Re: [PATCH v5 bpf-next 06/10] lib/buildid: implement sleepable build_id_parse() API

Shakeel Butt
2024-08-13T17:26:29Z

On Mon, Aug 12, 2024 at 05:29:28PM GMT, Andrii Nakryiko wrote:
> Extend freader with a flag specifying whether it's OK to cause page
> fault to fetch file data that is not already physically present in
> memory. With this, it's now easy to wait for data if the caller is
> running in sleepable (faultable) context.
>
> We utilize read_cache_folio() to bring the desired folio into page
> cache, after which the rest of the logic works just the same at folio level.
>
> Suggested-by: Omar Sandoval <osandov@fb.com>
> Cc: Shakeel Butt <shakeel.butt@linux.dev>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>