NAK: [xenial/linux-kvm][SRU][PATCH 1/1] UBUNTU: [Config]: enable CONFIG_ZRAM

[Kleber Souza]

On 08/03/18 08:51, Po-Hsu Lin wrote:
> BugLink: https://bugs.launchpad.net/bugs/1766823
> 
> zram is an useful module for memory constrained systems. However it's
> imposibble for KVM kernel user to use it.
> 
> Enable the CONFIG_ZRAM and other related configs like in generic kernel to make
> it available for KVM kernels, so that it can pass the ubuntu_zram_smoke_test
> in the SRU regression test suite.
> 
> Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
> ---
>  debian.kvm/config/config.common.ubuntu | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/debian.kvm/config/config.common.ubuntu b/debian.kvm/config/config.common.ubuntu
> index 20e51ff2..d2093c1 100644
> --- a/debian.kvm/config/config.common.ubuntu
> +++ b/debian.kvm/config/config.common.ubuntu
> @@ -1709,6 +1709,7 @@ CONFIG_PERF_EVENTS=y
>  CONFIG_PERF_EVENTS_INTEL_UNCORE=y
>  # CONFIG_PERSISTENT_KEYRINGS is not set
>  CONFIG_PGTABLE_LEVELS=4
> +CONFIG_PGTABLE_MAPPING=y
>  # CONFIG_PHANTOM is not set
>  # CONFIG_PHONET is not set
>  # CONFIG_PHYLIB is not set
> @@ -2291,4 +2292,8 @@ CONFIG_ZLIB_INFLATE=y
>  CONFIG_ZONE_DMA32=y
>  CONFIG_ZONE_DMA_FLAG=0
>  # CONFIG_ZPOOL is not set
> -# CONFIG_ZSMALLOC is not set
> +CONFIG_ZRAM=m
> +CONFIG_ZRAM_LZ4_COMPRESS=y
> +CONFIG_ZRAM_WRITEBACK=y

CONFIG_ZRAM_WRITEBACK hasn't been implemented yet in Xenial's 4.4 kernel.

> +CONFIG_ZSMALLOC=y
> +# CONFIG_ZSMALLOC_STAT is not set
>