Merge 'baserock/richardmaw/yakshave/util-linux-blkid' into baserock/morphbaserock/morph

Reviewed-by: Lars Wirzenius
Reviewed-by: Sam Thursfield

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/ext2fs/res_gdt.c b/lib/ext2fs/res_gdt.c
index 6449228c..e61c3303 100644
--- a/lib/ext2fs/res_gdt.c
+++ b/lib/ext2fs/res_gdt.c
@@ -31,6 +31,19 @@ static unsigned int list_backups(ext2_filsys fs, unsigned int *three,
 	int mult = 3;
 	unsigned int ret;
 
+	if (fs->super->s_feature_compat & EXT4_FEATURE_COMPAT_SPARSE_SUPER2) {
+		if (*min == 1) {
+			*min += 1;
+			if (fs->super->s_backup_bgs[0])
+				return fs->super->s_backup_bgs[0];
+		}
+		if (*min == 2) {
+			*min += 1;
+			if (fs->super->s_backup_bgs[1])
+				return fs->super->s_backup_bgs[1];
+		}
+		return fs->group_desc_count;
+	}
 	if (!(fs->super->s_feature_ro_compat &
 	      EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
 		ret = *min;