Messages in this thread | | | From | "Eric W. Biederman" <> | Date | Wed, 11 May 2022 12:41:44 -0500 | Subject | Re: [PATCH 1/7] kthread: Don't allocate kthread_struct for init and umh |
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"Eric W. Biederman" <ebiederm@xmission.com> writes:
> Thomas Gleixner <tglx@linutronix.de> writes: > >> I'm worried that there are more of these issues lurking. Haven't looked >> yet. > > I looked earlier and I missed this one. I am going to look again today, > along with applying the obvious fix to task_tick_numa.
So I have just looked again and I don't see anything. There are a couple of subtle issues on x86. Especially with saving floating point but as I read the code copy_thread initializes things properly so that code that doesn't touch floating point registers doesn't need to do anything.
The important thing for lurking issues is that even if I missed something practically all of the uses of PF_KTHREAD are on x86 or generic code so they should be flushed out quickly.
Eric
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