!31 Support IRQBALANCE_BANNED_CPULIST env variable

From: @yeyunfeng-dev
Reviewed-by: @SuperSix173
Signed-off-by: @SuperSix173

Add-IRQBALANCE_BANNED_CPULIST-to-env-file.patch

@@ -0,0 +1,39 @@
+From 31c7d128fd6f083c7395b327f824a0c11d5e380f Mon Sep 17 00:00:00 2001
+From: Yunfeng Ye <yeyunfeng@huawei.com>
+Date: Sat, 21 Nov 2020 14:27:28 +0800
+Subject: [PATCH] Add IRQBALANCE_BANNED_CPULIST to env file
+
+Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
+---
+ misc/irqbalance.env | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+diff --git a/misc/irqbalance.env b/misc/irqbalance.env
+index 23570b2..237e4af 100644
+--- a/misc/irqbalance.env
++++ b/misc/irqbalance.env
+@@ -22,6 +22,21 @@
+ #IRQBALANCE_BANNED_CPUS=
+ 
+ #
++# IRQBALANCE_BANNED_CPULIST
++#    The CPUs list which allows you to indicate which CPUs should
++#    be skipped when reblancing IRQs. CPU numbers in CPUs list will
++#    not have any IRQs assigned to them on rebalance.
++#
++#      The format of CPUs list is:
++#        <cpu number>,...,<cpu number>
++#      or a range:
++#        <cpu number>-<cpu number>
++#      or a mixture:
++#        <cpu number>,...,<cpu number>-<cpu number>
++#
++#IRQBALANCE_BANNED_CPULIST=
++
++#
+ # IRQBALANCE_ARGS
+ #    Append any args here to the irqbalance daemon as documented in the man
+ #    page.
+-- 
+1.8.3.1
+

add-env-variable-to-ban-cpus-using-cpulist-syntax.patch

@@ -0,0 +1,52 @@
+From 677b686e223c74e64f5b230bdb4079555a5a62a9 Mon Sep 17 00:00:00 2001
+From: ChanderG <mail@chandergovind.org>
+Date: Tue, 25 Aug 2020 15:46:56 +0530
+Subject: [PATCH] add env variable to ban cpus using cpulist syntax
+
+allows banning of cpus using the taskset cpulist syntax in addition to the
+bitmap syntax supported via the existing environment variable
+IRQBALANCE_BANNED_CPUS
+
+Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
+---
+ cputree.c    | 6 ++++++
+ irqbalance.1 | 6 ++++++
+ 2 files changed, 12 insertions(+)
+
+diff --git a/cputree.c b/cputree.c
+index 0433657..00cf47f 100644
+--- a/cputree.c
++++ b/cputree.c
+@@ -127,6 +127,12 @@ static void setup_banned_cpus(void)
+ 		goto out;
+ 	}
+ 
++	env = getenv("IRQBALANCE_BANNED_CPULIST");
++	if (env && strlen(env)) {
++		cpulist_parse(env, strlen(env), banned_cpus);
++		goto out;
++	}
++
+ 	path = "/sys/devices/system/cpu/isolated";
+ 	process_one_line(path, get_mask_from_cpulist, &isolated_cpus);
+ 
+diff --git a/irqbalance.1 b/irqbalance.1
+index 3005f6b..33ffd26 100644
+--- a/irqbalance.1
++++ b/irqbalance.1
+@@ -158,6 +158,12 @@ Provides a mask of CPUs which irqbalance should ignore and never assign interrup
+ If not specified, irqbalance use mask of isolated and adaptive-ticks CPUs on the
+ system as the default value.
+ 
++.TP
++.B IRQBALANCE_BANNED_CPULIST
++Provides a cpulist which irqbalance should ignore and never assign interrupts to.
++If not specified, irqbalance use mask of isolated and adaptive-ticks CPUs on the
++system as the default value.
++
+ .SH "SIGNALS"
+ .TP
+ .B SIGHUP
+-- 
+1.8.3.1
+

irqbalance.spec

@@ -1,7 +1,7 @@
 Summary:        A dynamic adaptive IRQ balancing daemon
 Name:           irqbalance
 Version:        1.7.0
-Release:        2
+Release:        3
 Epoch:          3
 License:        GPLv2
 Source0:        https://github.com/Irqbalance/irqbalance/archive/v%{version}.tar.gz#/irqbalance-%{version}.tar.gz
@@ -21,6 +21,9 @@ Requires: numactl-libs
 
 %define _hardened_build 1
 
+Patch6000: add-env-variable-to-ban-cpus-using-cpulist-syntax.patch
+Patch6001: Add-IRQBALANCE_BANNED_CPULIST-to-env-file.patch
+
 %description
 Irqbalance is a daemon to help balance the cpu load generated by
 interrupts across all of a systems cpus. Irqbalance identifies the
@@ -77,6 +80,12 @@ fi
 /sbin/chkconfig --del %{name} >/dev/null 2>&1 || :
 
 %changelog
+* Tue Jan 15 2021 Yunfeng Ye<yeyunfeng@huawei.com> - 3:1.7.0-3
+- Type:enhanced
+- ID:NA
+- SUG:restart
+- DESC:support IRQBALANCE_BANNED_CPULIST env variable
+
 * Thu Sep 10 2020 Chunsheng Luo <luochunsheng@huawei.com> - 3:1.7.0-2
 - Type:enhanced
 - ID:NA