Commit bd8fbd8a authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Tom Rini
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ext4: add support for filesystems without JOURNAL

JOURNAL is optional for EXT4 (and EXT3) filesystems, so add support for
skipping it. This fixes corrupting EXT4 volumes without JOURNAL after
using uboot's 'ext4write' command.
Signed-off-by: default avatarMarek Szyprowski <>
Reviewed-by: Lukasz Majewski's avatarLukasz Majewski <>
parent 1c9f8f64
......@@ -645,6 +645,10 @@ void ext4fs_update_journal(void)
struct ext_filesystem *fs = get_fs();
long int blknr;
int i;
if (!(fs->sb->feature_compatibility & EXT4_FEATURE_COMPAT_HAS_JOURNAL))
ext4fs_read_inode(ext4fs_root, EXT2_JOURNAL_INO, &inode_journal);
blknr = read_allocated_block(&inode_journal, jrnl_blk_idx++, NULL);
......@@ -17,6 +17,8 @@
#ifndef __EXT4_JRNL__
#define __EXT4_JRNL__
#define EXT2_JOURNAL_INO 8 /* Journal inode */
#define EXT2_JOURNAL_SUPERBLOCK 0 /* Journal Superblock number */
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