Re: [PATCH RESEND v2 07/13] SUNRPC: let procfs copy in writes

[Chuck Lever]

On Wed, Nov 4, 2026, at 2:59 PM, Christian Brauner wrote:
> Implement ->proc_write_buf() for the procfs channel, flush and
> use-gss-proxy files so procfs copies in what is written before it pins
> the entry. The channel file parses the downcall from that copy and the
> flush files share the parsing with rpc_pipefs in do_write_flush(). The
> rpc_pipefs files keep copying in themselves.
>
> CACHE_DOWNCALL_MAX and CACHE_FLUSH_MAX name the limits both sides
> enforce, procfs through ->proc_write_size. The procfs files are removed
> when the network namespace goes away and that no longer waits for a
> writer that faults on its buffer.
>
> Signed-off-by: Christian Brauner (Amutable) <brau...@kernel.org>

Acked-by: Chuck Lever <c...@kernel.org>


-- 
Chuck Lever (Come to NFS bake-a-thon! https://nfsv4bat.org)