Subject: [PATCH v2 2/3] powerpc/mm/book(e)(3s)/32: Add page table accounting

From: Balbir Singh <[email-masked]>
Date: Mon, 1 May 2017 16:34:37 +1000

Add support in pte_alloc_one() and pgd_alloc() by
passing __GFP_ACCOUNT in the flags

Signed-off-by: Balbir Singh <[email-masked]>
---
 arch/powerpc/include/asm/nohash/32/pgalloc.h | 3 ++-
 arch/powerpc/mm/pgtable_32.c                 | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index 6331392..1900d9c 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -31,7 +31,8 @@ extern struct kmem_cache *pgtable_cache[];
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
+	return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+			pgtable_gfp_flags(GFP_KERNEL));
 }
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index a65c0b4..dc1e0c2 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -60,7 +60,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	struct page *ptepage;
 
-	gfp_t flags = GFP_KERNEL | __GFP_ZERO;
+	gfp_t flags = GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT;
 
 	ptepage = alloc_pages(flags, 0);
 	if (!ptepage)
-- 
2.9.3