Re: [PATCH] Revert "Smack: Handle io_uring kernel thread privileges"

On 3/26/21 10:00 AM, Casey Schaufler wrote:

On 3/25/2021 5:42 PM, Jens Axboe wrote:

quoted

This reverts commit 942cb357ae7d9249088e3687ee6a00ed2745a0c7.

The io_uring PF_IO_WORKER threads no longer have PF_KTHREAD set, so no
need to special case them for credential checks.

Could you cite the commit making that change?
I wouldn't want to see this change back-ported to a kernel
that doesn't have that change as well.

This is strictly 5.12+. The change came about from:

commit 3bfe6106693b6b4ba175ad1f929c4660b8f59ca8
Author: Jens Axboe [off-list ref]
Date:   Tue Feb 16 14:15:30 2021 -0700

    io-wq: fork worker threads from original task

So don't backport it.

-- 
Jens Axboe