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s390/mm: Use __GFP_ACCOUNT for user page table allocations

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Add missing kmemcg accounting of user page table allocations.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Heiko Carstens
2025-09-24 16:24:17 +02:00
committed by Alexander Gordeev
parent e11727b2b0
commit 5671ce2a1f
1 changed files with 10 additions and 3 deletions
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arch/s390/mm/pgalloc.c
+10 -3
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@@ -16,9 +16,13 @@
unsigned long *crst_table_alloc(struct mm_struct *mm)
{
struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, CRST_ALLOC_ORDER);
gfp_t gfp = GFP_KERNEL_ACCOUNT;
struct ptdesc *ptdesc;
unsigned long *table;
if (mm == &init_mm)
gfp &= ~__GFP_ACCOUNT;
ptdesc = pagetable_alloc(gfp, CRST_ALLOC_ORDER);
if (!ptdesc)
return NULL;
table = ptdesc_to_virt(ptdesc);
@@ -117,7 +121,7 @@ struct ptdesc *page_table_alloc_pgste(struct mm_struct *mm)
struct ptdesc *ptdesc;
u64 *table;
ptdesc = pagetable_alloc(GFP_KERNEL, 0);
ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, 0);
if (ptdesc) {
table = (u64 *)ptdesc_to_virt(ptdesc);
__arch_set_page_dat(table, 1);
@@ -136,10 +140,13 @@ void page_table_free_pgste(struct ptdesc *ptdesc)
unsigned long *page_table_alloc(struct mm_struct *mm)
{
gfp_t gfp = GFP_KERNEL_ACCOUNT;
struct ptdesc *ptdesc;
unsigned long *table;
ptdesc = pagetable_alloc(GFP_KERNEL, 0);
if (mm == &init_mm)
gfp &= ~__GFP_ACCOUNT;
ptdesc = pagetable_alloc(gfp, 0);
if (!ptdesc)
return NULL;
if (!pagetable_pte_ctor(mm, ptdesc)) {