diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2021-11-11 15:50:22 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:09:52 -0400 |
| commit | 637de729fc86effe021bd067cccd68efd07f59c0 (patch) | |
| tree | 38ee967775072e298af2fc5377771ca5516d74e0 | |
| parent | c782c5832e9251ab6f4df837932d959f3e02ab25 (diff) | |
| download | lwn-637de729fc86effe021bd067cccd68efd07f59c0.tar.gz lwn-637de729fc86effe021bd067cccd68efd07f59c0.zip | |
bcachefs: Ensure btree node cache is not more than half dirty
Tweak journal reclaim to ensure the btree node cache isn't more
than half dirty so that memory reclaim can always make progress - the
same as we do for the btree key cache.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
| -rw-r--r-- | fs/bcachefs/journal_reclaim.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/bcachefs/journal_reclaim.c b/fs/bcachefs/journal_reclaim.c index e8b7ed8e1333..0f3c103e63ee 100644 --- a/fs/bcachefs/journal_reclaim.c +++ b/fs/bcachefs/journal_reclaim.c @@ -640,6 +640,9 @@ static int __bch2_journal_reclaim(struct journal *j, bool direct, bool kicked) if (fifo_free(&j->pin) <= 32) min_nr = 1; + if (atomic_read(&c->btree_cache.dirty) * 2 > c->btree_cache.used) + min_nr = 1; + min_key_cache = min(bch2_nr_btree_keys_need_flush(c), (size_t) 128); trace_and_count(c, journal_reclaim_start, c, |