Update mke2fs to use the helper function to determine if group descriptors
should have checksums calculated. Since metadata_csum supersedes uninit_bg,
quietly drop uninit_bg if metadata_csum is set, so that older kernels don't
get confused.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
misc/mke2fs.c | 14 +++++++++++---
1 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 92b80e9..61b332a 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -1936,6 +1936,13 @@ profile_error:
if (extended_opts)
parse_extended_opts(&fs_param, extended_opts);
+ /* Don't allow user to set both metadata_csum and uninit_bg bits. */
+ if ((fs_param.s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ fs_param.s_feature_ro_compat &=
+ ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
+
/* Since sparse_super is the default, we would only have a problem
* here if it was explicitly disabled.
*/
@@ -2048,7 +2055,8 @@ static int should_do_undo(const char *name)
int csum_flag, force_undo;
csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
force_undo = get_int_from_profile(fs_types, "force_undo", 0);
if (!force_undo && (!csum_flag || !lazy_itable_init))
return 0;
@@ -2325,6 +2333,7 @@ int main (int argc, char *argv[])
(fs_param.s_feature_ro_compat &
(EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
fs->super->s_kbytes_written = 1;
@@ -2472,8 +2481,7 @@ int main (int argc, char *argv[])
* inodes as unused; we want e2fsck to consider all
* inodes as potentially containing recoverable data.
*/
- if (fs->super->s_feature_ro_compat &
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+ if (ext2fs_has_group_desc_csum(fs)) {
for (i = 1; i < fs->group_desc_count; i++)
ext2fs_bg_itable_unused_set(fs, i, 0);
}
--
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