From 88a3385e9617d7f7960dbe084e5e2cef4d145f94 Mon Sep 17 00:00:00 2001
From: Xunlei Pang <xlpang@redhat.com>
Date: Thu, 4 May 2017 14:56:56 +0800
Subject: [PATCH] kdumpctl: update check_dump_fs_modified() to use "lsinitrd
 -f"

We use faster "lsinitrd XXX -f usr/lib/dracut/build-parameter.txt"
instead of "lsinitrd XXX | grep "^Arguments:" | head -1", this can
save us around one second.

Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Acked-by: Pratyush Anand <panand@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
---
 kdumpctl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kdumpctl b/kdumpctl
index b24e164..b9d5fe6 100755
--- a/kdumpctl
+++ b/kdumpctl
@@ -539,7 +539,7 @@ check_dump_fs_modified()
 		_new_mntpoint="/kdumproot/$(get_mntpoint_from_target $_target)"
 	fi
 
-	_dracut_args=$(lsinitrd $TARGET_INITRD | grep "^Arguments:" | head -1)
+	_dracut_args=$(lsinitrd $TARGET_INITRD -f usr/lib/dracut/build-parameter.txt)
 	if [[ -z "$_dracut_args" ]];then
 		echo "Warning: No dracut arguments found in initrd"
 		return 0