On Tue, Jul 16, 2013 at 09:02:53PM +0800, Sam Ben wrote:
> Hi Robin,
> On 07/12/2013 10:03 AM, Robin Holt wrote:
> >Currently, when free_all_bootmem() calls __free_pages_memory(), the
> >number of contiguous pages that __free_pages_memory() passes to the
> >buddy allocator is limited to
On Tue, Jul 16, 2013 at 09:02:53PM +0800, Sam Ben wrote:
Hi Robin,
On 07/12/2013 10:03 AM, Robin Holt wrote:
Currently, when free_all_bootmem() calls __free_pages_memory(), the
number of contiguous pages that __free_pages_memory() passes to the
buddy allocator is limited to BITS_PER_LONG. In
Hi Robin,
On 07/12/2013 10:03 AM, Robin Holt wrote:
Currently, when free_all_bootmem() calls __free_pages_memory(), the
number of contiguous pages that __free_pages_memory() passes to the
buddy allocator is limited to BITS_PER_LONG. In order to be able to
I fail to understand this. Why the
Hi Robin,
On 07/12/2013 10:03 AM, Robin Holt wrote:
Currently, when free_all_bootmem() calls __free_pages_memory(), the
number of contiguous pages that __free_pages_memory() passes to the
buddy allocator is limited to BITS_PER_LONG. In order to be able to
I fail to understand this. Why the
On Fri, Jul 12, 2013 at 12:45 AM, Robin Holt wrote:
> At the very least, I think we could change to:
> static void __init __free_pages_memory(unsigned long start, unsigned long end)
> {
> int order;
>
> while (start < end) {
> order = ffs(start);
>
>
After sleeping on this, why can't we change __free_pages_bootmem
to not take an order, but rather nr_pages? If we did that,
then __free_pages_memory could just calculate nr_pages and call
__free_pages_bootmem one time.
I don't see why any of the callers of __free_pages_bootmem would not
easily
After sleeping on this, why can't we change __free_pages_bootmem
to not take an order, but rather nr_pages? If we did that,
then __free_pages_memory could just calculate nr_pages and call
__free_pages_bootmem one time.
I don't see why any of the callers of __free_pages_bootmem would not
easily
On Fri, Jul 12, 2013 at 12:45 AM, Robin Holt h...@sgi.com wrote:
At the very least, I think we could change to:
static void __init __free_pages_memory(unsigned long start, unsigned long end)
{
int order;
while (start end) {
order = ffs(start);
Currently, when free_all_bootmem() calls __free_pages_memory(), the
number of contiguous pages that __free_pages_memory() passes to the
buddy allocator is limited to BITS_PER_LONG. In order to be able to
free only the first page of a 2MiB chunk, we need that to be increased
to PTRS_PER_PMD.
Currently, when free_all_bootmem() calls __free_pages_memory(), the
number of contiguous pages that __free_pages_memory() passes to the
buddy allocator is limited to BITS_PER_LONG. In order to be able to
free only the first page of a 2MiB chunk, we need that to be increased
to PTRS_PER_PMD.
10 matches
Mail list logo
