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-rw-r--r--libbcachefs/movinggc.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/libbcachefs/movinggc.c b/libbcachefs/movinggc.c
index 4ac7e61f..61c5901f 100644
--- a/libbcachefs/movinggc.c
+++ b/libbcachefs/movinggc.c
@@ -293,17 +293,19 @@ unsigned long bch2_copygc_wait_amount(struct bch_fs *c)
{
struct bch_dev *ca;
unsigned dev_idx;
- u64 fragmented_allowed = 0, fragmented = 0;
+ s64 wait = S64_MAX, fragmented_allowed, fragmented;
for_each_rw_member(ca, c, dev_idx) {
struct bch_dev_usage usage = bch2_dev_usage_read(ca);
- fragmented_allowed += ((__dev_buckets_reclaimable(ca, usage) *
+ fragmented_allowed = ((__dev_buckets_reclaimable(ca, usage) *
ca->mi.bucket_size) >> 1);
- fragmented += usage.d[BCH_DATA_user].fragmented;
+ fragmented = usage.d[BCH_DATA_user].fragmented;
+
+ wait = min(wait, max(0LL, fragmented_allowed - fragmented));
}
- return max_t(s64, 0, fragmented_allowed - fragmented);
+ return wait;
}
static int bch2_copygc_thread(void *arg)