X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libbcachefs%2Fsubvolume.h;h=8d4c50f4cd059b05743fac7d5d319f16a60c93a8;hb=8d5e53b88aaafe7c01fc369e52dbd1fc8955a77d;hp=b6740eab78d3d588f0813e9a2433d45196d7271c;hpb=a104f0407b7f5de54972389ef10e11dd8c525a96;p=bcachefs-tools-debian diff --git a/libbcachefs/subvolume.h b/libbcachefs/subvolume.h index b6740ea..8d4c50f 100644 --- a/libbcachefs/subvolume.h +++ b/libbcachefs/subvolume.h @@ -5,105 +5,9 @@ #include "darray.h" #include "subvolume_types.h" -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 *); +enum bkey_invalid_flags; -#define bch2_bkey_ops_snapshot ((struct bkey_ops) { \ - .key_invalid = bch2_snapshot_invalid, \ - .val_to_text = bch2_snapshot_to_text, \ -}) - -int bch2_mark_snapshot(struct btree_trans *, struct bkey_s_c, - struct bkey_s_c, unsigned); - -static inline struct snapshot_t *snapshot_t(struct bch_fs *c, u32 id) -{ - return genradix_ptr(&c->snapshots, U32_MAX - id); -} - -static inline u32 bch2_snapshot_parent(struct bch_fs *c, u32 id) -{ - return snapshot_t(c, id)->parent; -} - -static inline u32 bch2_snapshot_equiv(struct bch_fs *c, u32 id) -{ - return snapshot_t(c, id)->equiv; -} - -static inline bool bch2_snapshot_is_equiv(struct bch_fs *c, u32 id) -{ - return id == snapshot_t(c, id)->equiv; -} - -static inline u32 bch2_snapshot_internal_node(struct bch_fs *c, u32 id) -{ - struct snapshot_t *s = snapshot_t(c, id); - - return s->children[0] || s->children[1]; -} - -static inline u32 bch2_snapshot_sibling(struct bch_fs *c, u32 id) -{ - struct snapshot_t *s; - u32 parent = bch2_snapshot_parent(c, id); - - if (!parent) - return 0; - - s = snapshot_t(c, bch2_snapshot_parent(c, id)); - if (id == s->children[0]) - return s->children[1]; - if (id == s->children[1]) - return s->children[0]; - return 0; -} - -static inline bool bch2_snapshot_is_ancestor(struct bch_fs *c, u32 id, u32 ancestor) -{ - while (id && id < ancestor) - id = bch2_snapshot_parent(c, id); - - return id == ancestor; -} - -static inline bool snapshot_list_has_id(snapshot_id_list *s, u32 id) -{ - u32 *i; - - darray_for_each(*s, i) - if (*i == id) - return true; - return false; -} - -static inline bool snapshot_list_has_ancestor(struct bch_fs *c, snapshot_id_list *s, u32 id) -{ - u32 *i; - - darray_for_each(*s, i) - if (bch2_snapshot_is_ancestor(c, id, *i)) - return true; - return false; -} - -static inline int snapshot_list_add(struct bch_fs *c, snapshot_id_list *s, u32 id) -{ - int ret; - - BUG_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_snapshots(struct bch_fs *); -int bch2_fs_check_subvols(struct bch_fs *); - -void bch2_fs_snapshots_exit(struct bch_fs *); -int bch2_fs_snapshots_start(struct bch_fs *); +int bch2_check_subvols(struct bch_fs *); int bch2_subvolume_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *); @@ -112,22 +16,16 @@ void bch2_subvolume_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c) #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, bool, int, struct bch_subvolume *); -int bch2_snapshot_get_subvol(struct btree_trans *, u32, - struct bch_subvolume *); int bch2_subvolume_get_snapshot(struct btree_trans *, u32, u32 *); -/* only exported for tests: */ -int bch2_snapshot_node_create(struct btree_trans *, u32, - u32 *, u32 *, 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);