[PATCH 3/9] ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP

[Johannes Berg]

On Tue, 2022-04-26 at 17:52 -0500, Eric W. Biederman wrote:
> User mode linux is the last user of the PT_DTRACE flag.  Using the flag to indicate
> single stepping is a little confusing and worse changing tsk->ptrace without locking
> could potentionally cause problems.
> 
> So use a thread info flag with a better name instead of flag in tsk->ptrace.
> 
> Remove the definition PT_DTRACE as uml is the last user.


Looks fine to me.

Acked-by: Johannes Berg <johannes at sipsolutions.net>

Looking at pending patches, I don't see any conflicts from this. I'm
guessing anyway you'll want/need to take these through some tree all
together.

johannes