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-rw-r--r--c_src/libbcachefs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/c_src/libbcachefs.c b/c_src/libbcachefs.c
index 2abf488d..eb99535f 100644
--- a/c_src/libbcachefs.c
+++ b/c_src/libbcachefs.c
@@ -315,7 +315,7 @@ struct bch_sb *bch2_format(struct bch_opt_strs fs_opt_strs,
* means we're being run from the migrate tool and we could be
* overwriting existing data if we write to the end of the disk:
*/
- if (i->sb_offset == BCH_SB_SECTOR) {
+ if (i->sb_offset == BCH_SB_SECTOR && !opts.no_sb_at_end) {
struct bch_sb_layout *l = &sb.sb->layout;
u64 backup_sb = size_sectors - (1 << l->sb_max_size_bits);