Commit 2e9996fc authored May 13, 2016 by Heiko Carstens Committed by Martin Schwidefsky Jun 13, 2016

s390/vmem: align segment and region tables to 16k



Usually segment and region tables are 16k aligned due to the way the
buddy allocator works.  This is not true for the vmem code which only
asks for a 4k alignment. In order to be consistent enforce a 16k
alignment here as well.

This alignment will be assumed and therefore is required by the
pageattr code.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 4ccccc52

arch/s390/mm/vmem.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -29,9 +29,11 @@ static LIST_HEAD(mem_segs);

		static void __ref *vmem_alloc_pages(unsigned int order)
		{
		unsigned long size = PAGE_SIZE << order;

		if (slab_is_available())
		return (void *)__get_free_pages(GFP_KERNEL, order);
		return alloc_bootmem_pages((1 << order) * PAGE_SIZE);
		return alloc_bootmem_align(size, size);
		}

		static inline pud_t *vmem_pud_alloc(void)