Messages in this thread | | | Date | Thu, 24 Oct 2019 01:20:50 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [patch V2 14/17] entry: Provide generic exit to usermode functionality |
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On Wed, 23 Oct 2019, Andy Lutomirski wrote:
> On Wed, Oct 23, 2019 at 5:31 AM Thomas Gleixner <tglx@linutronix.de> wrote: > > > > From: Thomas Gleixner <tglx@linutronix.de> > > > > Provide a generic facility to handle the exit to usermode work. That's > > aimed to replace the pointlessly different copies in each architecture. > > > > /** > > + * local_irq_enable_exit_to_user - Exit to user variant of local_irq_enable() > > + * @ti_work: Cached TIF flags gathered with interrupts disabled > > + * > > + * Defaults to local_irq_enable(). Can be supplied by architecture specific > > + * code. > > What did you have in mind here?
Look at the previous version which had the ARM64 conversion. ARM64 does magic different stuff vs. local_irq_enable() in the exit path. It's not using the regular one. I'm happy to ditch that :)
Thanks,
tglx
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