Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 25 Jun 2012, Glauber Costa wrote:

> diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
> index ccc1899..914ec07 100644
> --- a/include/linux/thread_info.h
> +++ b/include/linux/thread_info.h
> @@ -61,6 +61,12 @@ extern long do_no_restart_syscall(struct restart_block *parm);
>  # define THREADINFO_GFP		(GFP_KERNEL | __GFP_NOTRACK)
>  #endif
>  
> +#ifdef CONFIG_CGROUP_MEM_RES_CTLR_KMEM
> +# define THREADINFO_GFP_ACCOUNTED (THREADINFO_GFP | __GFP_KMEMCG)
> +#else
> +# define THREADINFO_GFP_ACCOUNTED (THREADINFO_GFP)
> +#endif
> +

This type of requirement is going to become nasty very quickly if nobody 
can use __GFP_KMEMCG without testing for CONFIG_CGROUP_MEM_RES_CTLR_KMEM.  
Perhaps define __GFP_KMEMCG to be 0x0 if it's not enabled, similar to how 
kmemcheck does?
--
To unsubscribe from this list: send the line "unsubscribe cgroups" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]     [Monitors]

  Powered by Linux