1 files changed, 21 insertions, 3 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index fa57965f60a3..94bed61b799f 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -270,9 +270,27 @@ static int exclude_super_stripes(struct btrfs_root *root,
                         return ret;
 
                 while (nr--) {
-                        cache->bytes_super += stripe_len;
-                        ret = add_excluded_extent(root, logical[nr],
-                                                  stripe_len);
+                        u64 start, len;
+
+                        if (logical[nr] > cache->key.objectid +
+                            cache->key.offset)
+                                continue;
+
+                        if (logical[nr] + stripe_len <= cache->key.objectid)
+                                continue;
+
+                        start = logical[nr];
+                        if (start < cache->key.objectid) {
+                                start = cache->key.objectid;
+                                len = (logical[nr] + stripe_len) - start;
+                        } else {
+                                len = min_t(u64, stripe_len,
+                                            cache->key.objectid +
+                                            cache->key.offset - start);
+                        }
+
+                        cache->bytes_super += len;
+                        ret = add_excluded_extent(root, start, len);
                         if (ret) {
                                 kfree(logical);
                                 return ret;