Re: [PATCH v1 2/3] Treewide: Stop corrupting socket's task_frag

Benjamin Coddington
2022-11-21T22:03:29Z

On 21 Nov 2022, at 16:43, Shuah Khan wrote:

> On 11/21/22 14:40, Shuah Khan wrote:
>> On 11/21/22 07:34, Benjamin Coddington wrote:
>>> On 21 Nov 2022, at 8:56, David Howells wrote:
>>>
>>>> Benjamin Coddington <bcodding@redhat.com> wrote:
>>>>
>>>>> Since moving to memalloc_nofs_save/restore, SUNRPC has stopped setting the
>>>>> GFP_NOIO flag on sk_allocation which the networking system uses to decide
>>>>> when it is safe to use current->task_frag.
>>>>
>>>> Um, what's task_frag?
>>>
>>> Its a per-task page_frag used to coalesce small writes for networking -- see:
>>>
>>> 5640f7685831 net: use a per task frag allocator
>>>
>>> Ben
>>>
>>>
>>
>> I am not seeing this in the mainline. Where can find this commit?
>>
>
> Okay. I see this commit in the mainline. However, I don't see the
> sk_use_task_frag in mainline.

sk_use_task_frag is in patch 1/3 in this posting.

https://lore.kernel.org/netdev/26d98c8f-372b-b9c8-c29f-096cddaff149@linuxfoundation.org/T/#m3271959c4cf8dcff1c0c6ba023b2b3821d9e7e99

Ben