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

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
commit b819f30855