Re: volatile variable

[Mike Galbraith]

At 10:06 AM 8/11/2003 -0400, Richard B. Johnson wrote:
> On Mon, 11 Aug 2003, David Woodhouse wrote:
>
> > On Fri, 2003-08-01 at 12:38, Richard B. Johnson wrote:
> > > First, there are already procedures available to do just
> > > what you seem to want to do, interruptible_sleep_on() and
> > > interruptible_sleep_on_timeout(). These take care of the
> > > ugly details that can trip up compilers.
> >
> > Just in case there are people reading this who don't realise that
> > Richard is trolling -- do not ever use sleep_on() and friends. They
> > _will_ introduce bugs, and hence they _will_ be removed from the kernel
> > some time in the (hopefully not-so-distant) future.
> >
>
> The linux-2.4.20 contains 516 references to "sleep_on" in the
> `drivers` tree. This is hardly a function or macro that will
> be removed. If there are bugs, they will be fixed, not removed.

They've been declared dead since (grep 'DO NOT use them' patch*) 
2.5.48.  See include/linux/wait.h for details.

        -Mike


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