablock group */ ++ __u32 s_mkfs_time; /* When the filesystem was created */ ++ __u32 s_jnl_blocks[17]; /* Backup of the journal inode */ ++ __u32 s_reserved[172]; /* Padding to the end of the block */ + }; + + struct ext2_group_desc +@@ -218,6 +263,9 @@ struct ext2_dir_entry + #define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32)) + #define EXT2_ADDR_PER_BLOCK_BITS(s) (log2(EXT2_ADDR_PER_BLOCK(s))) + ++#define EXT2_INODE_SIZE(s) (SUPERBLOCK->s_inode_size) ++#define EXT2_INODES_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s)/EXT2_INODE_SIZE(s)) ++ + /* linux/ext2_fs.h */ + #define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) + /* kind of from ext2/super.c */ +@@ -553,7 +601,7 @@ ext2fs_dir (char *dirname) + gdp = GROUP_DESC; + ino_blk = gdp[desc].bg_inode_table + + (((current_ino - 1) % (SUPERBLOCK->s_inodes_per_group)) +- >> log2 (EXT2_BLOCK_SIZE (SUPERBLOCK) / sizeof (struct ext2_inode))); ++ >> log2 (EXT2_INODES_PER_BLOCK (SUPERBLOCK))); + #ifdef E2DEBUG + printf ("inode table fsblock=%d\n", ino_blk); + #endif /* E2DEBUG */ +@@ -565,13 +613,12 @@ ext2fs_dir (char *dirname) + /* reset indirect blocks! */ + mapblock2 = mapblock1 = -1; + +- raw_inode = INODE + +- ((current_ino - 1) +- & (EXT2_BLOCK_SIZE (SUPERBLOCK) / sizeof (struct ext2_inode) - 1)); ++ raw_inode = (struct ext2_inode *)((char *)INODE + ++ ((current_ino - 1) & (EXT2_INODES_PER_BLOCK (SUPERBLOCK) - 1)) * ++ EXT2_INODE_SIZE (SUPERBLOCK)); + #ifdef E2DEBUG + printf ("ipb=%d, sizeof(inode)=%d\n", +- (EXT2_BLOCK_SIZE (SUPERBLOCK) / sizeof (struct ext2_inode)), +- sizeof (struct ext2_inode)); ++ EXT2_INODES_PER_BLOCK (SUPERBLOCK), EXT2_INODE_SIZE (SUPERBLOCK)); + printf ("inode=%x, raw_inode=%x\n", INODE, raw_inode); + printf ("offset into inode table block=%d\n", (int) raw_inode - (int) INODE); + for (i = (unsigned char *) INODE; i <= (unsigned char *) raw_inode; |