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path: root/fs/bcachefs/alloc_foreground.c
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-rw-r--r--fs/bcachefs/alloc_foreground.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/bcachefs/alloc_foreground.c b/fs/bcachefs/alloc_foreground.c
index b375ad610acd..b58525ec7b4d 100644
--- a/fs/bcachefs/alloc_foreground.c
+++ b/fs/bcachefs/alloc_foreground.c
@@ -511,7 +511,8 @@ again:
bch2_dev_usage_read_fast(ca, &req->usage);
avail = dev_buckets_free(ca, req->usage, req->watermark);
- if (req->usage.buckets[BCH_DATA_need_discard] > avail)
+ if (req->usage.buckets[BCH_DATA_need_discard] >
+ min(avail, ca->mi.nbuckets >> 7))
bch2_dev_do_discards(ca);
if (req->usage.buckets[BCH_DATA_need_gc_gens] > avail)