Is it always necessary to hold task_lock when accessing task struct

[DBQ]

Hi, I have a question. In the kernel, is it always necessary to hold task_lock when accessing task_struct of a process?

Thank You!

[StephenF]

Looks like a question for the Linux kernel mailing list.

[DBQ]

I did try posting this on kerneltrap.com, but no matter what I post, its always flagged as spam.