Re: [PATCH v6 00/12] extend task comm from 16 to 24

[Alexei Starovoitov]

On Mon, Oct 25, 2021 at 1:33 AM Yafang Shao <laoar.shao@xxxxxxxxx> wrote:
>
> There're many truncated kthreads in the kernel, which may make trouble
> for the user, for example, the user can't get detailed device
> information from the task comm.
>
> This patchset tries to improve this problem fundamentally by extending
> the task comm size from 16 to 24. In order to do that, we have to do
> some cleanups first.

It looks like a churn that doesn't really address the problem.
If we were to allow long names then make it into a pointer and use 16 byte
as an optimized storage for short names. Any longer name would be a pointer.
In other words make it similar to dentry->d_iname.