From c5ebc6337daff29eab2faf3ccbf49cbf4fab821c Mon Sep 17 00:00:00 2001
From: Amerigo Wang <amwang@redhat.com>
Date: Mon, 1 Aug 2011 17:19:24 +0800
Subject: [PATCH] mkdumprd: move module inclusion code to module-setup.sh

---
 kdump_dracut_modules/99kdumpbase/check        |  9 ---
 kdump_dracut_modules/99kdumpbase/install      |  9 ---
 .../99kdumpbase/module-setup.sh               | 77 +++++++++++++++++++
 mkdumprd                                      | 10 ++-
 sources                                       |  1 +
 5 files changed, 85 insertions(+), 21 deletions(-)
 delete mode 100755 kdump_dracut_modules/99kdumpbase/check
 delete mode 100755 kdump_dracut_modules/99kdumpbase/install
 create mode 100755 kdump_dracut_modules/99kdumpbase/module-setup.sh

diff --git a/kdump_dracut_modules/99kdumpbase/check b/kdump_dracut_modules/99kdumpbase/check
deleted file mode 100755
index 191fa75..0000000
--- a/kdump_dracut_modules/99kdumpbase/check
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/bash
-
-#kdumpctl sets this explicitly
-if [ -z "$IN_KDUMP" ]
-then
-	exit 1
-fi
-exit 0
-
diff --git a/kdump_dracut_modules/99kdumpbase/install b/kdump_dracut_modules/99kdumpbase/install
deleted file mode 100755
index 6e22aa9..0000000
--- a/kdump_dracut_modules/99kdumpbase/install
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/bash
-
-inst "/bin/date" "/bin/date"
-inst "/bin/sync" "/bin/sync"
-inst "/usr/bin/reboot" "/bin/reboot"
-inst "/sbin/makedumpfile" "/sbin/makedumpfile"
-inst "/etc/kdump.conf" "/etc/kdump.conf"
-inst_hook pre-pivot 01 "$moddir/kdump.sh"
-
diff --git a/kdump_dracut_modules/99kdumpbase/module-setup.sh b/kdump_dracut_modules/99kdumpbase/module-setup.sh
new file mode 100755
index 0000000..cd466bd
--- /dev/null
+++ b/kdump_dracut_modules/99kdumpbase/module-setup.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+check() {
+    [[ $debug ]] && set -x
+    #kdumpctl sets this explicitly
+    if [ -z "$IN_KDUMP" ] || [ ! -f /etc/kdump.conf ]
+    then
+        return 1
+    fi
+    return 0
+}
+
+is_lvm() { [[ $(get_fs_type /dev/block/$1) = LVM2_member ]]; }
+is_mdraid() { [[ -d "/sys/dev/block/$1/md" ]]; }
+is_btrfs() { get_fs_type /dev/block/$1 | grep -q btrfs; }
+is_mpath() {
+    [ -e /sys/dev/block/$1/dm/uuid ] || return 1
+    [[ $(cat /sys/dev/block/$1/dm/uuid) =~ ^mpath- ]] && return 0
+    return 1
+}
+is_dmraid() { get_fs_type /dev/block/$1 |grep -v linux_raid_member | \
+    grep -q _raid_member; }
+
+is_iscsi() (
+    [[ -L /sys/dev/block/$1 ]] || return
+    cd "$(readlink -f /sys/dev/block/$1)"
+    until [[ -d sys || -d iscsi_session ]]; do
+        cd ..
+    done
+    [[ -d iscsi_session ]]
+)
+
+pull_dracut_modules() {
+    local _dev=$1
+    local _is_uuid=`echo $1 | grep UUID`
+    local _is_label=`echo $1 | grep LABEL`
+
+    if [ -n "$_is_uuid" -o -n "$_is_label" ]
+    then
+        _dev=`findfs $1`
+    fi
+
+    . $dracutfunctions
+    unset MAJOR MINOR
+    eval $(udevadm info --query=env --name="$_dev" | egrep '^(MAJOR|MINOR)')
+    check_block_and_slaves is_btrfs "$MAJOR:$MINOR" && echo -n "btrfs "
+    check_block_and_slaves is_lvm "$MAJOR:$MINOR" && echo -n "lvm "
+    check_block_and_slaves is_mdraid "$MAJOR:$MINOR" && echo -n "mdraid "
+    check_block_and_slaves is_mpath "$MAJOR:$MINOR" && echo -n "multipath "
+    check_block_and_slaves is_iscsi "$MAJOR:$MINOR" && echo -n "iscsi "
+    check_block_and_slaves is_dmraid "$MAJOR:$MINOR" && echo -n "dmraid "
+    unset MAJOR MINOR
+}
+
+depends() {
+    local _deps="base shutdown"
+    while read config_opt config_val;
+    do
+        case "$config_opt" in
+        ext[234]|xfs|btrfs|minix|raw)
+            _deps="$_deps `pull_dracut_modules "$config_val"`"
+            ;;
+        esac
+    done < /etc/kdump.conf
+    echo $_deps
+    return 0
+}
+
+install() {
+    inst "/bin/date" "/bin/date"
+    inst "/bin/sync" "/bin/sync"
+    inst "/usr/bin/reboot" "/bin/reboot"
+    inst "/sbin/makedumpfile" "/sbin/makedumpfile"
+    inst "/etc/kdump.conf" "/etc/kdump.conf"
+    inst_hook pre-pivot 01 "$moddir/kdump.sh"
+}
+
diff --git a/mkdumprd b/mkdumprd
index 9a1edcc..e2edc64 100644
--- a/mkdumprd
+++ b/mkdumprd
@@ -10,12 +10,16 @@ export IN_KDUMP=1
 
 conf_file="/etc/kdump.conf"
 extra_modules=""
-dracut_args="-H -o i18n -o plymouth --add shutdown -c /dev/null"
+dracut_args="-m kdumpbase --add dash -c /dev/null"
 
 add_dracut_arg() {
     dracut_args="$dracut_args $*"
 }
 
+add_dracut_module() {
+    add_dracut_arg "--add $1"
+}
+
 while [ $# -gt 0 ]; do
     case $1 in
     -d)
@@ -61,8 +65,8 @@ if [ -n "$conf_file" ]; then
             check_local "$config_val" 1
             ;;
         net)
-            add_dracut_arg "--add network"
             check_remote "$config_val"
+            add_dracut_module "nfs"
             ;;
         core_collector)
             add_dracut_arg "-I ${config_val% *}"
@@ -85,6 +89,6 @@ then
     add_dracut_arg "--add-drivers $extra_modules"
 fi
 
-dracut $dracut_args "$@"
+dracut $dracut_args -M "$@"
 exit $?
 
diff --git a/sources b/sources
index afce193..01cc25d 100644
--- a/sources
+++ b/sources
@@ -12,3 +12,4 @@ d220ff5e4b07c34701d9a1fe991ef2e4  dracut-files.tbz2
 1548d83e2713660c4cbd2c284fdad25b  dracut-files.tbz2
 adea715e719a4c460c41d8134aafa95b  dracut-files.tbz2
 c7e9dd35476cb33f09f22037f6c16982  dracut-files.tbz2
+2cda75991642bd2ad58e93e89297748b  dracut-files.tbz2