Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH -mm 3/3] proc: make task_sig() lockless | Date | Sat, 10 Apr 2010 09:16:19 +0100 |
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Roland McGrath <roland@redhat.com> wrote:
> I'm not so sure. Operations like sigprocmask and sigaction really have > always been entirely atomic from the userland perspective before. Now it > becomes possible to read from /proc e.g. a blocked set that never existed > as such (one word updated by sigprocmask but not yet the next word).
If you have a small userspace buffer, that was previously possible too.
David
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