From 94988e9e3d8ad2989ccab208b7ae69b238e00ade Mon Sep 17 00:00:00 2001
From: Tao Liu <ltao@redhat.com>
Date: Nov 09 2022 07:56:18 +0000
Subject: Add lvm2 thin provision dump target checker


resolves: bz2083475
upstream: fedora
conflict: none

commit 0a5b71d123ee41b244732fb04d224d36e9ccff84
Author: Tao Liu <ltao@redhat.com>
Date:   Sat Oct 8 15:41:39 2022 +0800

    Add lvm2 thin provision dump target checker

    We need to check if a directory or a device is lvm2 thinp target.

    First, we use get_block_dump_target() to convert dump path into
    block device, then we check if the device is lvm2 thinp target by
    cmd lvs.

    is_lvm2_thinp_device is now located in kdump-lib-initramfs.sh, for it
    will be used in 2nd kernel. is_lvm2_thinp_dump_target is located in
    kdump-lib.sh, for it is only used in 1st kernel, and it has dependencies
    which exist in kdump-lib.sh.

    Signed-off-by: Tao Liu <ltao@redhat.com>
    Reviewed-by: Philipp Rudo <prudo@redhat.com>

Signed-off-by: Tao Liu <ltao@redhat.com>

---

diff --git a/kdump-lib-initramfs.sh b/kdump-lib-initramfs.sh
index cd34162..db501e9 100755
--- a/kdump-lib-initramfs.sh
+++ b/kdump-lib-initramfs.sh
@@ -152,3 +152,12 @@ is_fs_dump_target()
 {
 	[ -n "$(kdump_get_conf_val "ext[234]\|xfs\|btrfs\|minix\|virtiofs")" ]
 }
+
+is_lvm2_thinp_device()
+{
+	_device_path=$1
+	_lvm2_thin_device=$(lvm lvs -S 'lv_layout=sparse && lv_layout=thin' \
+		--nosuffix --noheadings -o vg_name,lv_name "$_device_path" 2> /dev/null)
+
+	[ -n "$_lvm2_thin_device" ]
+}
diff --git a/kdump-lib.sh b/kdump-lib.sh
index 0e89268..0c57a38 100755
--- a/kdump-lib.sh
+++ b/kdump-lib.sh
@@ -116,6 +116,12 @@ is_dump_to_rootfs()
 	[[ $(kdump_get_conf_val 'failure_action\|default') == dump_to_rootfs ]]
 }
 
+is_lvm2_thinp_dump_target()
+{
+	_target=$(get_block_dump_target)
+	[ -n "$_target" ] && is_lvm2_thinp_device "$_target"
+}
+
 get_failure_action_target()
 {
 	local _target