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bcachefs: bch_snapshot::btime

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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>
This commit is contained in:
Kent Overstreet 2024-01-20 23:35:41 -05:00
parent 7be0208fc9
commit d32088f2f2
2 changed files with 3 additions and 0 deletions
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1
fs/bcachefs/bcachefs_format.h
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@ -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)

2
fs/bcachefs/snapshot.c
View File

@ -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));