Messages in this thread | | | Date | Wed, 19 Apr 2017 17:08:35 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v6 05/15] lockdep: Implement crossrelease feature |
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On Tue, Mar 14, 2017 at 05:18:52PM +0900, Byungchul Park wrote: > +/* > + * Only access local task's data, so irq disable is only required. > + */ > +static int same_context_xhlock(struct hist_lock *xhlock) > +{ > + struct task_struct *curr = current; > + > + /* In the case of hardirq context */ > + if (curr->hardirq_context) { > + if (xhlock->hlock.irq_context & 2) /* 2: bitmask for hardirq */ > + return 1; > + /* In the case of softriq context */ > + } else if (curr->softirq_context) { > + if (xhlock->hlock.irq_context & 1) /* 1: bitmask for softirq */ > + return 1; > + /* In the case of process context */ > + } else { > + if (xhlock->work_id == curr->work_id) > + return 1; > + } > + return 0; > +}
static bool same_context_xhlock(struct hist_lock *xhlock) { return xhlock->hlock.irq_context == task_irq_context(current) && xhlock->work_id == current->work_id; }
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