diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2019-06-21 15:35:35 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-18 11:31:24 -0400 |
| commit | bd8fbd8a13b8a696aed312753f46432b19b61fd6 (patch) | |
| tree | e38b25bdf3e3e3fe4898beb658e421f9d69ee6b7 /fs/ext4 | |
| parent | 1c9f8f6412de4447c4f6fadeac1919c89de005f7 (diff) | |
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: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ext4_journal.c | 4 | ||||
| -rw-r--r-- | fs/ext4/ext4_journal.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/ext4_journal.c b/fs/ext4/ext4_journal.c index 6adbab93a6..3559daf11d 100644 --- a/fs/ext4/ext4_journal.c +++ b/fs/ext4/ext4_journal.c @@ -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)) + return; + ext4fs_read_inode(ext4fs_root, EXT2_JOURNAL_INO, &inode_journal); blknr = read_allocated_block(&inode_journal, jrnl_blk_idx++, NULL); update_descriptor_block(blknr); diff --git a/fs/ext4/ext4_journal.h b/fs/ext4/ext4_journal.h index c9cf195f33..43fb8e7664 100644 --- a/fs/ext4/ext4_journal.h +++ b/fs/ext4/ext4_journal.h @@ -17,6 +17,8 @@ #ifndef __EXT4_JRNL__ #define __EXT4_JRNL__ +#define EXT4_FEATURE_COMPAT_HAS_JOURNAL 0x0004 + #define EXT2_JOURNAL_INO 8 /* Journal inode */ #define EXT2_JOURNAL_SUPERBLOCK 0 /* Journal Superblock number */ |