函数逻辑报告 |
Source Code:kernel\locking\rwsem.c |
Create Date:2022-07-27 10:48:44 |
| 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：handle waking up a waiter on the semaphore* - up_read/up_write has decremented the active part of count if we come here
函数原型：static struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem, long count)
返回类型：struct rw_semaphore
参数：
| 类型 | 参数 | 名称 |
|---|---|---|
| struct rw_semaphore * | sem | |
| long | count |
| 1306 | raw_spin_lock_irqsave( & wait_lock, flags) |
| 1308 | 如果非链表为空则handle the lock release when processes blocked on it that can now run* - if we come here from up_xxxx(), then the RWSEM_FLAG_WAITERS bit must* have been set |
| 1311 | raw_spin_unlock_irqrestore( & wait_lock, flags) |
| 1314 | 返回:sem |
| 名称 | 描述 |
|---|---|
| __up_read | lock after reading |
| __up_write | lock after writing |
| 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 |