Function report |
Source Code:kernel\workqueue.c |
Create Date:2022-07-28 09:27:33 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:wq_update_unbound_numa - update NUMA affinity of a wq for CPU hot[un]plug*@wq: the target workqueue*@cpu: the CPU coming up or going down*@online: whether @cpu is coming up or going down* This function is to be called from %CPU_DOWN_PREPARE, %CPU_ONLINE
Proto:static void wq_update_unbound_numa(struct workqueue_struct *wq, int cpu, bool online)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct workqueue_struct * | wq | |
int | cpu | |
bool | online |
4077 | node = cpu_to_node(cpu) |
4083 | lockdep_assert_held( & wq_pool_mutex) |
4095 | cpumask = @cpumask: allowed CPUs |
4107 | If pumask_equal - *src1p == *src2p*@src1p: the first input*@src2p: the second input Then Return |
4109 | Else |
4110 | Go to use_dfl_pwq |
4115 | If Not pwq Then |
4116 | pr_warn("workqueue: allocation failed while updating NUMA affinity of \"%s\"\n", I: workqueue name ) |
4118 | Go to use_dfl_pwq |
4122 | mutex_lock( & protects this wq ) |
4124 | Go to out_unlock |
4126 | use_dfl_pwq : |
4127 | mutex_lock( & protects this wq ) |
4128 | spin_lock_irq( & he pool lock ) |
4130 | spin_unlock_irq( & he pool lock ) |
4132 | out_unlock : |
4133 | mutex_unlock( & protects this wq ) |
Name | Describe |
---|---|
workqueue_init | workqueue_init - bring workqueue subsystem fully online* This is the latter half of two-staged workqueue subsystem initialization* and invoked as soon as kthreads can be created and scheduled |
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