Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [patch 14/19] softirq: Make softirq control and processing RT aware | Date | Mon, 23 Nov 2020 20:27:33 +0100 |
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On Mon, Nov 23 2020 at 14:44, Frederic Weisbecker wrote: > On Fri, Nov 13, 2020 at 03:02:21PM +0100, Thomas Gleixner wrote: >> + /* >> + * Adjust softirq count to SOFTIRQ_OFFSET which makes >> + * in_serving_softirq() become true. >> + */ >> + cnt = SOFTIRQ_OFFSET; >> + __local_bh_enable(cnt, false); > > But then you enter __do_softirq() with softirq_count() == SOFTIRQ_OFFSET. > __do_softirq() calls softirq_handle_begin() which then sets it back to > SOFTIRQ_DISABLE_OFFSET...
The RT variant of it added in this very same patch > +static inline void softirq_handle_begin(void) { } > +static inline void softirq_handle_end(void) { }
Thanks,
tglx
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