Messages in this thread | | | Date | Thu, 19 Nov 2020 13:18:01 +0100 | From | Frederic Weisbecker <> | Subject | Re: [patch 12/19] softirq: Add RT specific softirq accounting |
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On Fri, Nov 13, 2020 at 03:02:19PM +0100, Thomas Gleixner wrote: > RT requires the softirq to be preemptible and uses a per CPU local lock to > protect BH disabled sections and softirq processing. Therefore RT cannot > use the preempt counter to keep track of BH disabled/serving. > > Add a RT only counter to task struct and adjust the relevant macros in > preempt.h.
You may want to describe a bit the reason for this per task counter. It's not intuitive at this stage.
Thanks.
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