Hi Mike,
On Sun, 15 Nov 2020 11:01:05 +0200 Mike Rapoport <rppt@xxxxxxxxxx> wrote:
>
> My preference would be to put the entire function body in '#ifdef
> CONFIG_MEMCG' here.
OK, so today I used this:
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon, 16 Nov 2020 16:55:10 +1100
Subject: [PATCH] secretmem-add-memcg-accounting-fix2
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
mm/secretmem.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/secretmem.c b/mm/secretmem.c
index 5ed6b2070136..c7a37b2d01ed 100644
--- a/mm/secretmem.c
+++ b/mm/secretmem.c
@@ -59,6 +59,7 @@ bool secretmem_active(void)
static int secretmem_memcg_charge(struct page *page, gfp_t gfp, int order)
{
+#ifdef CONFIG_MEMCG
unsigned long nr_pages = (1 << order);
int i, err;
@@ -72,11 +73,13 @@ static int secretmem_memcg_charge(struct page *page, gfp_t gfp, int order)
p->memcg_data = page->memcg_data;
}
+#endif
return 0;
}
static void secretmem_memcg_uncharge(struct page *page, int order)
{
+#ifdef CONFIG_MEMCG
unsigned long nr_pages = (1 << order);
int i;
@@ -87,6 +90,7 @@ static void secretmem_memcg_uncharge(struct page *page, int order)
}
memcg_kmem_uncharge_page(page, PMD_PAGE_ORDER);
+#endif
}
static int secretmem_pool_increase(struct secretmem_ctx *ctx, gfp_t gfp)
--
2.29.2
--
Cheers,
Stephen Rothwell
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