#include "darray.h"
#include "subvolume_types.h"
+void bch2_snapshot_tree_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
+int bch2_snapshot_tree_invalid(const struct bch_fs *, struct bkey_s_c,
+ unsigned, struct printbuf *);
+
+#define bch2_bkey_ops_snapshot_tree ((struct bkey_ops) { \
+ .key_invalid = bch2_snapshot_tree_invalid, \
+ .val_to_text = bch2_snapshot_tree_to_text, \
+ .min_val_size = 8, \
+})
+
+int bch2_snapshot_tree_lookup(struct btree_trans *, u32, struct bch_snapshot_tree *);
+
void bch2_snapshot_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
int bch2_snapshot_invalid(const struct bch_fs *, struct bkey_s_c,
unsigned, struct printbuf *);
-int bch2_mark_snapshot(struct btree_trans *, struct bkey_s_c,
- struct bkey_s_c, unsigned);
+int bch2_mark_snapshot(struct btree_trans *, enum btree_id, unsigned,
+ struct bkey_s_c, struct bkey_s_c, unsigned);
#define bch2_bkey_ops_snapshot ((struct bkey_ops) { \
.key_invalid = bch2_snapshot_invalid, \
.val_to_text = bch2_snapshot_to_text, \
.atomic_trigger = bch2_mark_snapshot, \
+ .min_val_size = 24, \
})
static inline struct snapshot_t *snapshot_t(struct bch_fs *c, u32 id)
return snapshot_t(c, id)->parent;
}
+static inline u32 bch2_snapshot_root(struct bch_fs *c, u32 id)
+{
+ u32 parent;
+
+ while ((parent = bch2_snapshot_parent(c, id)))
+ id = parent;
+ return id;
+}
+
static inline u32 bch2_snapshot_equiv(struct bch_fs *c, u32 id)
{
return snapshot_t(c, id)->equiv;
{
int ret;
- BUG_ON(snapshot_list_has_id(s, id));
+ EBUG_ON(snapshot_list_has_id(s, id));
ret = darray_push(s, id);
if (ret)
bch_err(c, "error reallocating snapshot_id_list (size %zu)", s->size);
return ret;
}
+int bch2_fs_check_snapshot_trees(struct bch_fs *);
int bch2_fs_check_snapshots(struct bch_fs *);
int bch2_fs_check_subvols(struct bch_fs *);
#define bch2_bkey_ops_subvolume ((struct bkey_ops) { \
.key_invalid = bch2_subvolume_invalid, \
.val_to_text = bch2_subvolume_to_text, \
+ .min_val_size = 16, \
})
int bch2_subvolume_get(struct btree_trans *, unsigned,
int bch2_delete_dead_snapshots(struct bch_fs *);
void bch2_delete_dead_snapshots_async(struct bch_fs *);
-int bch2_subvolume_delete(struct btree_trans *, u32);
int bch2_subvolume_unlink(struct btree_trans *, u32);
int bch2_subvolume_create(struct btree_trans *, u64, u32,
u32 *, u32 *, bool);