Re: [PATCH RFC 0/4] fs/pipe: unify the page pools into a single per-pipe pool

[Christian Brauner]

On 2026-06-26 03:26 -0700, Breno Leitao wrote:
> TL;DR: This simplifies the pipe code, unify the page pools, reduce the
> code by 11 lines, and improves the microbenchmark by up to 23% — so it's
> probably wrong (!?).
> 
> Summary:
> =======
> 
> I've spent some time converging tmp_page[] and the on-stack
> anon_pipe_prealloc pool of pages into a single per-pipe pool, as
> discussed previously in a few places, most recently at:
> 
> https://lore.kernel.org/all/ajLA_zxsYyKISkwp@xxxxxxxxxx/

I think this makes sense. Sashiko has some comments on missing trim for
readers you might want to consider.