From: Pankaj Raghav <[email protected]>
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 <[email protected]>
---
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