linux-kernel - [PATCH] x86/resctrl: Fix typos in mba

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Message-Id: <1553896238-22130-1-git-send-email-xiaochen.shen@intel.com>
Date:   Sat, 30 Mar 2019 05:50:38 +0800
From:   Xiaochen Shen <xiaochen.shen@...el.com>
To:     tglx@...utronix.de, linux-kernel@...r.kernel.org, x86@...nel.org,
        tony.luck@...el.com, fenghua.yu@...el.com,
        reinette.chatre@...el.com
Cc:     dhowells@...hat.com, pei.p.jia@...el.com, xiaochen.shen@...el.com
Subject: [PATCH] x86/resctrl: Fix typos in mba_sc mount option

With mount option "mba_MBps", we could enable MBA Software Controller
(mba_sc) to specify MBA memory bandwidth in unit MBps (Mega Bytes per
second). See details in Documentation/x86/resctrl_ui.txt.

Commit 23bf1b6be9c2 ("kernfs, sysfs, cgroup, intel_rdt: Support
fs_context") changes the mount option from "mba_MBps" to "mba_mpbs" by
mistake.

Change back from "mba_mpbs" to "mba_MBps", and rename Opt_mba_mpbs to
Opt_mba_mbps.

Fixes: 23bf1b6be9c2 ("kernfs, sysfs, cgroup, intel_rdt: Support fs_context")
Signed-off-by: Xiaochen Shen <xiaochen.shen@...el.com>
---
 arch/x86/kernel/cpu/resctrl/rdtgroup.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 399601e..54b9eef 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -2039,14 +2039,14 @@ static int rdt_get_tree(struct fs_context *fc)
 enum rdt_param {
 	Opt_cdp,
 	Opt_cdpl2,
-	Opt_mba_mpbs,
+	Opt_mba_mbps,
 	nr__rdt_params
 };
 
 static const struct fs_parameter_spec rdt_param_specs[] = {
 	fsparam_flag("cdp",		Opt_cdp),
 	fsparam_flag("cdpl2",		Opt_cdpl2),
-	fsparam_flag("mba_mpbs",	Opt_mba_mpbs),
+	fsparam_flag("mba_MBps",	Opt_mba_mbps),
 	{}
 };
 
@@ -2072,7 +2072,7 @@ static int rdt_parse_param(struct fs_context *fc, struct fs_parameter *param)
 	case Opt_cdpl2:
 		ctx->enable_cdpl2 = true;
 		return 0;
-	case Opt_mba_mpbs:
+	case Opt_mba_mbps:
 		if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
 			return -EINVAL;
 		ctx->enable_mba_mbps = true;
-- 
1.8.3.1