Function report |
Source Code:kernel\rcu\srcutree.c |
Create Date:2022-07-28 10:19:00 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Core SRCU state machine. Push state bits of ->srcu_gp_seq* to SRCU_STATE_SCAN2, and invoke srcu_gp_end() when scan has* completed in that state.
Proto:static void srcu_advance_state(struct srcu_struct *ssp)
Type:void
Parameter:
Type | Parameter | Name |
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struct srcu_struct * | ssp |
1095 | mutex_lock( & srcu_gp_mutex) |
1107 | idx = Return the state portion of a sequence number previously returned* by rcu_seq_snap() or rcu_seq_current(). |
1108 | If idx == SRCU_STATE_IDLE Then |
1109 | spin_lock_irq_rcu_node(ssp) |
1110 | If ULONG_CMP_GE(srcu_gp_seq, srcu_gp_seq_needed) Then |
1111 | WARN_ON_ONCE(Return the state portion of a sequence number previously returned* by rcu_seq_snap() or rcu_seq_current().) |
1112 | spin_unlock_irq_rcu_node(ssp) |
1114 | Return |
1116 | idx = Return the state portion of a sequence number previously returned* by rcu_seq_snap() or rcu_seq_current(). |
1117 | If idx == SRCU_STATE_IDLE Then Start an SRCU grace period. |
1119 | spin_unlock_irq_rcu_node(ssp) |
1120 | If idx != SRCU_STATE_IDLE Then |
1127 | idx = 1 ^ Current reader array element. & 1 |
1142 | idx = 1 ^ Current reader array element. & 1 |
Name | Describe |
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process_srcu |
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