diff options
Diffstat (limited to 'fs/bcachefs/btree_cache.c')
| -rw-r--r-- | fs/bcachefs/btree_cache.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/bcachefs/btree_cache.c b/fs/bcachefs/btree_cache.c index 19c219cb317b..76ff1f382794 100644 --- a/fs/bcachefs/btree_cache.c +++ b/fs/bcachefs/btree_cache.c @@ -280,13 +280,19 @@ static unsigned long bch2_btree_cache_scan(struct shrinker *shrink, i = 0; list_for_each_entry_safe(b, t, &bc->freeable, list) { + /* + * Leave a few nodes on the freeable list, so that a btree split + * won't have to hit the system allocator: + */ + if (++i <= 3) + continue; + touched++; if (freed >= nr) break; - if (++i > 3 && - !btree_node_reclaim(c, b)) { + if (!btree_node_reclaim(c, b)) { btree_node_data_free(c, b); six_unlock_write(&b->c.lock); six_unlock_intent(&b->c.lock); |