On 7/12/19 12:22 PM, Alexander Duyck wrote:
> On Thu, Jul 11, 2019 at 6:13 PM Nitesh Narayan Lal wrote:
>>
>> On 7/11/19 7:20 PM, Alexander Duyck wrote:
>>> On Thu, Jul 11, 2019 at 10:58 AM Nitesh Narayan Lal
>>> wrote:
On 7/10/19 5:56 PM, Alexander Duyck wrote:
> On Wed, Jul 10,
On 15.07.19 11:33, David Hildenbrand wrote:
> On 11.07.19 20:21, Dave Hansen wrote:
>> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>>> +static void bm_set_pfn(struct page *page)
>>> +{
>>> + struct zone *zone = page_zone(page);
>>> + int zone_idx = page_zonenum(page);
>>> + unsigned long
On 11.07.19 20:21, Dave Hansen wrote:
> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>> +static void bm_set_pfn(struct page *page)
>> +{
>> +struct zone *zone = page_zone(page);
>> +int zone_idx = page_zonenum(page);
>> +unsigned long bitnr = 0;
>> +
>> +
On 10.07.19 22:45, Dave Hansen wrote:
> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>> +struct zone_free_area {
>> +unsigned long *bitmap;
>> +unsigned long base_pfn;
>> +unsigned long end_pfn;
>> +atomic_t free_pages;
>> +unsigned long nbits;
>> +} free_area[MAX_NR_ZONES];
On 7/12/19 12:22 PM, Alexander Duyck wrote:
> On Thu, Jul 11, 2019 at 6:13 PM Nitesh Narayan Lal wrote:
>>
>> On 7/11/19 7:20 PM, Alexander Duyck wrote:
>>> On Thu, Jul 11, 2019 at 10:58 AM Nitesh Narayan Lal
>>> wrote:
On 7/10/19 5:56 PM, Alexander Duyck wrote:
> On Wed, Jul 10,
On Thu, Jul 11, 2019 at 6:13 PM Nitesh Narayan Lal wrote:
>
>
> On 7/11/19 7:20 PM, Alexander Duyck wrote:
> > On Thu, Jul 11, 2019 at 10:58 AM Nitesh Narayan Lal
> > wrote:
> >>
> >> On 7/10/19 5:56 PM, Alexander Duyck wrote:
> >>> On Wed, Jul 10, 2019 at 12:52 PM Nitesh Narayan Lal
> >>>
On 7/11/19 7:20 PM, Alexander Duyck wrote:
> On Thu, Jul 11, 2019 at 10:58 AM Nitesh Narayan Lal wrote:
>>
>> On 7/10/19 5:56 PM, Alexander Duyck wrote:
>>> On Wed, Jul 10, 2019 at 12:52 PM Nitesh Narayan Lal
>>> wrote:
This patch introduces the core infrastructure for free page hinting
On Thu, Jul 11, 2019 at 10:58 AM Nitesh Narayan Lal wrote:
>
>
> On 7/10/19 5:56 PM, Alexander Duyck wrote:
> > On Wed, Jul 10, 2019 at 12:52 PM Nitesh Narayan Lal
> > wrote:
> >> This patch introduces the core infrastructure for free page hinting in
> >> virtual environments. It enables the
On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
> +static void bm_set_pfn(struct page *page)
> +{
> + struct zone *zone = page_zone(page);
> + int zone_idx = page_zonenum(page);
> + unsigned long bitnr = 0;
> +
> + lockdep_assert_held(>lock);
> + bitnr = pfn_to_bit(page,
On 7/10/19 5:56 PM, Alexander Duyck wrote:
> On Wed, Jul 10, 2019 at 12:52 PM Nitesh Narayan Lal wrote:
>> This patch introduces the core infrastructure for free page hinting in
>> virtual environments. It enables the kernel to track the free pages which
>> can be reported to its hypervisor so
On 7/11/19 12:45 PM, Dave Hansen wrote:
> On 7/11/19 9:36 AM, Nitesh Narayan Lal wrote:
>> +struct zone_free_area {
>> +unsigned long *bitmap;
>> +unsigned long base_pfn;
>> +unsigned long end_pfn;
>> +atomic_t free_pages;
>> +
On 7/11/19 9:36 AM, Nitesh Narayan Lal wrote:
> +struct zone_free_area {
> + unsigned long *bitmap;
> + unsigned long base_pfn;
> + unsigned long end_pfn;
> + atomic_t free_pages;
> + unsigned long nbits;
> +} free_area[MAX_NR_ZONES];
Why do we need an extra data
On 7/11/19 12:22 PM, Dave Hansen wrote:
> On 7/11/19 8:25 AM, Nitesh Narayan Lal wrote:
>> On 7/10/19 4:45 PM, Dave Hansen wrote:
>>> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
+struct zone_free_area {
+ unsigned long *bitmap;
+ unsigned long base_pfn;
+ unsigned long
On 7/11/19 8:25 AM, Nitesh Narayan Lal wrote:
> On 7/10/19 4:45 PM, Dave Hansen wrote:
>> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>>> +struct zone_free_area {
>>> + unsigned long *bitmap;
>>> + unsigned long base_pfn;
>>> + unsigned long end_pfn;
>>> + atomic_t free_pages;
>>> +
On 7/11/19 11:25 AM, Nitesh Narayan Lal wrote:
> On 7/10/19 4:45 PM, Dave Hansen wrote:
>> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>>> +struct zone_free_area {
>>> + unsigned long *bitmap;
>>> + unsigned long base_pfn;
>>> + unsigned long end_pfn;
>>> + atomic_t free_pages;
>>> +
On 7/10/19 4:45 PM, Dave Hansen wrote:
> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>> +struct zone_free_area {
>> +unsigned long *bitmap;
>> +unsigned long base_pfn;
>> +unsigned long end_pfn;
>> +atomic_t free_pages;
>> +unsigned long nbits;
>> +}
On 7/10/19 4:45 PM, Dave Hansen wrote:
> On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
>> +struct zone_free_area {
>> +unsigned long *bitmap;
>> +unsigned long base_pfn;
>> +unsigned long end_pfn;
>> +atomic_t free_pages;
>> +unsigned long nbits;
>> +}
On Wed, Jul 10, 2019 at 12:52 PM Nitesh Narayan Lal wrote:
>
> This patch introduces the core infrastructure for free page hinting in
> virtual environments. It enables the kernel to track the free pages which
> can be reported to its hypervisor so that the hypervisor could
> free and reuse that
On 7/10/19 12:51 PM, Nitesh Narayan Lal wrote:
> +struct zone_free_area {
> + unsigned long *bitmap;
> + unsigned long base_pfn;
> + unsigned long end_pfn;
> + atomic_t free_pages;
> + unsigned long nbits;
> +} free_area[MAX_NR_ZONES];
Why do we need an extra data structure.
This patch introduces the core infrastructure for free page hinting in
virtual environments. It enables the kernel to track the free pages which
can be reported to its hypervisor so that the hypervisor could
free and reuse that memory as per its requirement.
While the pages are getting processed
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