Messages in this thread | | | Date | Thu, 7 Jun 2007 09:07:44 +1000 | From | Paul Mackerras <> | Subject | Re: [BUG] ptraced process waiting on syscall may return kernel internal errnos |
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Linus Torvalds writes:
> So I think that the *right* place to clear TIF_SIGPENDING is actually in > "get_signal_to_deliver()", because that function is called _only_ by the > actual per-architecture "I'm going to deliver a signal now".
I agree that's the right place for real user processes, but I note that there are drivers that have kernel threads that do basically this:
if (signal_pending(current)) dequeue_signal(current, ...);
for example, drivers/block/nbd.c, and obviously they don't want to still see signal_pending(current) after they have dequeued all the pending signals.
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