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bcachefs: initial gc no longer needs to touch every node

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-04-04 23:01:54 -04:00 committed by Kent Overstreet
parent 1dd7f9d98d
commit 4881fdb756
1 changed files with 4 additions and 12 deletions
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16
fs/bcachefs/btree_gc.c
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@ -210,7 +210,10 @@ static int bch2_gc_btree(struct bch_fs *c, enum btree_id btree_id,
struct btree_iter *iter;
struct btree *b;
struct range_checks r;
unsigned depth = btree_node_type_needs_gc(btree_id) ? 0 : 1;
unsigned depth = metadata_only ? 1
: expensive_debug_checks(c) ? 0
: !btree_node_type_needs_gc(btree_id) ? 1
: 0;
u8 max_stale;
int ret = 0;
@ -218,17 +221,6 @@ static int bch2_gc_btree(struct bch_fs *c, enum btree_id btree_id,
gc_pos_set(c, gc_pos_btree(btree_id, POS_MIN, 0));
/*
* if expensive_debug_checks is on, run range_checks on all leaf nodes:
*
* and on startup, we have to read every btree node (XXX: only if it was
* an unclean shutdown)
*/
if (metadata_only)
depth = 1;
else if (initial || expensive_debug_checks(c))
depth = 0;
btree_node_range_checks_init(&r, depth);
__for_each_btree_node(&trans, iter, btree_id, POS_MIN,