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-rw-r--r--fs/btrfs/tree-checker.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 6eccf84964..75c78a5556 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1793,6 +1793,11 @@ enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf)
return BTRFS_TREE_BLOCK_INVALID_LEVEL;
}
+ if (unlikely(!btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_WRITTEN))) {
+ generic_err(leaf, 0, "invalid flag for leaf, WRITTEN not set");
+ return BTRFS_TREE_BLOCK_WRITTEN_NOT_SET;
+ }
+
/*
* Extent buffers from a relocation tree have a owner field that
* corresponds to the subvolume tree they are based on. So just from an
@@ -1854,6 +1859,7 @@ enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf)
for (slot = 0; slot < nritems; slot++) {
u32 item_end_expected;
u64 item_data_end;
+ enum btrfs_tree_block_status ret;
btrfs_item_key_to_cpu(leaf, &key, slot);
@@ -1909,21 +1915,10 @@ enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf)
return BTRFS_TREE_BLOCK_INVALID_OFFSETS;
}
- /*
- * We only want to do this if WRITTEN is set, otherwise the leaf
- * may be in some intermediate state and won't appear valid.
- */
- if (btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_WRITTEN)) {
- enum btrfs_tree_block_status ret;
-
- /*
- * Check if the item size and content meet other
- * criteria
- */
- ret = check_leaf_item(leaf, &key, slot, &prev_key);
- if (unlikely(ret != BTRFS_TREE_BLOCK_CLEAN))
- return ret;
- }
+ /* Check if the item size and content meet other criteria. */
+ ret = check_leaf_item(leaf, &key, slot, &prev_key);
+ if (unlikely(ret != BTRFS_TREE_BLOCK_CLEAN))
+ return ret;
prev_key.objectid = key.objectid;
prev_key.type = key.type;
@@ -1953,6 +1948,11 @@ enum btrfs_tree_block_status __btrfs_check_node(struct extent_buffer *node)
int level = btrfs_header_level(node);
u64 bytenr;
+ if (unlikely(!btrfs_header_flag(node, BTRFS_HEADER_FLAG_WRITTEN))) {
+ generic_err(node, 0, "invalid flag for node, WRITTEN not set");
+ return BTRFS_TREE_BLOCK_WRITTEN_NOT_SET;
+ }
+
if (unlikely(level <= 0 || level >= BTRFS_MAX_LEVEL)) {
generic_err(node, 0,
"invalid level for node, have %d expect [1, %d]",