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Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0e9236a745b8..cc18ba50a61c 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -709,6 +709,14 @@ error_free_page:
return -EINVAL;
}
+u8 *btrfs_sb_fsid_ptr(struct btrfs_super_block *sb)
+{
+ bool has_metadata_uuid = (btrfs_super_incompat_flags(sb) &
+ BTRFS_FEATURE_INCOMPAT_METADATA_UUID);
+
+ return has_metadata_uuid ? sb->metadata_uuid : sb->fsid;
+}
+
/*
* Handle scanned device having its CHANGING_FSID_V2 flag set and the fs_devices
* being created with a disk that has already completed its fsid change. Such
@@ -3056,15 +3064,16 @@ struct extent_map *btrfs_get_chunk_map(struct btrfs_fs_info *fs_info,
read_unlock(&em_tree->lock);
if (!em) {
- btrfs_crit(fs_info, "unable to find logical %llu length %llu",
+ btrfs_crit(fs_info,
+ "unable to find chunk map for logical %llu length %llu",
logical, length);
return ERR_PTR(-EINVAL);
}
- if (em->start > logical || em->start + em->len < logical) {
+ if (em->start > logical || em->start + em->len <= logical) {
btrfs_crit(fs_info,
- "found a bad mapping, wanted %llu-%llu, found %llu-%llu",
- logical, length, em->start, em->start + em->len);
+ "found a bad chunk map, wanted %llu-%llu, found %llu-%llu",
+ logical, logical + length, em->start, em->start + em->len);
free_extent_map(em);
return ERR_PTR(-EINVAL);
}