提交 eaf0ba5e 编写于 作者: L Linus Torvalds
...@@ -244,7 +244,7 @@ static inline int tracehook_prepare_clone(unsigned clone_flags) ...@@ -244,7 +244,7 @@ static inline int tracehook_prepare_clone(unsigned clone_flags)
* tracehook_finish_clone - new child created and being attached * tracehook_finish_clone - new child created and being attached
* @child: new child task * @child: new child task
* @clone_flags: %CLONE_* flags from clone/fork/vfork system call * @clone_flags: %CLONE_* flags from clone/fork/vfork system call
* @trace: return value from tracehook_clone_prepare() * @trace: return value from tracehook_prepare_clone()
* *
* This is called immediately after adding @child to its parent's children list. * This is called immediately after adding @child to its parent's children list.
* The @trace value is that returned by tracehook_prepare_clone(). * The @trace value is that returned by tracehook_prepare_clone().
...@@ -259,19 +259,20 @@ static inline void tracehook_finish_clone(struct task_struct *child, ...@@ -259,19 +259,20 @@ static inline void tracehook_finish_clone(struct task_struct *child,
/** /**
* tracehook_report_clone - in parent, new child is about to start running * tracehook_report_clone - in parent, new child is about to start running
* @trace: return value from tracehook_clone_prepare() * @trace: return value from tracehook_prepare_clone()
* @regs: parent's user register state * @regs: parent's user register state
* @clone_flags: flags from parent's system call * @clone_flags: flags from parent's system call
* @pid: new child's PID in the parent's namespace * @pid: new child's PID in the parent's namespace
* @child: new child task * @child: new child task
* *
* Called after a child is set up, but before it has been started running. * Called after a child is set up, but before it has been started
* The @trace value is that returned by tracehook_clone_prepare(). * running. @trace is the value returned by tracehook_prepare_clone().
* This is not a good place to block, because the child has not started yet. * This is not a good place to block, because the child has not started
* Suspend the child here if desired, and block in tracehook_clone_complete(). * yet. Suspend the child here if desired, and then block in
* This must prevent the child from self-reaping if tracehook_clone_complete() * tracehook_report_clone_complete(). This must prevent the child from
* uses the @child pointer; otherwise it might have died and been released by * self-reaping if tracehook_report_clone_complete() uses the @child
* the time tracehook_report_clone_complete() is called. * pointer; otherwise it might have died and been released by the time
* tracehook_report_report_clone_complete() is called.
* *
* Called with no locks held, but the child cannot run until this returns. * Called with no locks held, but the child cannot run until this returns.
*/ */
...@@ -290,7 +291,7 @@ static inline void tracehook_report_clone(int trace, struct pt_regs *regs, ...@@ -290,7 +291,7 @@ static inline void tracehook_report_clone(int trace, struct pt_regs *regs,
/** /**
* tracehook_report_clone_complete - new child is running * tracehook_report_clone_complete - new child is running
* @trace: return value from tracehook_clone_prepare() * @trace: return value from tracehook_prepare_clone()
* @regs: parent's user register state * @regs: parent's user register state
* @clone_flags: flags from parent's system call * @clone_flags: flags from parent's system call
* @pid: new child's PID in the parent's namespace * @pid: new child's PID in the parent's namespace
...@@ -347,7 +348,7 @@ static inline void tracehook_prepare_release_task(struct task_struct *task) ...@@ -347,7 +348,7 @@ static inline void tracehook_prepare_release_task(struct task_struct *task)
} }
/** /**
* tracehook_finish_release_task - task is being reaped, clean up tracing * tracehook_finish_release_task - final tracing clean-up
* @task: task in %EXIT_DEAD state * @task: task in %EXIT_DEAD state
* *
* This is called in release_task() when @task is being in the middle of * This is called in release_task() when @task is being in the middle of
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