From: Pankaj Raghav <p.raghav@xxxxxxxxxxx> Allocate folios with mapping_min_order order in page_cache_ra_unbounded(). Also adjust the accounting to take the folio_nr_pages in the loop. Signed-off-by: Pankaj Raghav <p.raghav@xxxxxxxxxxx> --- mm/readahead.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 5c4e7ee64dc1..2a9e9020b7cf 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -250,7 +250,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl, continue; } - folio = filemap_alloc_folio(gfp_mask, 0); + folio = filemap_alloc_folio(gfp_mask, + mapping_min_folio_order(mapping)); if (!folio) break; if (filemap_add_folio(mapping, folio, index + i, @@ -264,7 +265,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl, if (i == nr_to_read - lookahead_size) folio_set_readahead(folio); ractl->_workingset |= folio_test_workingset(folio); - ractl->_nr_pages++; + ractl->_nr_pages += folio_nr_pages(folio); + i += folio_nr_pages(folio) - 1; } /* -- 2.40.1
