Re: [PATCH] only irq-safe atomic ops

Russell King (rmk@arm.linux.org.uk)
Sat, 23 Feb 2002 09:38:12 +0000

On Sat, Feb 23, 2002 at 02:29:48AM -0500, Robert Love wrote:
> This would be atomic and thus preempt-safe on any sane arch I know, as
> long as we are dealing with a normal type int. Admittedly, however, we
> can't be sure what the compiler would do.

Any sane RISC architecture probably doesn't have a single "increment this
memory location" instruction.

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


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