bcachefs: bch_snapshot::btime
Add a field to bch_snapshot for creation time; this will be important
when we start exposing the snapshot tree to userspace.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
diff --git a/fs/bcachefs/bcachefs_format.h b/fs/bcachefs/bcachefs_format.h
index 0d5ac41..a760361 100644
--- a/fs/bcachefs/bcachefs_format.h
+++ b/fs/bcachefs/bcachefs_format.h
@@ -1149,6 +1149,7 @@ struct bch_snapshot {
__le32 tree;
__le32 depth;
__le32 skip[3];
+ bch_le128 btime;
};
LE32_BITMASK(BCH_SNAPSHOT_DELETED, struct bch_snapshot, flags, 0, 1)
diff --git a/fs/bcachefs/snapshot.c b/fs/bcachefs/snapshot.c
index cdcff4e..45f67e8 100644
--- a/fs/bcachefs/snapshot.c
+++ b/fs/bcachefs/snapshot.c
@@ -1053,6 +1053,8 @@ static int create_snapids(struct btree_trans *trans, u32 parent, u32 tree,
n->v.subvol = cpu_to_le32(snapshot_subvols[i]);
n->v.tree = cpu_to_le32(tree);
n->v.depth = cpu_to_le32(depth);
+ n->v.btime.lo = cpu_to_le64(bch2_current_time(c));
+ n->v.btime.hi = 0;
for (j = 0; j < ARRAY_SIZE(n->v.skip); j++)
n->v.skip[j] = cpu_to_le32(bch2_snapshot_skiplist_get(c, parent));
