* How to find the child processes? [not found] <6089e33a-29ad-4df9-aac8-006e9b42fbfa@mail5.gatech.edu> @ 2012-02-11 3:45 ` Surenkumar Nihalani 2012-02-11 5:12 ` Dave Hylands 0 siblings, 1 reply; 2+ messages in thread From: Surenkumar Nihalani @ 2012-02-11 3:45 UTC (permalink / raw) To: kernelnewbies Hi guys, I need help, again. I am writing a kernel module. I have the pid and tid from the current structure. How do I figure our the number of threads in the given process id? If possible, how do I get the individual tids within the pid? Thanks, Suren Nihalani. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120210/c4ef9e0b/attachment.html ^ permalink raw reply [flat|nested] 2+ messages in thread
* How to find the child processes? 2012-02-11 3:45 ` How to find the child processes? Surenkumar Nihalani @ 2012-02-11 5:12 ` Dave Hylands 0 siblings, 0 replies; 2+ messages in thread From: Dave Hylands @ 2012-02-11 5:12 UTC (permalink / raw) To: kernelnewbies Hi Suren, On Fri, Feb 10, 2012 at 7:45 PM, Surenkumar Nihalani <suren@gatech.edu> wrote: > Hi guys, > > I need help, again. I am writing a kernel module. I have the pid and tid > from the current structure. How do I figure our the number of threads in the > given process id? > If possible, how do I get the individual tids within the pid? So I took a look at how /proc/TTT/task was implemented, and basically it uses next_thread from sched.h, which follows the thread_group structure stored inside task_struct. You need to acquire the appropriate locks and do checks to make sure that the thread hasn't died on you, but that's the jist of it. -- Dave Hylands Shuswap, BC, Canada http://www.davehylands.com ^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-02-11 3:45 ` How to find the child processes? Surenkumar Nihalani
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