Commit 1c0f3462 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

[PATCH] Move unreleasable pages onto the active list

With some workloads a large number of pages coming off the LRU are
pinned blockdev pagecache - things like ext2 group descriptors, pages
which have buffers in the per-cpu buffer LRUs, etc.

They keep churning around the inactive list, reducing the overall page
reclaim effectiveness.

So move these pages onto the active list.
parent 32b51ef2
No related merge requests found
......@@ -364,7 +364,7 @@ shrink_list(struct list_head *page_list, unsigned int gfp_mask,
*/
if (PagePrivate(page)) {
if (!try_to_release_page(page, gfp_mask))
goto keep_locked;
goto activate_locked;
if (!mapping && page_count(page) == 1)
goto free_it;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment