diff options
Diffstat (limited to 'ext4_fix_variable_sized_inodes.patch')
| -rw-r--r-- | ext4_fix_variable_sized_inodes.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/ext4_fix_variable_sized_inodes.patch b/ext4_fix_variable_sized_inodes.patch new file mode 100644 index 000000000000..d16802fb8fcc --- /dev/null +++ b/ext4_fix_variable_sized_inodes.patch @@ -0,0 +1,33 @@ +Description: Add support for ext4 variable sized inodes + This is backwardly compatible with ext2/ext3 fixed sized inodes. +Author: Colin King <colin.king@canonical.com> +Bug-Debian: https://bugs.debian.org/511121 +Bug-Ubuntu: https://bugs.launchpad.net/bugs/345488 +Last-Update: 2018-10-25 + +Index: b/stage2/fsys_ext2fs.c +=================================================================== +--- a/stage2/fsys_ext2fs.c ++++ b/stage2/fsys_ext2fs.c +@@ -652,6 +652,8 @@ + int off; /* offset within block of directory entry (off mod blocksize) */ + int loc; /* location within a directory */ + int blk; /* which data blk within dir entry (off div blocksize) */ ++ int inodes_per_block; /* number of inodes in each block */ ++ int inode_offset; /* inode offset in block */ + long map; /* fs pointer of a particular block from dir entry */ + struct ext2_dir_entry *dp; /* pointer to directory entry */ + #ifdef E2DEBUG +@@ -687,9 +689,9 @@ + return 0; + } + gdp = GROUP_DESC; +- ino_blk = gdp[desc].bg_inode_table + +- (((current_ino - 1) % (SUPERBLOCK->s_inodes_per_group)) +- >> log2 (EXT2_INODES_PER_BLOCK (SUPERBLOCK))); ++ inodes_per_block = EXT2_BLOCK_SIZE (SUPERBLOCK) / EXT2_INODE_SIZE(SUPERBLOCK); ++ inode_offset = ((current_ino - 1) % (SUPERBLOCK->s_inodes_per_group)); ++ ino_blk = gdp[desc].bg_inode_table + (inode_offset / inodes_per_block); + #ifdef E2DEBUG + printf ("inode table fsblock=%d\n", ino_blk); + #endif /* E2DEBUG */ |