Messages in this thread | | | Date | Mon, 22 Nov 2004 14:22:30 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: deferred rss update instead of sloppy rss |
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On Mon, 22 Nov 2004, Christoph Lameter wrote: > > The problem is then that the proc filesystem must do an extensive scan > over all threads to find users of a certain mm_struct.
The alternative is to just add a simple list into the task_struct and the head of it into mm_struct. Then, at fork, you just finish the fork() with
list_add(p->mm_list, p->mm->thread_list);
and do the proper list_del() in exit_mm() or wherever.
You'll still loop in /proc, but you'll do the minimal loop necessary.
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