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bcachefs: don't clear accessed bit in btree node fill

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Seeing strange performance issues that might be caused by memory
pressure causing prefetched nodes to be evicted before they're used.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-01-03 15:25:08 -05:00
parent 49a5192c0e
commit b819f30855
1 changed files with 0 additions and 6 deletions
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6
fs/bcachefs/btree_cache.c
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@ -719,12 +719,6 @@ static noinline struct btree *bch2_btree_node_fill(struct btree_trans *trans,
if (IS_ERR(b))
return b;
/*
* Btree nodes read in from disk should not have the accessed bit set
* initially, so that linear scans don't thrash the cache:
*/
clear_btree_node_accessed(b);
bkey_copy(&b->key, k);
if (bch2_btree_node_hash_insert(bc, b, level, btree_id)) {
/* raced with another fill: */