Fix a typo in my previous commit
Somehow in the late stages of testing my sched_ule patch, a character was accidentally deleted from the file. Correct this. While I'm committing anyway, the previous commit message requires some clarification: in the normal case of unlending priority after releasing a mutex, the thread that was doing the lending will be woken up and immediately become the highest-priority thread, and in that case no priority inversion would take place. However, if that thread is pinned to a different CPU, then the currently running thread that just had its priority lowered will not be preempted and then priority inversion can occur. Reported by: O. Hartmann (typo), jhb (scheduler clarification) MFC after: 1 month Pointy hat to: rstone
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=313816
@ -1047,7 +1047,7 @@ tdq_notify(struct tdq *tdq, int pri)
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if (tdq->tdq_ipipending)
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return;
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cpu = TD_ID(tdq);
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cpu = TDQ_ID(tdq);
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ctd = pcpu_find(cpu)->pc_curthread;
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if (!sched_shouldpreempt(pri, ctd->td_priority, 1))
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return;
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