Messages in this thread | | | Date | Thu, 13 Apr 2006 15:33:49 +1000 | From | Nick Piggin <> | Subject | Re: PROBLEM: pthread-safety bug in write(2) on Linux 2.6.x |
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Andrew Morton wrote:
> OK, there _might_ be a real-world case: threads appending logging > information to a flat file. Trivially workable-around with a userspace > lock, or by switching to stdio (same thing). > > Yes, really we should fix it. But it's not worth adding more overhead to > do so. So the fix would involve widespread (but simple) change, to draw > that f_pos update inside i_mutex.
Didn't Linus explicitly made the decision not to add synchronisation for writes with the same file?
http://groups.google.com/group/fa.linux.kernel/msg/ef66c762e737bab7?hl=en& Is the closest I could find, but I'm sure he said something similar, specifically about write(2) vs write(2).
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