Re: [PATCH] mm: slub: SLUB_DEBUG=n: use the same alloc/free hooks as for SLUB_DEBUG=y

[Christoph Lameter]

On Thu, 19 Jun 2014, Andrey Ryabinin wrote:

> I see no reason why calls to other debugging subsystems (LOCKDEP,
> DEBUG_ATOMIC_SLEEP, KMEMCHECK and FAILSLAB) are hidden under SLUB_DEBUG.
> All this features should work regardless of SLUB_DEBUG config, as all of
> them already have own Kconfig options.

The reason for hiding this under SLUB_DEBUG was to have some way to
guarantee that no instrumentations is added if one does not want it.

SLUB_DEBUG is on by default and builds in a general
debugging framework that can be enabled at runtime in
production kernels.

If someone disabled SLUB_DEBUG then that has been done with the intend to
get a minimal configuration.


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