On 3/12/25 06:05, Yunsheng Lin wrote:
On 2025/3/11 23:11, Matthew Wilcox wrote:
On Tue, Mar 11, 2025 at 08:25:25PM +0800, Yunsheng Lin wrote:
struct page {
unsigned long flags;
unsigned long memdesc;
It seems there may be memory behind the above 'memdesc' with different size
and layout for different subsystem?
Yes.
I am not sure if I understand the case of the same page might be handle in
two subsystems concurrently or a page is allocated in one subsystem and
then passed to be handled in other subsystem, for examlpe:
page_pool owned page is mmap'ed into user space through tcp zero copy,
see tcp_zerocopy_vm_insert_batch(), it seems the same page is handled in
both networking/page_pool and vm subsystem?
It's not that arbitrary. I mean, you could read all the documentation
I've written about this concept, listen to the talks I've given.
You can't point to talk given on the concept - people don't have to go
find your talks to understand the concept. You are expected to answer
the question and explain it to us here in this thread.
But
sure, you're a special fucking snowflake and deserve your own unique
explanation.
Yunsheng Lin, This message is a rude personal attack. This isn't the
way to treat your peers in the community. Apology is warranted.
If you don't like responding to the above question/comment, I would rather
you strip out them like the other question/comment or just ignore it:(
I am not sure how to interpret the comment, but I am sure it is not a kind
one, so CC 'Code of Conduct Committee' in case there is more coming.
Thank you Mathew for letting us know about this.
thanks,
-- Shuah ((on behalf of the CoC committee)
