Re: why are some atomic_t's not volatile, while most are?

[Jerry Jiang <wjiang@resilience.com>]

Is there some feedback on this point ?

Thank you
./Jerry

On Sun, 1 Jul 2007 08:49:37 -0400 (EDT)
"Robert P. J. Day" <rpjday@mindspring.com> wrote:

> 
>   prompted by the earlier post on "volatile"s, is there a reason that
> most atomic_t typedefs use volatile int's, while the rest don't?
> 
> $ grep "typedef.*struct"  $(find . -name atomic.h)
> ./include/asm-v850/atomic.h:typedef struct { int counter; } atomic_t;
> ./include/asm-mips/atomic.h:typedef struct { volatile int counter; } atomic_t;
> ./include/asm-mips/atomic.h:typedef struct { volatile long counter; } atomic64_t;
> ...
> 
>   etc, etc.  just curious.
> 
> rday
> -- 
> ========================================================================
> Robert P. J. Day
> Linux Consulting, Training and Annoying Kernel Pedantry
> Waterloo, Ontario, CANADA
> 
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