linux-kernel - [PATCH 1/2] mm/slub: remove a redundant assignment in ___slab

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20170507031215.3130-1-richard.weiyang@gmail.com>
Date:   Sun,  7 May 2017 11:12:14 +0800
From:   Wei Yang <richard.weiyang@...il.com>
To:     cl@...ux.com, penberg@...nel.org, rientjes@...gle.com,
        iamjoonsoo.kim@....com, akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Wei Yang <richard.weiyang@...il.com>
Subject: [PATCH 1/2] mm/slub: remove a redundant assignment in ___slab_alloc()

When the code comes to this point, there are two cases:
1. cpu_slab is deactivated
2. cpu_slab is empty

In both cased, cpu_slab->freelist is NULL at this moment.

This patch removes the redundant assignment of cpu_slab->freelist.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
---
 mm/slub.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index 795112b65c61..83332f19d226 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2572,7 +2572,6 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
 		page = c->page = slub_percpu_partial(c);
 		slub_set_percpu_partial(c, page);
 		stat(s, CPU_PARTIAL_ALLOC);
-		c->freelist = NULL;
 		goto redo;
 	}
 
-- 
2.11.0