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

[Po-Hsu Lin]

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 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/debian.kvm/config/config.common.ubuntu b/debian.kvm/config/config.common.ubuntu
index 9b21e28..750ee9d9 100644
--- a/debian.kvm/config/config.common.ubuntu
+++ b/debian.kvm/config/config.common.ubuntu
@@ -1844,6 +1844,7 @@ CONFIG_PERF_EVENTS_INTEL_RAPL=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
@@ -2504,6 +2505,9 @@ CONFIG_ZLIB_INFLATE=y
 # CONFIG_ZONE_DMA is not set
 CONFIG_ZONE_DMA32=y
 # CONFIG_ZPOOL is not set
-# CONFIG_ZSMALLOC is not set
+CONFIG_ZRAM=m
+CONFIG_ZRAM_WRITEBACK=y
+CONFIG_ZSMALLOC=y
+# CONFIG_ZSMALLOC_STAT is not set
 CONFIG_ZSTD_COMPRESS=m
 CONFIG_ZSTD_DECOMPRESS=m
-- 
2.7.4