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authorMatthew Wilcox (Oracle) <willy@infradead.org>2024-02-27 17:42:39 +0000
committerAndrew Morton <akpm@linux-foundation.org>2024-03-04 17:01:23 -0800
commit4882c80975e2bf7241a5b043eb1dbe8df2726a29 (patch)
tree68288c41d6a2375f0025776a999441e56ad88d1a /mm/memcontrol.c
parent6871cc5742f411bf8ebbcb78b4afeb992d888228 (diff)
memcg: add mem_cgroup_uncharge_folios()
Almost identical to mem_cgroup_uncharge_list(), except it takes a folio_batch instead of a list_head. Link: https://lkml.kernel.org/r/20240227174254.710559-6-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e4864e2729e6..2edb250d131b 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -33,6 +33,7 @@
#include <linux/shmem_fs.h>
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
+#include <linux/pagevec.h>
#include <linux/vm_event_item.h>
#include <linux/smp.h>
#include <linux/page-flags.h>
@@ -7531,6 +7532,18 @@ void __mem_cgroup_uncharge_list(struct list_head *page_list)
uncharge_batch(&ug);
}
+void __mem_cgroup_uncharge_folios(struct folio_batch *folios)
+{
+ struct uncharge_gather ug;
+ unsigned int i;
+
+ uncharge_gather_clear(&ug);
+ for (i = 0; i < folios->nr; i++)
+ uncharge_folio(folios->folios[i], &ug);
+ if (ug.memcg)
+ uncharge_batch(&ug);
+}
+
/**
* mem_cgroup_replace_folio - Charge a folio's replacement.
* @old: Currently circulating folio.