On Fri, Jul 23, 2021 at 12:10:32AM +0000, Al Viro wrote:

On Thu, Jul 22, 2021 at 05:42:55PM -0600, Jens Axboe wrote:

quoted

quoted

So how can we possibly get there with tsk->files == NULL and what does it
have to do with files, anyway?

It's not the clearest, but the files check is just to distinguish between
exec vs normal cancel. For exec, we pass in files == NULL. It's not
related to task->files being NULL or not, we explicitly pass NULL for
exec.

Er...  So turn that argument into bool cancel_all, and pass false on exit and
true on exit?

          ^^^^ exec, that is.  Sorry.