From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Rapoport Subject: [PATCH v2 3/4] init: free_initmem: poison freed init memory Date: Mon, 18 Feb 2019 20:41:24 +0200 Message-ID: <1550515285-17446-4-git-send-email-rppt@linux.ibm.com> References: <1550515285-17446-1-git-send-email-rppt@linux.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id: References:In-Reply-To:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=BQ8G9BVE3DVzVU729q/zVDJ/xt9JYKvdIYyu+GEPA5A=; b=MMBGrl6YLqy8xFyin7sLyZZ8uY 65ITCHHC8ald1TF8MWM3+gAe1X+jrCf0RNXn0X4ZVYZyx8cpLG/ZfnRnVtgx2z/+FnU74jz/2LytH J+OXFaPz5/TwTyERtmWAtLj5UwSyk7FKHevkpzrDM3mldHBxsV35auMzM70c4+1SFB9gK56QAeK/P tszHN/x8/ws/RVDqP+3ZybI4R3Lgxi6pp6oXfwll52by0rLateZyOzn80+UsLQWXCKuAuQPb4Zk/G rzoy6bWHpsiZ0XykfPM4dJFvdQG4uonRXAJpmUvmJvhe+ysBFQl7l8YJJFNmW8ybWNtpV3dE38MYm iZLkermQ==; In-Reply-To: <1550515285-17446-1-git-send-email-rppt@linux.ibm.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+glpr-linux-riscv=m.gmane.org@lists.infradead.org To: Andrew Morton Cc: linux-arch@vger.kernel.org, linux-hexagon@vger.kernel.org, Palmer Dabbelt , linux-kernel@vger.kernel.org, Richard Kuo , linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mike Rapoport , Christoph Hellwig 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 f0dbc0b..d02a9ae 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); -} - void sparc_flush_page_to_ram(struct page *page) { unsigned long vaddr = (unsigned long)page_address(page); 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