函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\matrix.c Create Date:2022-07-27 11:17:16
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Find the best CPU which has the lowest vector allocation count

函数原型：static unsigned int matrix_find_best_cpu(struct irq_matrix *m, const struct cpumask *msk)

返回类型：unsigned int

参数：

类型参数名称
struct irq_matrix *m
const struct cpumask *msk
132  maxavl等于0
135  best_cpu等于UINT_MAX
138  cm等于per_cpu_ptr(maps, cpu)
140  如果非online或available小于等于maxavl则继续下一循环
143  best_cpu等于cpu
144  maxavl等于available
146  返回:best_cpu
调用者
名称描述
irq_matrix_allocq_matrix_alloc - Allocate a regular interrupt in a CPU map*@m: Matrix pointer*@msk: Which CPUs to search in*@reserved: Allocate previously reserved interrupts*@mapped_cpu: Pointer to store the CPU for which the irq was allocated