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Update some coments

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This commit is contained in:
Gregory Nutt 2016-12-26 16:12:27 -06:00
parent 02146758ef
commit e0f3f4ae19
1 changed files with 7 additions and 1 deletions
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8
sched/sched/sched_unlock.c
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@ -125,7 +125,13 @@ int sched_unlock(void)
* in a critical section, i.e., g_cpu_irqlock is locked , or (2) * in a critical section, i.e., g_cpu_irqlock is locked , or (2)
* other CPUs still have pre-emption disabled, i.e., * other CPUs still have pre-emption disabled, i.e.,
* g_cpu_schedlock is locked. In those cases, the release of the * g_cpu_schedlock is locked. In those cases, the release of the
* pending tasks must be deferred until those conditions are met.ing * pending tasks must be deferred until those conditions are met.
*
* REVISIT: This seems incomplete. Apparently there is some
* condition that we must prevent releasing the pending tasks
* when in a critical section. This logic does that, but there
* no corresponding logic to prohibit a new task from being
* started on the g_assignedtasks list. Something is amiss.
*/ */
if (!spin_islocked(&g_cpu_schedlock) && if (!spin_islocked(&g_cpu_schedlock) &&