Re: kmemcheck caught read from freed memory (cfq_free_io_context)

[Andi Kleen]

Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> writes:
> 
> Ok I gave it a go, how bad is this text?

Should be also in the kernel doc description of kmem_cache_create(), so it 
appears in manpages etc.

-Andi
> 
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> ---
> diff --git a/include/linux/slab.h b/include/linux/slab.h
> index f950a89..e049ddc 100644
> --- a/include/linux/slab.h
> +++ b/include/linux/slab.h
> @@ -25,6 +25,32 @@
>  #define SLAB_CACHE_DMA		0x00004000UL	/* Use GFP_DMA memory */
>  #define SLAB_STORE_USER		0x00010000UL	/* DEBUG: Store the last owner for bug hunting */
>  #define SLAB_PANIC		0x00040000UL	/* Panic if kmem_cache_create() fails */
> +/*
> + * SLAB_DESTROY_BY_RCU - **WARNING** READ THIS!
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