Hi :)

On Wed, Jul 18, 2012 at 2:15 AM, Francesco Scali
[off-list ref] wrote:

What's  this call supposed to do? Inside I can see a call to the
"task_thread_info" macro, but I don't quite understand it:

#define task_thread_info(task) ((struct thread_info *)(task)->stack)

IMHO, it means that (in the following order):
1. get the task_struct ( you probably already know this)
2. get its stack property (you probably already know this too :) )

And that's it. That's the function of  task_thread_info() macro: to
return the stack area of that task. IIRC too, stack area is where
thread_info belongs to.


-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
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