linux-kernel - [PATCH 3/4] um, exec: remove redundant set_fs(USER

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Message-Id: <1309212931-19772-3-git-send-email-richard@nod.at>
Date:	Tue, 28 Jun 2011 00:15:30 +0200
From:	Richard Weinberger <richard@....at>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org,
	user-mode-linux-devel@...ts.sourceforge.net,
	Mathias Krause <minipli@...glemail.com>,
	Richard Weinberger <richard@....at>
Subject: [PATCH 3/4] um, exec: remove redundant set_fs(USER_DS)

From: Mathias Krause <minipli@...glemail.com>

The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.

Signed-off-by: Mathias Krause <minipli@...glemail.com>
Cc: Richard Weinberger <richard@....at>
Signed-off-by: Richard Weinberger <richard@....at>
---
 arch/um/kernel/exec.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 09bd7b5..939a4a6 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -38,7 +38,6 @@ void flush_thread(void)
 
 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
 {
-	set_fs(USER_DS);
 	PT_REGS_IP(regs) = eip;
 	PT_REGS_SP(regs) = esp;
 }
-- 
1.7.5.4

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