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| author | Ingo Molnar <mingo@kernel.org> | 2021-04-20 10:13:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-04-20 10:13:58 +0200 |
| commit | d0d252b8ca7a636640a7dca8606edf7c3bcfe0b8 (patch) | |
| tree | 992b53f3c91669f3597e05997b61fa09db2155df /mm/memcontrol.c | |
| parent | sched/debug: Rename the sched_debug parameter to sched_verbose (diff) | |
| parent | Linux 5.12-rc8 (diff) | |
| download | linux-d0d252b8ca7a636640a7dca8606edf7c3bcfe0b8.tar.xz linux-d0d252b8ca7a636640a7dca8606edf7c3bcfe0b8.zip | |
Merge tag 'v5.12-rc8' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 845eec01ef9d..e064ac0d850a 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3287,24 +3287,21 @@ void obj_cgroup_uncharge(struct obj_cgroup *objcg, size_t size) #endif /* CONFIG_MEMCG_KMEM */ -#ifdef CONFIG_TRANSPARENT_HUGEPAGE /* - * Because page_memcg(head) is not set on compound tails, set it now. + * Because page_memcg(head) is not set on tails, set it now. */ -void mem_cgroup_split_huge_fixup(struct page *head) +void split_page_memcg(struct page *head, unsigned int nr) { struct mem_cgroup *memcg = page_memcg(head); int i; - if (mem_cgroup_disabled()) + if (mem_cgroup_disabled() || !memcg) return; - for (i = 1; i < HPAGE_PMD_NR; i++) { - css_get(&memcg->css); - head[i].memcg_data = (unsigned long)memcg; - } + for (i = 1; i < nr; i++) + head[i].memcg_data = head->memcg_data; + css_get_many(&memcg->css, nr - 1); } -#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #ifdef CONFIG_MEMCG_SWAP /** |