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authorAndrew Morton <akpm@linux-foundation.org>2023-02-01 04:25:17 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-02-01 04:25:17 +0300
commit5ab0fc155dc0cac3b74584f7bc972569b0f8a57b (patch)
treefb43458b715be3a72c872bc4ce0e7c45e6f76ccb /include/linux/memcontrol.h
parent9a3f21fe5cb9f5654ccad7ba712d868f7de66e39 (diff)
parentac86f547ca1002aec2ef66b9e64d03f45bbbfbb9 (diff)
downloadlinux-5ab0fc155dc0cac3b74584f7bc972569b0f8a57b.tar.xz
Sync mm-stable with mm-hotfixes-stable to pick up dependent patches
Merge branch 'mm-hotfixes-stable' into mm-stable
Diffstat (limited to 'include/linux/memcontrol.h')
-rw-r--r--include/linux/memcontrol.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 26667bf16da5..e605fc885f08 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1688,10 +1688,13 @@ void mem_cgroup_track_foreign_dirty_slowpath(struct folio *folio,
static inline void mem_cgroup_track_foreign_dirty(struct folio *folio,
struct bdi_writeback *wb)
{
+ struct mem_cgroup *memcg;
+
if (mem_cgroup_disabled())
return;
- if (unlikely(&folio_memcg(folio)->css != wb->memcg_css))
+ memcg = folio_memcg(folio);
+ if (unlikely(memcg && &memcg->css != wb->memcg_css))
mem_cgroup_track_foreign_dirty_slowpath(folio, wb);
}