On Mon, Sep 07, 2020 at 12:14:59AM +0200, Arnd Bergmann wrote: > I've had a first pass at this now, see > > https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=arm-kill-set_fs > > There are a couple of things in there that ended up uglier than I was > hoping for, and it's completely untested beyond compilation. Is this > roughly what you had in mind? I can do some testing then and post > it to the Arm mailing list. Looks sensible. The OABI hacks a are a little ugly, but so would be every other alternative. Note that you don't need to add a TASK_SIZE_MAX definition to arm if you base it on my series as that provides a default one. I also think with these changes arm/nommu should be able to use UACCESS_MEMCPY.
