linux-kernel - [PATCH 2/2] Documentation: admin-guide: kernel-parameters: Add parameter description for slub_leak

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Message-ID: <20240925032256.1782-3-fangzheng.zhang@unisoc.com>
Date: Wed, 25 Sep 2024 11:22:56 +0800
From: Fangzheng Zhang <fangzheng.zhang@...soc.com>
To: Christoph Lameter <cl@...ux.com>, Pekka Enberg <penberg@...nel.org>,
        David
 Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew
 Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Roman
 Gushchin <roman.gushchin@...ux.dev>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>,
        Greg KH <gregkh@...uxfoundation.org>
CC: <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>, <tkjos@...gle.com>,
        Fangzheng Zhang <fangzheng.zhang@...soc.com>,
        Fangzheng Zhang
	<fangzheng.zhang1003@...il.com>,
        Yuming Han <yuming.han@...soc.com>
Subject: [PATCH 2/2] Documentation: admin-guide: kernel-parameters: Add parameter description for slub_leak_panic function

Introduce the details of the slub_leak_panic parameters in
kernel-parameters.txt, so that users can understand how to use
the parameters more quickly.

Signed-off-by: Fangzheng Zhang <fangzheng.zhang@...soc.com>
---
 Documentation/admin-guide/kernel-parameters.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index bb48ae24ae69..8a672766f05f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6130,6 +6130,21 @@
 			For more information see Documentation/mm/slub.rst.
 			(slub_nomerge legacy name also accepted for now)
 
+	slub.leak_panic= [MM, SLUB]
+			Enabling slub.leak_panic can monitor the slub usage
+			in real time on the slub allocation path. When the
+			slub occupancy is abnormal, the alarm or panic will
+			be triggered.
+			Default: N
+
+	slub.leak_panic_threshold= [MM, SLUB]
+			Upper limit value of the slub usage, expressed as
+			a percentage of memtotal. When the usage exceeds
+			the set value (threshold * memtotal / 100), the
+			slub_leak_panic function will be trigger. The
+			value setting range is [0, 100].
+			Default: 0
+
 	slram=		[HW,MTD]
 
 	smart2=		[HW]
-- 
2.17.1