linux-kernel - [PATCH v2 5/6] x86/mm: Discard the defination of HAVE_ARCH_PICK_MMAP

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Message-Id: <20211011143150.318239-6-sxwjean@me.com>
Date:   Mon, 11 Oct 2021 22:31:49 +0800
From:   sxwjean@...com
To:     linux-mm@...ck.org, x86@...nel.org
Cc:     Xiongwei Song <sxwjean@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Kees Cook <keescook@...omium.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Al Viro <viro@...iv.linux.org.uk>,
        Gabriel Krisman Bertazi <krisman@...labora.com>,
        Lai Jiangshan <laijs@...ux.alibaba.com>,
        Huang Rui <ray.huang@....com>,
        Yazen Ghannam <yazen.ghannam@....com>,
        Kim Phillips <kim.phillips@....com>,
        Oleg Nesterov <oleg@...hat.com>,
        Balbir Singh <sblbir@...zon.com>,
        "David S. Miller" <davem@...emloft.net>, sxwjean@...com,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/6] x86/mm: Discard the defination of HAVE_ARCH_PICK_MMAP_LAYOUT

From: Xiongwei Song <sxwjean@...il.com>

We've enabled ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT, we will always use
generic arch_pick_mmap_layout(), therefore don't need
HAVE_ARCH_PICK_MMAP_LAYOUT any more.

Signed-off-by: Xiongwei Song <sxwjean@...il.com>
---
 arch/x86/include/asm/processor.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index fb7a4f21d412..2360366ad328 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -709,7 +709,6 @@ extern int			bootloader_version;
 
 extern char			ignore_fpu_irq;
 
-#define HAVE_ARCH_PICK_MMAP_LAYOUT 1
 #define ARCH_HAS_PREFETCHW
 #define ARCH_HAS_SPINLOCK_PREFETCH
 
-- 
2.30.2