> On Apr 7, 2025, at 16:59, Christoph Hellwig wrote:
>
> On Mon, Apr 07, 2025 at 02:43:20PM +0800, Muchun Song wrote:
>> By the way, in case you truly struggle to comprehend the fundamental
>> aspects of HVO, I would like to summarize for you the user-visible
>> behaviors in comparison to the
On Mon, Apr 07, 2025 at 02:43:20PM +0800, Muchun Song wrote:
> By the way, in case you truly struggle to comprehend the fundamental
> aspects of HVO, I would like to summarize for you the user-visible
> behaviors in comparison to the situation where HVO is disabled.
>
> HVO StatusTail
在 2025/4/7 15:22, Muchun Song 写道:
On Apr 7, 2025, at 15:09, Huan Yang wrote:
在 2025/4/7 14:43, Muchun Song 写道:
On Apr 7, 2025, at 11:37, Muchun Song wrote:
On Apr 7, 2025, at 11:21, Huan Yang wrote:
在 2025/4/7 10:57, Muchun Song 写道:
On Apr 7, 2025, at 09:59, Huan Yang wrote:
在
> On Apr 7, 2025, at 15:09, Huan Yang wrote:
>
>
> 在 2025/4/7 14:43, Muchun Song 写道:
>>
>>> On Apr 7, 2025, at 11:37, Muchun Song wrote:
>>>
>>>
>>>
On Apr 7, 2025, at 11:21, Huan Yang wrote:
在 2025/4/7 10:57, Muchun Song 写道:
>> On Apr 7, 2025, at 09:59, Huan Y
在 2025/4/7 14:43, Muchun Song 写道:
On Apr 7, 2025, at 11:37, Muchun Song wrote:
On Apr 7, 2025, at 11:21, Huan Yang wrote:
在 2025/4/7 10:57, Muchun Song 写道:
On Apr 7, 2025, at 09:59, Huan Yang wrote:
在 2025/4/4 18:07, Muchun Song 写道:
On Apr 4, 2025, at 17:38, Muchun Song wrote:
> On Apr 7, 2025, at 11:37, Muchun Song wrote:
>
>
>
>> On Apr 7, 2025, at 11:21, Huan Yang wrote:
>>
>>
>> 在 2025/4/7 10:57, Muchun Song 写道:
>>>
On Apr 7, 2025, at 09:59, Huan Yang wrote:
在 2025/4/4 18:07, Muchun Song 写道:
>> On Apr 4, 2025, at 17:38, Muchun So
> On Apr 7, 2025, at 11:21, Huan Yang wrote:
>
>
> 在 2025/4/7 10:57, Muchun Song 写道:
>>
>>> On Apr 7, 2025, at 09:59, Huan Yang wrote:
>>>
>>>
>>> 在 2025/4/4 18:07, Muchun Song 写道:
> On Apr 4, 2025, at 17:38, Muchun Song wrote:
>
>
>
>> On Apr 4, 2025, at 17:01, Ch
在 2025/4/7 10:57, Muchun Song 写道:
On Apr 7, 2025, at 09:59, Huan Yang wrote:
在 2025/4/4 18:07, Muchun Song 写道:
On Apr 4, 2025, at 17:38, Muchun Song wrote:
On Apr 4, 2025, at 17:01, Christoph Hellwig wrote:
After the btrfs compressed bio discussion I think the hugetlb changes that
> On Apr 7, 2025, at 09:59, Huan Yang wrote:
>
>
> 在 2025/4/4 18:07, Muchun Song 写道:
>>
>>> On Apr 4, 2025, at 17:38, Muchun Song wrote:
>>>
>>>
>>>
On Apr 4, 2025, at 17:01, Christoph Hellwig wrote:
After the btrfs compressed bio discussion I think the hugetlb changes t
在 2025/4/4 18:07, Muchun Song 写道:
On Apr 4, 2025, at 17:38, Muchun Song wrote:
On Apr 4, 2025, at 17:01, Christoph Hellwig wrote:
After the btrfs compressed bio discussion I think the hugetlb changes that
skip the tail pages are fundamentally unsafe in the current kernel.
That is beca
> On Apr 4, 2025, at 17:38, Muchun Song wrote:
>
>
>
>> On Apr 4, 2025, at 17:01, Christoph Hellwig wrote:
>>
>> After the btrfs compressed bio discussion I think the hugetlb changes that
>> skip the tail pages are fundamentally unsafe in the current kernel.
>>
>> That is because the bio_
> On Apr 4, 2025, at 17:01, Christoph Hellwig wrote:
>
> After the btrfs compressed bio discussion I think the hugetlb changes that
> skip the tail pages are fundamentally unsafe in the current kernel.
>
> That is because the bio_vec representation assumes tail pages do exist, so
> as soon as
After the btrfs compressed bio discussion I think the hugetlb changes that
skip the tail pages are fundamentally unsafe in the current kernel.
That is because the bio_vec representation assumes tail pages do exist, so
as soon as you are doing direct I/O that generates a bvec starting beyond
the pr
On Thu, Mar 27, 2025 at 05:28:27PM +0800, Huan Yang wrote:
> Bingbu reported an issue in [1] that udmabuf vmap failed and in [2], we
> discussed the scenario of folio vmap due to the misuse of vmap_pfn
> in udmabuf.
>
> We reached the conclusion that vmap_pfn prohibits the use of page-based
> PFNs
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