linux-kernel - [PATCH] sys_personality: Streamline code in sys

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Message-ID: <20191126094045.134654-1-bobo.shaobowang@huawei.com>
Date:   Tue, 26 Nov 2019 17:40:45 +0800
From:   Wang ShaoBo <bobo.shaobowang@...wei.com>
To:     <cj.chengjian@...wei.com>, <bobo.shaobowang@...wei.com>,
        <mark.rutland@....com>, <huawei.libin@...wei.com>,
        <guohanjun@...wei.com>, <xiexiuqi@...wei.com>, <wcohen@...hat.com>,
        <linux-kernel@...r.kernel.org>, <mtk.manpages@...il.com>,
        <wezhang@...hat.com>
Subject: [PATCH] sys_personality: Streamline code in sys_personality()

SYSCALL_DEFINE1 in kernel/exec_domain.c looks like verbose,
ksys_personality() can make it more concise.

Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
---
 kernel/exec_domain.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/kernel/exec_domain.c b/kernel/exec_domain.c
index 33f07c5f2515..f7a0512ddc23 100644
--- a/kernel/exec_domain.c
+++ b/kernel/exec_domain.c
@@ -37,10 +37,5 @@ module_init(proc_execdomains_init);
 
 SYSCALL_DEFINE1(personality, unsigned int, personality)
 {
-	unsigned int old = current->personality;
-
-	if (personality != 0xffffffff)
-		set_personality(personality);
-
-	return old;
+	return ksys_personality(personality);
 }
-- 
2.20.1