Re: [PATCH 01/17] mm: sl[au]b: Add knowledge of PFMEMALLOC reserve pages

[a.p.zijlstra@chello.nl: Original implementation]
Signed-off-by: Mel Gorman <mgorman@suse.de>
---

diff --git a/mm/slab.c b/mm/slab.c
index e901a36..b190cac 100644
--- a/mm/slab.c
+++ b/mm/slab.c

@@ -1851,6 +1984,7 @@ static void kmem_freepages(struct kmem_cache *cachep, void *addr)
 	while (i--) {
 		BUG_ON(!PageSlab(page));
 		__ClearPageSlab(page);
+		__ClearPageSlabPfmemalloc(page);
 		page++;
 	}
 	if (current->reclaim_state)

@@ -3120,16 +3254,19 @@ bad:

diff --git a/mm/slub.c b/mm/slub.c
index 8c691fa..43738c9 100644
--- a/mm/slub.c
+++ b/mm/slub.c

@@ -1414,6 +1418,7 @@ static void __free_slab(struct kmem_cache *s, struct page *page)
 		-pages);
 
 	__ClearPageSlab(page);
+	__ClearPageSlabPfmemalloc(page);
 	reset_page_mapcount(page);
 	if (current->reclaim_state)
 		current->reclaim_state->reclaimed_slab += pages;