[PATCH] kernel: provide better control & help for SLUB configuration

[Thibaut]

Hi,

> Le 7 nov. 2023 à 23:25, Rafał Miłecki <zajec5 at gmail.com> a écrit :
> 
> From: Rafał Miłecki <rafal at milecki.pl>
> 
> Allow selecting KERNEL_SLUB_DEBUG and KERNEL_SLUB_DEBUG_ON manually and
> provide detailed help for both.
> 
> Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
> ---
> config/Config-kernel.in | 15 +++++++++++++--
> 1 file changed, 13 insertions(+), 2 deletions(-)
> 
> diff --git a/config/Config-kernel.in b/config/Config-kernel.in
> index a1209d82f3..4529c81fc7 100644
> --- a/config/Config-kernel.in
> +++ b/config/Config-kernel.in
> @@ -682,10 +682,21 @@ config KERNEL_PRINTK_TIME
> 	default y
> 
> config KERNEL_SLUB_DEBUG
> -	bool
> +	bool "Enable SLUB debugging support"
> +	help
> +	  This enables various debugging features:
> +	    - Accepts "slub_debug" kernel parameter
> +	    - Provides caches debugging options (e.g. tracing, validating)
> +	    - Adds /sys/kernel/slab/ attrs for reading amounts of *objects*
> +	    - Enables /proc/slabinfo support
> +	    - Prints into when running out of memory

Prints /info/ ?

Also following your previous patch, shouldn’t the help text mention that enabling this option results in significant increase in code size?

Cheers,
T