On 14/02/2024 16:28, Zi Yan wrote:
> On 14 Feb 2024, at 11:22, Ryan Roberts wrote:
>
>> On 14/02/2024 16:11, Zi Yan wrote:
>>> On 14 Feb 2024, at 5:38, Ryan Roberts wrote:
>>>
On 13/02/2024 21:55, Zi Yan wrote:
> From: Zi Yan
>
> To split a THP to any lower order (except
On 14 Feb 2024, at 11:22, Ryan Roberts wrote:
> On 14/02/2024 16:11, Zi Yan wrote:
>> On 14 Feb 2024, at 5:38, Ryan Roberts wrote:
>>
>>> On 13/02/2024 21:55, Zi Yan wrote:
From: Zi Yan
To split a THP to any lower order (except order-1) pages, we need to
reform THPs on
On 14/02/2024 16:11, Zi Yan wrote:
> On 14 Feb 2024, at 5:38, Ryan Roberts wrote:
>
>> On 13/02/2024 21:55, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> To split a THP to any lower order (except order-1) pages, we need to
>>> reform THPs on subpages at given order and add page refcount based on the
On 14 Feb 2024, at 5:38, Ryan Roberts wrote:
> On 13/02/2024 21:55, Zi Yan wrote:
>> From: Zi Yan
>>
>> To split a THP to any lower order (except order-1) pages, we need to
>> reform THPs on subpages at given order and add page refcount based on the
>> new page order. Also we need to
On 13/02/2024 21:55, Zi Yan wrote:
> From: Zi Yan
>
> To split a THP to any lower order (except order-1) pages, we need to
> reform THPs on subpages at given order and add page refcount based on the
> new page order. Also we need to reinitialize page_deferred_list after
> removing the page from
On 13 Feb 2024, at 17:19, Zi Yan wrote:
> On 13 Feb 2024, at 17:15, Zi Yan wrote:
>
>> On 13 Feb 2024, at 17:05, Luis Chamberlain wrote:
>>
>>> On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote:
From: Zi Yan
Order-1 folio is not supported because _deferred_list, which is used by
On 13 Feb 2024, at 17:15, Zi Yan wrote:
> On 13 Feb 2024, at 17:05, Luis Chamberlain wrote:
>
>> On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote:
>>> From: Zi Yan
>>> Order-1 folio is not supported because _deferred_list, which is used by
>>> partially mapped folios, is stored in subpage
On 13 Feb 2024, at 17:05, Luis Chamberlain wrote:
> On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote:
>> From: Zi Yan
>> Order-1 folio is not supported because _deferred_list, which is used by
>> partially mapped folios, is stored in subpage 2 and an order-1 folio only
>> has subpage 0 and
On 13.02.24 23:05, Luis Chamberlain wrote:
On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote:
From: Zi Yan
Order-1 folio is not supported because _deferred_list, which is used by
partially mapped folios, is stored in subpage 2 and an order-1 folio only
has subpage 0 and 1.
The LBS
On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote:
> From: Zi Yan
> Order-1 folio is not supported because _deferred_list, which is used by
> partially mapped folios, is stored in subpage 2 and an order-1 folio only
> has subpage 0 and 1.
The LBS patches has the patch from Matthew which
From: Zi Yan
To split a THP to any lower order (except order-1) pages, we need to
reform THPs on subpages at given order and add page refcount based on the
new page order. Also we need to reinitialize page_deferred_list after
removing the page from the split_queue, otherwise a subsequent split
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