irq_matrix_assign_system

函数名称：q_matrix_assign_system - Assign system wide entry in the matrix*@m: Matrix pointer*@bit: Which bit to reserve*@replace: Replace an already allocated vector with a system* vector at the same bit position.* The BUG_ON()s below are on purpose

函数原型：void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit, bool replace)

返回类型：void

参数：

类型	参数	名称
struct irq_matrix *	m
unsigned int	bit
bool	replace

184

cm等于this_cpu_ptr(maps)

186

BUG_ON(bit > matrix_bits)

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BUG_ON(online_maps > 1 || (online_maps && !replace))

189

设置内存位

190

如果replace则

191

BUG_ON(!st_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).)

192

allocated自减

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total_allocated自减

195

如果bit大于等于alloc_start且bit小于alloc_end则systembits_inalloc自加

198

trace_irq_matrix_assign_system(bit, m)

**调用者**
名称	描述
lapic_assign_system_vectors
lapic_assign_legacy_vector

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码