linux-kernel - [PATCH] ppc, exec: remove redundant set_fs(USER

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Message-Id: <1307711422-14327-1-git-send-email-minipli@googlemail.com>
Date:	Fri, 10 Jun 2011 15:10:22 +0200
From:	Mathias Krause <minipli@...glemail.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Mathias Krause <minipli@...glemail.com>
Subject: [PATCH] ppc, exec: remove redundant set_fs(USER_DS)

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>
---
 arch/powerpc/kernel/process.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 91e52df..885a2dd 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -831,8 +831,6 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 	unsigned long load_addr = regs->gpr[2];	/* saved by ELF_PLAT_INIT */
 #endif
 
-	set_fs(USER_DS);
-
 	/*
 	 * If we exec out of a kernel thread then thread.regs will not be
 	 * set.  Do it now.
-- 
1.5.6.5

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