Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) client-ip=23.128.96.36;
From:   sxwjean@me.com
To:     vbabka@suse.cz, 42.hyeyoo@gmail.com, cl@linux.com,
        linux-mm@kvack.org
Cc:     penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com,
        roman.gushchin@linux.dev, corbet@lwn.net, keescook@chromium.org,
        arnd@arndb.de, akpm@linux-foundation.org,
        gregkh@linuxfoundation.org, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Xiongwei Song <xiongwei.song@windriver.com>
Subject: [PATCH v2 3/3] mm/slub: correct the default value of slub_min_objects in doc
Date:   Sun,  3 Dec 2023 08:15:01 +0800
Message-Id: <20231203001501.126339-4-sxwjean@me.com>
In-Reply-To: <20231203001501.126339-1-sxwjean@me.com>
References: <20231203001501.126339-1-sxwjean@me.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Xiongwei Song <xiongwei.song@windriver.com>

There is no a value assigned to slub_min_objects by default, it always
is 0 that is initialized by compiler if no assigned value by command line.
min_objects is calculated based on processor numbers in calculate_order().
For more details, see commit 9b2cd506e5f2 ("slub: Calculate min_objects
based on number of processors.")

Signed-off-by: Xiongwei Song <xiongwei.song@windriver.com>
---
 Documentation/mm/slub.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/mm/slub.rst b/Documentation/mm/slub.rst
index be75971532f5..1f4399581449 100644
--- a/Documentation/mm/slub.rst
+++ b/Documentation/mm/slub.rst
@@ -150,7 +150,7 @@ list_lock once in a while to deal with partial slabs. That overhead is
 governed by the order of the allocation for each slab. The allocations
 can be influenced by kernel parameters:
 
-.. slub_min_objects=x		(default 4)
+.. slub_min_objects=x		(default 0)
 .. slub_min_order=x		(default 0)
 .. slub_max_order=x		(default 3 (PAGE_ALLOC_COSTLY_ORDER))
 
-- 
2.34.1