Date: Sat, 29 Jun 2013 16:02:06 +0200 From: Jilles Tjoelker <jilles@stack.nl> To: Julian Elischer <julian@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, John Baldwin <jhb@freebsd.org> Subject: Re: svn commit: r252346 - head/share/man/man9 Message-ID: <20130629140206.GA25876@stack.nl> In-Reply-To: <51CEE326.2010903@freebsd.org> References: <201306281633.r5SGXjFU017827@svn.freebsd.org> <51CEDE2B.60204@freebsd.org> <51CEE326.2010903@freebsd.org>
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On Sat, Jun 29, 2013 at 09:37:42PM +0800, Julian Elischer wrote: > On 6/29/13 9:16 PM, Julian Elischer wrote: > >> -If the owner is not currently actually running then the spin step > >> is skipped. > >> +then a thread attempting to acquire the mutex will spin rather > >> than yielding > >> +the processor. > Am I wrong in thinking that it will only spin for a short while, > eventually yielding? > The original text said this but the new text implies it will spin > forever. The code actually spins until the state of the lock changes or the owning thread is no longer running. -- Jilles Tjoelker
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