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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-07-12 19:33:12 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-07-16 17:32:33 -0400 |
| commit | 6a1c4323defd18ca732c13d9abf4204ea1a4182f (patch) | |
| tree | c2b9636fe0fe4b00220b86572c434392c09825c4 | |
| parent | b4d6e204f892846b435ad5df89306a8ad56191f9 (diff) | |
bcachefs: Tweak threshold for allocator triggering discards
The allocator path has a "if we're really low on free buckets, check if
we should issue discards" - tweak this to also trigger discards if more
than 1/128th of the device is in need_discard state.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/alloc_foreground.c | 3 |
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) |