From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Rapoport Subject: [PATCH 3/4] init: free_initmem: poison freed init memory Date: Thu, 14 Feb 2019 17:59:36 +0200 Message-ID: <1550159977-8949-4-git-send-email-rppt@linux.ibm.com> References: <1550159977-8949-1-git-send-email-rppt@linux.ibm.com> Return-path: In-Reply-To: <1550159977-8949-1-git-send-email-rppt@linux.ibm.com> Sender: linux-kernel-owner@vger.kernel.org To: Andrew Morton Cc: Christoph Hellwig , Palmer Dabbelt , Richard Kuo , linux-arch@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mike Rapoport List-Id: linux-arch.vger.kernel.org Various architectures including x86 poison the freed init memory. Do the same in the generic free_initmem implementation and switch sparc32 architecture that is identical to the generic code over to it now. Signed-off-by: Mike Rapoport --- arch/sparc/mm/init_32.c | 5 ----- init/main.c | 2 +- 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index d900952..77e8341 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -294,11 +294,6 @@ void __init mem_init(void) mem_init_print_info(NULL); } -void free_initmem (void) -{ - free_initmem_default(POISON_FREE_INITMEM); -} - #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { diff --git a/init/main.c b/init/main.c index 38d69e0..9a61e9c 100644 --- a/init/main.c +++ b/init/main.c @@ -1049,7 +1049,7 @@ static inline void mark_readonly(void) void __weak free_initmem(void) { - free_initmem_default(-1); + free_initmem_default(POISON_FREE_INITMEM); } static int __ref kernel_init(void *unused) -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:45816 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407608AbfBNP74 (ORCPT ); Thu, 14 Feb 2019 10:59:56 -0500 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1EFg1au119658 for ; Thu, 14 Feb 2019 10:59:55 -0500 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2qnaktv98g-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 14 Feb 2019 10:59:55 -0500 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 14 Feb 2019 15:59:52 -0000 From: Mike Rapoport Subject: [PATCH 3/4] init: free_initmem: poison freed init memory Date: Thu, 14 Feb 2019 17:59:36 +0200 In-Reply-To: <1550159977-8949-1-git-send-email-rppt@linux.ibm.com> References: <1550159977-8949-1-git-send-email-rppt@linux.ibm.com> Message-ID: <1550159977-8949-4-git-send-email-rppt@linux.ibm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Andrew Morton Cc: Christoph Hellwig , Palmer Dabbelt , Richard Kuo , linux-arch@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mike Rapoport Message-ID: <20190214155936.J1PXHN_zmIdY6l8rvVWTmnyaazq7ZNgF0zlrSoDRxTY@z> Various architectures including x86 poison the freed init memory. Do the same in the generic free_initmem implementation and switch sparc32 architecture that is identical to the generic code over to it now. Signed-off-by: Mike Rapoport --- arch/sparc/mm/init_32.c | 5 ----- init/main.c | 2 +- 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index d900952..77e8341 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -294,11 +294,6 @@ void __init mem_init(void) mem_init_print_info(NULL); } -void free_initmem (void) -{ - free_initmem_default(POISON_FREE_INITMEM); -} - #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { diff --git a/init/main.c b/init/main.c index 38d69e0..9a61e9c 100644 --- a/init/main.c +++ b/init/main.c @@ -1049,7 +1049,7 @@ static inline void mark_readonly(void) void __weak free_initmem(void) { - free_initmem_default(-1); + free_initmem_default(POISON_FREE_INITMEM); } static int __ref kernel_init(void *unused) -- 2.7.4