From fc54e0e6c39b95ffe1d1c091fd9d0f89066b5d67 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=B6kt=C3=BCrk=20Y=C3=BCksek?= <gokturk@gentoo.org>
Date: Mon, 4 Sep 2017 20:47:19 -0400
Subject: [PATCH] kpatch-build: allow the number of make jobs to be specified
 using CPUS

Instead of always using the maximum number of CPUs available, allow
user to tune the number of make jobs using the command line argument
('-j', '--jobs').
---
 kpatch-build/kpatch-build | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/kpatch-build/kpatch-build b/kpatch-build/kpatch-build
index b0c3a1f..68b87ba 100755
--- a/kpatch-build/kpatch-build
+++ b/kpatch-build/kpatch-build
@@ -326,6 +326,7 @@ usage() {
 	echo "		-s, --sourcedir	   Specify kernel source directory" >&2
 	echo "		-c, --config	   Specify kernel config file" >&2
 	echo "		-v, --vmlinux	   Specify original vmlinux" >&2
+	echo "		-j, --jobs	   Specify the number of make jobs" >&2
 	echo "		-t, --target	   Specify custom kernel build targets" >&2
 	echo "		-o, --output	   Specify output folder" >&2
 	echo "		-d, --debug	   Keep scratch files in /tmp" >&2
@@ -334,7 +335,7 @@ usage() {
 	echo "		                   (not recommended)" >&2
 }
 
-options=$(getopt -o hr:s:c:v:t:o:d -l "help,sourcerpm:,sourcedir:,config:,vmlinux:,target:,output:,debug,skip-gcc-check,skip-cleanup" -- "$@") || die "getopt failed"
+options=$(getopt -o hr:s:c:v:j:t:o:d -l "help,sourcerpm:,sourcedir:,config:,vmlinux:,jobs:,target:,output:,debug,skip-gcc-check,skip-cleanup" -- "$@") || die "getopt failed"
 
 eval set -- "$options"
 
@@ -367,6 +368,11 @@ while [[ $# -gt 0 ]]; do
 		VMLINUX=$(readlink -f "$2")
 		shift
 		;;
+	-j|--jobs)
+		[[ ! "$2" -gt 0 ]] && die "Invalid number of make jobs '$2'"
+		CPUS="$2"
+		shift
+		;;
 	-t|--target)
 		TARGETS="$TARGETS $2"
 		shift