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s390/mm: use CRST_ALLOC_ORDER instead of number 

Use CRST_ALLOC_ORDER to make it more obvious what the order means,
and also to be consistent with other code, e.g. the vmemmap code.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2022-02-07 14:02:18 +01:00 committed by Vasily Gorbik
parent 303fd988ed
commit f413f685c6
1 changed files with 4 additions and 4 deletions
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8
arch/s390/mm/pgalloc.c
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@ -53,17 +53,17 @@ __initcall(page_table_register_sysctl);
unsigned long *crst_table_alloc(struct mm_struct *mm)
{
struct page *page = alloc_pages(GFP_KERNEL, 2);
struct page *page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return NULL;
arch_set_page_dat(page, 2);
arch_set_page_dat(page, CRST_ALLOC_ORDER);
return (unsigned long *) page_to_virt(page);
}
void crst_table_free(struct mm_struct *mm, unsigned long *table)
{
free_pages((unsigned long) table, 2);
free_pages((unsigned long)table, CRST_ALLOC_ORDER);
}
static void __crst_table_upgrade(void *arg)
@ -403,7 +403,7 @@ void __tlb_remove_table(void *_table)
switch (half) {
case 0x00U: /* pmd, pud, or p4d */
free_pages((unsigned long) table, 2);
free_pages((unsigned long)table, CRST_ALLOC_ORDER);
return;
case 0x01U: /* lower 2K of a 4K page table */
case 0x02U: /* higher 2K of a 4K page table */