Write out reserved inodes with full checksums when writing out a zeroed table.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
misc/mke2fs.c | 29 ++++++++++++++++++++++++++++-
1 files changed, 28 insertions(+), 1 deletions(-)
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index d80c0b2..28485e3 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -306,6 +306,27 @@ _("Warning: the backup superblock/group descriptors at block %u contain\n"
ext2fs_badblocks_list_iterate_end(bb_iter);
}
+static void write_reserved_inodes(ext2_filsys fs)
+{
+ errcode_t retval;
+ ext2_ino_t ino;
+ struct ext2_inode *inode;
+
+ retval = ext2fs_get_mem(EXT2_INODE_SIZE(fs->super), &inode);
+ if (retval) {
+ com_err("inode_init", retval,
+ "while allocating memory");
+ exit(1);
+ }
+ bzero(inode, EXT2_INODE_SIZE(fs->super));
+
+ for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
+ ext2fs_write_inode_full(fs, ino, inode,
+ EXT2_INODE_SIZE(fs->super));
+
+ ext2fs_free_mem(&inode);
+}
+
static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
{
errcode_t retval;
@@ -351,6 +372,12 @@ static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
ext2fs_zero_blocks2(0, 0, 0, 0, 0);
ext2fs_numeric_progress_close(fs, &progress,
_("done \n"));
+
+ /* Reserved inodes must always have correct checksums */
+ if (fs->super->s_creator_os == EXT2_OS_LINUX &&
+ fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
+ write_reserved_inodes(fs);
}
static void create_root_dir(ext2_filsys fs)
@@ -870,7 +897,7 @@ static __u32 ok_features[3] = {
#ifdef CONFIG_QUOTA
EXT4_FEATURE_RO_COMPAT_QUOTA|
#endif
- 0
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
};
--
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