Messages in this thread | | | Date | Tue, 22 Mar 2022 16:22:16 +0100 | From | Takashi Iwai <> | Subject | Re: An announcement for kernel-global workqueue users. |
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On Mon, 21 Mar 2022 02:24:23 +0100, Tetsuo Handa wrote: > > Hello. > > The Linux kernel provides kernel-global WQs (namely, system_wq, system_highpri_wq, > system_long_wq, system_unbound_wq, system_freezable_wq, system_power_efficient_wq > and system_freezable_power_efficient_wq). But since attempt to flush kernel-global > WQs has possibility of deadlock, Tejun Heo thinks that we should stop calling > flush_scheduled_work() and flush_workqueue(system_*). Such callers as of Linux 5.17 > are listed below. > > ---------- > $ git grep -nF 'flush_scheduled_work()' (snip) > sound/soc/intel/atom/sst/sst.c:363: flush_scheduled_work();
At least this one looks superfluous, the call can be simply dropped. I'm going to submit a fix patch.
thanks,
Takashi
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