On Thu, 24 May 2007 12:33:23 +0200
Jarek Poplawski <[email protected]> wrote:
>
> smpboot: cachesize comparison fix in smp_tune_scheduling()
>
> boot_cpu_data.x86_cache_size is signed int and can be < 0 too.
>
> PS: this function is removed from current -mm.
>
>
> Signed-off-by: Jarek Poplawski <[email protected]>
>
> ---
>
> diff -Nurp 2.6.22-rc2-git5-/arch/i386/kernel/smpboot.c 2.6.22-rc2-git5/arch/i386/kernel/smpboot.c
> --- 2.6.22-rc2-git5-/arch/i386/kernel/smpboot.c 2007-05-24 09:37:11.000000000 +0200
> +++ 2.6.22-rc2-git5/arch/i386/kernel/smpboot.c 2007-05-24 11:48:03.000000000 +0200
> @@ -948,7 +948,7 @@ static void smp_tune_scheduling(void)
> if (cpu_khz) {
> cachesize = boot_cpu_data.x86_cache_size;
>
> - if (cachesize > 0)
> + if ((long)cachesize > 0)
> max_cache_size = cachesize * 1024;
> }
> }
Under what conditions can boot_cpu_data.x86_cache_size be negative?
Have negative values of boot_cpu_data.x86_cache_size been observed in
practice?
Thanks.
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