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#!/bin/sh

set -ef

usage()

{

echo "usage: $0 <kernel source tree>" >&2

exit 1

}

if ! [ -d "$1" ] ; then

usage

KERNEL_DIR="$1"

if ! [ -e 'zfs_config.h' ]

then

echo "$0: you did not run configure, or you're not in the ZFS source directory."

echo "$0: run configure with --with-linux=$KERNEL_DIR and --enable-linux-builtin."

exit 1

fi >&2

make clean ||:

make gitrev

rm -rf "$KERNEL_DIR/include/zfs" "$KERNEL_DIR/fs/zfs"

cp -R include "$KERNEL_DIR/include/zfs"

cp -R module "$KERNEL_DIR/fs/zfs"

cp zfs_config.h "$KERNEL_DIR/include/zfs/"

cat > "$KERNEL_DIR/fs/zfs/Kconfig" <<EOF

config ZFS

tristate "ZFS filesystem support"

depends on EFI_PARTITION

depends on BLOCK

select ZLIB_INFLATE

select ZLIB_DEFLATE

help

This is the ZFS filesystem from the OpenZFS project.

See https://github.com/openzfs/zfs

To compile this file system support as a module, choose M here.

If unsure, say N.

config ZFS_DEBUG

bool "ZFS debugging"

depends on ZFS

help

Enable ZFS debugging. This turns on all ASSERT() assertions,

enables additional debug-only code paths, and promotes

compiler warnings to errors. This should only be enabled for

development or troubleshooting.

If unsure, say N.

EOF

sed -i '/source "fs\/ext2\/Kconfig\"/i\source "fs/zfs/Kconfig"' "$KERNEL_DIR/fs/Kconfig"

echo 'obj-$(CONFIG_ZFS) += zfs/' >> "$KERNEL_DIR/fs/Makefile"

echo "$0: done. now you can build the kernel with ZFS support." >&2

echo "$0: make sure you enable ZFS support (CONFIG_ZFS) before building." >&2