函数逻辑报告 |
Source Code:fs\aio.c |
Create Date:2022-07-29 10:53:36 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
首页 | 函数Tree |
注解内核,赢得工具 | 下载SCCT | English |
函数名称:sys_io_cancel:* Attempts to cancel an iocb previously passed to io_submit. If* the operation is successfully cancelled, the resulting event is* copied into the memory pointed to by result without being placed* into the completion queue and 0 is returned
函数原型:SYSCALL_DEFINE3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result)
返回类型:
参数:无
2010 | 如果此条件成立可能性小(为编译器优化)(Careful: we have to cast the result to the type of the pointer* for sign reasons(key, & he kernel sets aio_key to the req # ))则返回:负EFAULT |
2012 | 如果此条件成立可能性小(为编译器优化)(key != KIOCB_KEY)则返回:负EINVAL |
2015 | ctx等于lookup_ioctx(ctx_id) |
2016 | 如果此条件成立可能性小(为编译器优化)(!ctx)则返回:负EINVAL |
2019 | spin_lock_irq( & ctx_lock) |
2028 | spin_unlock_irq( & ctx_lock) |
2030 | 如果非ret则 |
2036 | ret等于负EINPROGRESS |
2039 | percpu计数引用减 |
2041 | 返回:ret |
源代码转换工具 开放的插件接口 | X |
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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 |