diff options
Diffstat (limited to 'libbcachefs/subvolume.h')
| -rw-r--r-- | libbcachefs/subvolume.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/libbcachefs/subvolume.h b/libbcachefs/subvolume.h index 6d134dab..6905e91a 100644 --- a/libbcachefs/subvolume.h +++ b/libbcachefs/subvolume.h @@ -42,6 +42,15 @@ static inline const struct snapshot_t *snapshot_t(struct bch_fs *c, u32 id) return __snapshot_t(rcu_dereference(c->snapshots), id); } +static inline u32 bch2_snapshot_tree(struct bch_fs *c, u32 id) +{ + rcu_read_lock(); + id = snapshot_t(c, id)->tree; + rcu_read_unlock(); + + return id; +} + static inline u32 __bch2_snapshot_parent_early(struct bch_fs *c, u32 id) { return snapshot_t(c, id)->parent; @@ -157,7 +166,14 @@ static inline u32 bch2_snapshot_sibling(struct bch_fs *c, u32 id) return 0; } -bool bch2_snapshot_is_ancestor(struct bch_fs *, u32, u32); +bool __bch2_snapshot_is_ancestor(struct bch_fs *, u32, u32); + +static inline bool bch2_snapshot_is_ancestor(struct bch_fs *c, u32 id, u32 ancestor) +{ + return id == ancestor + ? true + : __bch2_snapshot_is_ancestor(c, id, ancestor); +} static inline bool bch2_snapshot_has_children(struct bch_fs *c, u32 id) { |