From c1dc14c4182698630a6256d318ed5d1c740061e1 Mon Sep 17 00:00:00 2001
From: Justin Cormack <justin.cormack@unikernel.com>
Date: Thu, 17 Dec 2015 15:45:30 +0000
Subject: [PATCH] add btrfs and dm backend kernel support

Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
---
 alpine/kernel/kernel_config | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/alpine/kernel/kernel_config b/alpine/kernel/kernel_config
index 5d31af889..68cdff01f 100644
--- a/alpine/kernel/kernel_config
+++ b/alpine/kernel/kernel_config
@@ -1472,7 +1472,32 @@ CONFIG_SATA_AHCI_PLATFORM=y
 # CONFIG_SATA_ACARD_AHCI is not set
 # CONFIG_SATA_SIL24 is not set
 # CONFIG_ATA_SFF is not set
-# CONFIG_MD is not set
+CONFIG_MD=y
+# CONFIG_BLK_DEV_MD is not set
+# CONFIG_BCACHE is not set
+CONFIG_BLK_DEV_DM_BUILTIN=y
+CONFIG_BLK_DEV_DM=y
+# CONFIG_DM_MQ_DEFAULT is not set
+# CONFIG_DM_DEBUG is not set
+CONFIG_DM_BUFIO=y
+CONFIG_DM_BIO_PRISON=y
+CONFIG_DM_PERSISTENT_DATA=y
+# CONFIG_DM_DEBUG_BLOCK_STACK_TRACING is not set
+# CONFIG_DM_CRYPT is not set
+# CONFIG_DM_SNAPSHOT is not set
+CONFIG_DM_THIN_PROVISIONING=y
+# CONFIG_DM_CACHE is not set
+# CONFIG_DM_ERA is not set
+# CONFIG_DM_MIRROR is not set
+# CONFIG_DM_RAID is not set
+# CONFIG_DM_ZERO is not set
+# CONFIG_DM_MULTIPATH is not set
+# CONFIG_DM_DELAY is not set
+# CONFIG_DM_UEVENT is not set
+# CONFIG_DM_FLAKEY is not set
+# CONFIG_DM_VERITY is not set
+# CONFIG_DM_SWITCH is not set
+# CONFIG_DM_LOG_WRITES is not set
 # CONFIG_TARGET_CORE is not set
 # CONFIG_FUSION is not set
 
@@ -2460,7 +2485,12 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_JFS_FS is not set
 # CONFIG_XFS_FS is not set
 # CONFIG_GFS2_FS is not set
-# CONFIG_BTRFS_FS is not set
+CONFIG_BTRFS_FS=y
+# CONFIG_BTRFS_FS_POSIX_ACL is not set
+# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
+# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
+# CONFIG_BTRFS_DEBUG is not set
+# CONFIG_BTRFS_ASSERT is not set
 # CONFIG_NILFS2_FS is not set
 # CONFIG_F2FS_FS is not set
 # CONFIG_FS_DAX is not set
@@ -2589,6 +2619,7 @@ CONFIG_NFS_SWAP=y
 CONFIG_NFS_V4_1=y
 # CONFIG_NFS_V4_2 is not set
 CONFIG_PNFS_FILE_LAYOUT=y
+CONFIG_PNFS_BLOCK=y
 CONFIG_PNFS_FLEXFILE_LAYOUT=m
 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
 # CONFIG_NFS_V4_1_MIGRATION is not set
@@ -2845,6 +2876,7 @@ CONFIG_INTEGRITY=y
 # CONFIG_EVM is not set
 CONFIG_DEFAULT_SECURITY_DAC=y
 CONFIG_DEFAULT_SECURITY=""
+CONFIG_XOR_BLOCKS=y
 CONFIG_CRYPTO=y
 
 #
@@ -2998,6 +3030,7 @@ CONFIG_BINARY_PRINTF=y
 #
 # Library routines
 #
+CONFIG_RAID6_PQ=y
 CONFIG_BITREVERSE=y
 # CONFIG_HAVE_ARCH_BITREVERSE is not set
 CONFIG_RATIONAL=y