On 01/13/2015 01:43 PM, Cyrill Gorcunov wrote:
> On Tue, Jan 13, 2015 at 09:14:15PM +0200, Kirill A. Shutemov wrote:
>> We're going to account pmd page tables too. Let's rename mm->nr_pgtables
>> to something more generic.
>>
>> Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com>
>> --- a/fs/proc/task_mmu.c
>> +++ b/fs/proc/task_mmu.c
>> @@ -64,7 +64,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
>> data << (PAGE_SHIFT-10),
>> mm->stack_vm << (PAGE_SHIFT-10), text, lib,
>> (PTRS_PER_PTE * sizeof(pte_t) *
>> - atomic_long_read(&mm->nr_ptes)) >> 10,
>> + atomic_long_read(&mm->nr_pgtables)) >> 10,
>
> This implies that (PTRS_PER_PTE * sizeof(pte_t)) = (PTRS_PER_PMD *
> sizeof(pmd_t))
> which might be true for all archs, right?
I wonder if powerpc is OK on this front today. This diagram:
http://linux-mm.org/PageTableStructure
says that they use a 128-byte "pte" table when mapping 16M pages. I
wonder if they bump mm->nr_ptes for these.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
