18 Aug
2020
18 Aug
'20
7 a.m.
On Mon, Aug 17, 2020 at 12:12:12PM -0700, Cong Wang wrote:
So netdev people will have to understand and support PageSlab() or page_count()?
Yes. As they came up with that contrived rule what is acceptable for sendpage. No one else really knows and other subsystems like the block layer are perfectly fine with it.
If it is unusual even for mm people, how could netdev people suppose to understand this unusual mm bug? At least not any better.
It is not a mm bug, it is a networking quirk.