函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq-sysfs.c Create Date:2022-07-27 18:49:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：blk_mq_hw_sysfs_cpus_show

函数原型：static ssize_t blk_mq_hw_sysfs_cpus_show(struct blk_mq_hw_ctx *hctx, char *page)

返回类型：ssize_t

参数：

类型参数名称
struct blk_mq_hw_ctx *hctx
char *page
161  size等于PAGE_SIZE减1
162  first等于1
163  ret等于0, pos等于0
166  如果first则ret等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
168  否则ret等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
171  如果ret大于等于size减pos则退出
174  first等于0
175  pos加等于ret
178  ret等于snprintf - Format a string and place it in a buffer*@buf: The buffer to place the result into*@size: The size of the buffer, including the trailing null space*@fmt: The format string to use*@
179  返回:pos加ret