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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2020-11-09 21:01:52 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:08:46 +0300 |
| commit | 6a747c4683803abb01ce246ac2faf7f171cb3872 (patch) | |
| tree | 365dc5fa2987b2aa0efb61c1965c41fe4170c131 /fs/bcachefs/journal_reclaim.c | |
| parent | 01819cfe37e864a0e7d6f208c2e5b4635c66f974 (diff) | |
| download | linux-6a747c4683803abb01ce246ac2faf7f171cb3872.tar.xz | |
bcachefs: Add accounting for dirty btree nodes/keys
This lets us improve journal reclaim, so that it now tries to make sure
no more than 3/4s of the btree node cache and btree key cache are dirty
- ensuring the shrinkers can free memory.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/journal_reclaim.c')
| -rw-r--r-- | fs/bcachefs/journal_reclaim.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/bcachefs/journal_reclaim.c b/fs/bcachefs/journal_reclaim.c index 3f57f498ce0b..da28761e7942 100644 --- a/fs/bcachefs/journal_reclaim.c +++ b/fs/bcachefs/journal_reclaim.c @@ -547,6 +547,12 @@ void bch2_journal_reclaim(struct journal *j) if (j->prereserved.reserved * 2 > j->prereserved.remaining) min_nr = 1; + + if ((atomic_read(&c->btree_cache.dirty) * 4 > + c->btree_cache.used * 3) || + (c->btree_key_cache.nr_dirty * 4 > + c->btree_key_cache.nr_keys)) + min_nr = 1; } while (journal_flush_pins(j, seq_to_flush, min_nr)); if (!bch2_journal_error(j)) |