find_lock_task

函数名称：The process p may have detached its own ->mm while exiting or through* use_mm(), but one or more of its subthreads may still have a valid* pointer. Return p, or any of its subthreads with a valid ->mm, with* task_lock() held.

函数原型：struct task_struct *find_lock_task_mm(struct task_struct *p)

返回类型：struct task_struct

参数：

类型	参数	名称
struct task_struct *	p

136

_read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other

138

for_each_thread(p, t)

139

Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring* subscriptions and synchronises with wait4(). Also used in procfs. Also* pins the final release of task.io_context. Also protects ->cpuset and* ->cgroup.subsys[]. And ->vfork_done.

140

如果此条件成立可能性大(为编译器优化)(mm)则转到:found

142

task_unlock(t)

144

t = NULL

145

found :

146

_read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()

148

返回:t

**调用者**
名称	描述
oom_badness	m_badness - heuristic function to determine which candidate task to kill@p: task struct of which task we should calculate@totalpages: total present RAM allowed for page allocation* The heuristic for determining which task to kill is made to be as simple
dump_task
__oom_kill_process

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