Re: [patch] doc: add a chapter about trylock functions [Bug 9011]

[Peter Zijlstra]

On Thu, 2008-05-15 at 10:30 +1000, Rusty Russell wrote:
> On Wednesday 14 May 2008 01:31:47 Matti Linnanvuori wrote:
> > +    <function>mutex_trylock()</function> does not suspend your task
> > +    but returns non-zero if it could lock the mutex on the first try
> > +    or 0 if not. This function cannot be safely used in hardware or
> > +    software interrupt contexts despite not sleeping.
> 
> I know this is what the documentation says, but I can't see why.  Ingo?

because who would then own the lock?

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