kernel/configs: enable swap extension (CONFIG_MEMCG_SWAP)

libcontainer limits the memory+swap usage by writing the limit at
/sys/fs/cgroup/memory/docker/$CONTID/memory.memsw.limit_in_bytes, this path
doesn't exist if CONFIG_MEMCG_SWAP and CONFIG_MEMCG_SWAP_ENABLED are not
enabled.

fixes #103

Signed-off-by: Julio Montes <julio.montes@intel.com>

kernel/configs/arm64_kata_kvm_4.14.x

@@ -49,7 +49,7 @@ CONFIG_CROSS_COMPILE=""
 CONFIG_LOCALVERSION=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_DEFAULT_HOSTNAME="kata-container"
-# CONFIG_SWAP is not set
+CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
@@ -129,6 +129,8 @@ CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
 CONFIG_CGROUPS=y
 CONFIG_PAGE_COUNTER=y
 CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_MEMCG_SWAP_ENABLED=y
 CONFIG_BLK_CGROUP=y
 # CONFIG_DEBUG_BLK_CGROUP is not set
 CONFIG_CGROUP_WRITEBACK=y
@@ -515,6 +517,7 @@ CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
 # CONFIG_TRANSPARENT_HUGEPAGE is not set
 # CONFIG_ARCH_WANTS_THP_SWAP is not set
 # CONFIG_CLEANCACHE is not set
+# CONFIG_FRONTSWAP is not set
 # CONFIG_CMA is not set
 # CONFIG_ZPOOL is not set
 # CONFIG_ZBUD is not set
@@ -573,6 +576,7 @@ CONFIG_COREDUMP=y
 # Power management options
 #
 # CONFIG_SUSPEND is not set
+# CONFIG_HIBERNATION is not set
 CONFIG_PM=y
 # CONFIG_PM_DEBUG is not set
 CONFIG_PM_CLK=y

kernel/configs/x86_64_kata_kvm_4.14.x

@@ -66,7 +66,7 @@ CONFIG_KERNEL_GZIP=y
 # CONFIG_KERNEL_LZO is not set
 # CONFIG_KERNEL_LZ4 is not set
 CONFIG_DEFAULT_HOSTNAME="kata-container"
-# CONFIG_SWAP is not set
+CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
@@ -150,6 +150,8 @@ CONFIG_ARCH_SUPPORTS_INT128=y
 CONFIG_CGROUPS=y
 CONFIG_PAGE_COUNTER=y
 CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_MEMCG_SWAP_ENABLED=y
 CONFIG_BLK_CGROUP=y
 # CONFIG_DEBUG_BLK_CGROUP is not set
 CONFIG_CGROUP_WRITEBACK=y
@@ -519,6 +521,7 @@ CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
 # CONFIG_TRANSPARENT_HUGEPAGE is not set
 CONFIG_ARCH_WANTS_THP_SWAP=y
 # CONFIG_CLEANCACHE is not set
+# CONFIG_FRONTSWAP is not set
 # CONFIG_CMA is not set
 # CONFIG_ZPOOL is not set
 # CONFIG_ZBUD is not set
@@ -575,6 +578,7 @@ CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
 # Power management and ACPI options
 #
 # CONFIG_SUSPEND is not set
+# CONFIG_HIBERNATION is not set
 # CONFIG_PM is not set
 CONFIG_ACPI=y
 CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y

kernel/kata_config_version

@@ -1 +1 @@
-6
+7