diff options
| -rw-r--r-- | btrfs-convert.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/btrfs-convert.c b/btrfs-convert.c index c503bf6e..bbd19bbc 100644 --- a/btrfs-convert.c +++ b/btrfs-convert.c @@ -2675,6 +2675,12 @@ next_extent: if (bytenr >= total_bytes) break; ret = pwrite(fd, buf, sectorsize, bytenr); + if (ret != sectorsize) { + fprintf(stderr, + "error during zeroing supreblock %d: %d\n", + i, ret); + goto fail; + } } sb_bytenr = (u64)-1; |