From be5a9e17a2ccbecfb7020aa1938e2c62d8a9189c Mon Sep 17 00:00:00 2001
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: Tue, 27 Feb 2024 17:42:47 +0000
Subject: [PATCH] memcg: remove mem_cgroup_uncharge_list()
All users have been converted to mem_cgroup_uncharge_folios() so we can
remove this API.
Link: https://lkml.kernel.org/r/20240227174254.710559-14-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>
---
include/linux/memcontrol.h | 12 ------------
mm/memcontrol.c | 19 -------------------
2 files changed, 31 deletions(-)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index b7f5e0c17de7d..394fd0a887ae7 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -713,14 +713,6 @@ static inline void mem_cgroup_uncharge(struct folio *folio)
__mem_cgroup_uncharge(folio);
}
-void __mem_cgroup_uncharge_list(struct list_head *page_list);
-static inline void mem_cgroup_uncharge_list(struct list_head *page_list)
-{
- if (mem_cgroup_disabled())
- return;
- __mem_cgroup_uncharge_list(page_list);
-}
-
void __mem_cgroup_uncharge_folios(struct folio_batch *folios);
static inline void mem_cgroup_uncharge_folios(struct folio_batch *folios)
{
@@ -1301,10 +1293,6 @@ static inline void mem_cgroup_uncharge(struct folio *folio)
{
}
-static inline void mem_cgroup_uncharge_list(struct list_head *page_list)
-{
-}
-
static inline void mem_cgroup_uncharge_folios(struct folio_batch *folios)
{
}
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2edb250d131b6..fabce2b50c695 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -7513,25 +7513,6 @@ void __mem_cgroup_uncharge(struct folio *folio)
uncharge_batch(&ug);
}
-/**
- * __mem_cgroup_uncharge_list - uncharge a list of page
- * @page_list: list of pages to uncharge
- *
- * Uncharge a list of pages previously charged with
- * __mem_cgroup_charge().
- */
-void __mem_cgroup_uncharge_list(struct list_head *page_list)
-{
- struct uncharge_gather ug;
- struct folio *folio;
-
- uncharge_gather_clear(&ug);
- list_for_each_entry(folio, page_list, lru)
- uncharge_folio(folio, &ug);
- if (ug.memcg)
- uncharge_batch(&ug);
-}
-
void __mem_cgroup_uncharge_folios(struct folio_batch *folios)
{
struct uncharge_gather ug;
--
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