| Date | Thu, 4 Sep 2014 10:51:32 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH v2 13/17] locks: remove i_have_this_lease check from __break_lease |
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On Thu, Sep 04, 2014 at 08:38:39AM -0400, Jeff Layton wrote: > I think that the intent of this code was to ensure that a process won't > deadlock if it has one fd open with a lease on it and then breaks that > lease by opening another fd. In that case it'll treat the __break_lease > call as if it were non-blocking. > > This seems wrong -- the process could (for instance) be multithreaded > and managing different fds via different threads. I also don't see any > mention of this limitation in the (somewhat sketchy) documentation. > > Remove the check and the non-blocking behavior when i_have_this_lease > is true.
This looks reasonable to me, but I'm always very worried about changing userspace exposed behavior..
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