__ww_mutex_check

函数名称：We just acquired @lock under @ww_ctx, if there are later contexts waiting* behind us on the wait-list, check if they need to die, or wound us.* See __ww_mutex_add_waiter() for the list-order construction; basically the

函数原型：static void __sched __ww_mutex_check_waiters(struct mutex *lock, struct ww_acquire_ctx *ww_ctx)

返回类型：void

参数：

类型	参数	名称
struct mutex *	lock
struct ww_acquire_ctx *	ww_ctx

448

lockdep_assert_held( & wait_lock)

451

如果非ww_ctx则继续下一循环

454

如果Wait-Die; wake a younger waiter context (when locks held) such that it can* die.* Among waiters with context, only the first one can have other locks acquired* already (ctx->acquired > 0), because __ww_mutex_add_waiter() and或Wound-Wait; wound a younger @hold_ctx if it holds the lock.* Wound the lock holder if there are waiters with older transactions than* the lock holders. Even if multiple waiters may wound the lock holder,* it's sufficient that only one does.则退出

**调用者**
名称	描述
ww_mutex_set_context_fastpath	After acquiring lock with fastpath, where we do not hold wait_lock, set ctx* and wake up any waiters so they can recheck.
__mutex_lock_common	Lock a mutex (possibly interruptible), slowpath:

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

函数逻辑报告