# Re: \[PATCH v2 net-next 0/4\] net: consolidate page\_is\_pfmemalloc() usage

- From: Jesse Brandeburg \<hidden\>
- Date: 2021-01-27 21:54:06 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/01/6250151
- Thread: https://ratatoskr.run/netdev/2021/01/6250014/t.md

```text
Alexander Lobakin wrote:

> page_is_pfmemalloc() is used mostly by networking drivers to test
> if a page can be considered for reusing/recycling.
> It doesn't write anything to the struct page itself, so its sole
> argument can be constified, as well as the first argument of
> skb_propagate_pfmemalloc().
> In Page Pool core code, it can be simply inlined instead.
> Most of the callers from NIC drivers were just doppelgangers of
> the same condition tests. Derive them into a new common function
> do deduplicate the code.

This is a useful cleanup! Thanks.

For the series:
Reviewed-by: Jesse Brandeburg <redacted>
```