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Diffstat (limited to 'fs/btrfs/delayed-ref.h')
-rw-r--r--fs/btrfs/delayed-ref.h51
1 files changed, 29 insertions, 22 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index e22fba272e4f..91a3aabad150 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -186,8 +186,8 @@ enum btrfs_ref_type {
struct btrfs_data_ref {
/* For EXTENT_DATA_REF */
- /* Root which refers to this data extent */
- u64 ref_root;
+ /* Original root this data extent belongs to */
+ u64 owning_root;
/* Inode which refers to this data extent */
u64 ino;
@@ -210,11 +210,11 @@ struct btrfs_tree_ref {
int level;
/*
- * Root which refers to this tree block.
+ * Root which owns this tree block.
*
* For TREE_BLOCK_REF (skinny metadata, either inline or keyed)
*/
- u64 root;
+ u64 owning_root;
/* For non-skinny metadata, no special member needed */
};
@@ -231,17 +231,10 @@ struct btrfs_ref {
*/
bool skip_qgroup;
- /*
- * Optional. For which root is this modification.
- * Mostly used for qgroup optimization.
- *
- * When unset, data/tree ref init code will populate it.
- * In certain cases, we're modifying reference for a different root.
- * E.g. COW fs tree blocks for balance.
- * In that case, tree_ref::root will be fs tree, but we're doing this
- * for reloc tree, then we should set @real_root to reloc tree.
- */
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+ /* Through which root is this modification. */
u64 real_root;
+#endif
u64 bytenr;
u64 len;
@@ -271,26 +264,40 @@ static inline void btrfs_init_generic_ref(struct btrfs_ref *generic_ref,
}
static inline void btrfs_init_tree_ref(struct btrfs_ref *generic_ref,
- int level, u64 root)
+ int level, u64 root, u64 mod_root, bool skip_qgroup)
{
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
/* If @real_root not set, use @root as fallback */
- if (!generic_ref->real_root)
- generic_ref->real_root = root;
+ generic_ref->real_root = mod_root ?: root;
+#endif
generic_ref->tree_ref.level = level;
- generic_ref->tree_ref.root = root;
+ generic_ref->tree_ref.owning_root = root;
generic_ref->type = BTRFS_REF_METADATA;
+ if (skip_qgroup || !(is_fstree(root) &&
+ (!mod_root || is_fstree(mod_root))))
+ generic_ref->skip_qgroup = true;
+ else
+ generic_ref->skip_qgroup = false;
+
}
static inline void btrfs_init_data_ref(struct btrfs_ref *generic_ref,
- u64 ref_root, u64 ino, u64 offset)
+ u64 ref_root, u64 ino, u64 offset, u64 mod_root,
+ bool skip_qgroup)
{
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
/* If @real_root not set, use @root as fallback */
- if (!generic_ref->real_root)
- generic_ref->real_root = ref_root;
- generic_ref->data_ref.ref_root = ref_root;
+ generic_ref->real_root = mod_root ?: ref_root;
+#endif
+ generic_ref->data_ref.owning_root = ref_root;
generic_ref->data_ref.ino = ino;
generic_ref->data_ref.offset = offset;
generic_ref->type = BTRFS_REF_DATA;
+ if (skip_qgroup || !(is_fstree(ref_root) &&
+ (!mod_root || is_fstree(mod_root))))
+ generic_ref->skip_qgroup = true;
+ else
+ generic_ref->skip_qgroup = false;
}
static inline struct btrfs_delayed_extent_op *