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-rw-r--r--fs/btrfs/ctree.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index b33436211000..44a7e25353a6 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1225,6 +1225,8 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct extent_buffer *eb,
free_extent_buffer(eb);
__tree_mod_log_rewind(eb_rewin, time_seq, tm);
+ WARN_ON(btrfs_header_nritems(eb_rewin) >
+ BTRFS_NODEPTRS_PER_BLOCK(fs_info->fs_root));
return eb_rewin;
}
@@ -1280,6 +1282,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
else
WARN_ON(btrfs_header_level(eb) != 0);
extent_buffer_get(eb);
+ WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(root));
return eb;
}
@@ -2970,8 +2973,10 @@ static int push_node_left(struct btrfs_trans_handle *trans,
push_items * sizeof(struct btrfs_key_ptr));
if (push_items < src_nritems) {
- tree_mod_log_eb_move(root->fs_info, src, 0, push_items,
- src_nritems - push_items);
+ /*
+ * don't call tree_mod_log_eb_move here, key removal was already
+ * fully logged by tree_mod_log_eb_copy above.
+ */
memmove_extent_buffer(src, btrfs_node_key_ptr_offset(0),
btrfs_node_key_ptr_offset(push_items),
(src_nritems - push_items) *