Date: Wed, 12 Jun 2013 20:01:15 +0200 From: Luigi Rizzo <rizzo@iet.unipi.it> To: current@freebsd.org Subject: copyin()/copyout() constraints ? Message-ID: <20130612180115.GA27892@onelab2.iet.unipi.it>
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hi, is it possible to run copyin() or copyout() in one of these cases: 1. while holding a spinlock 2. while holding a regular mutex/lock 3. while holding a read lock (on an RWLOCK or RMLOCK) 4. while holding a write lock (on an RWLOCK or RMLOCK) I suspect #1 is forbidden, but am a bit unclear for the other cases. thanks luigi
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