Re: [PATCH RFC 09/11] SUNRPC: drop the ioctl of the procfs channel files

[Chuck Lever]

On Mon, Nov 2, 2026, at 10:07 AM, Christian Brauner wrote:
> do_vfs_ioctl() answers FIONREAD for regular files with i_size - f_pos
> before it gets to the file's ->unlocked_ioctl(). The channel files are
> regular files, so cache_ioctl_procfs() has never seen FIONREAD and only
> ever failed other commands with -EINVAL. Drop it. Other commands fail
> with -ENOTTY now.
>
> The rpc_pipefs channel files are regular files as well.
>
> 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)