Message ID | b0915f0de757714e163afe719f11f33a697f58f0.1640891329.git.andreyknvl@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E33FBC433F5 for <linux-arm-kernel@archiver.kernel.org>; Thu, 30 Dec 2021 19:22:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3l6oXAb16Vej3Z0pZcv792+lxhTvqm82m/PaNlX1a20=; b=SmU9BUj8yva8KL X1aaqvTsFfrn/IQdMj9M6nnBKNKeleo7YwZKM35Efh+1JatlsPosjkBbD+9vZIJN8zeogY+OO7RKu ck6uNOyrn5kLMozxyGQmmLkAPHwNpnTMdAhSnU4opVGfxnlglugnD4gqhS3adD7lCnqjVvdPfMMHg O0b6tg/Z+16tABvMHbYw4h5ynT3oGVsPs0TTW4lUkGIIj7GopdqO61Oh1aSrXE+5tno7biEu94jaK 1k02u/+ICtjdmPRo5y3hLclOc7+CMfWR3SQh7reYCwda1UP7GSD0bXEjzHq5itAowS/FxRzPFdX2T jjSV8FB95QVMwmjaGMrA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n30yc-004xUN-PA; Thu, 30 Dec 2021 19:20:39 +0000 Received: from out1.migadu.com ([2001:41d0:2:863f::]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n30rX-004u1C-JD for linux-arm-kernel@lists.infradead.org; Thu, 30 Dec 2021 19:13:21 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1640891598; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4DHacFnXGCSEm/ica2zjN2vX/YyWWuxeEI28IqJpiO4=; b=LwOZ1pjOApWaPvbrdcIy8Ahx/x0mJ96NWKMO+jdbIBvhdb8HeHqYUT2QwUypDCnb4hgiBO NDmnh+hBCb20yayYdXAnbzQQGQXU5Vs8zrKbWLUb7RnBpuPHCehXV7AVi2VsYzbm7DHebA Y8AAu7nvQE1mAOw5bG2ZnBvw9BRetr0= From: andrey.konovalov@linux.dev To: Andrew Morton <akpm@linux-foundation.org> Cc: Andrey Konovalov <andreyknvl@gmail.com>, Marco Elver <elver@google.com>, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, Andrey Ryabinin <ryabinin.a.a@gmail.com>, kasan-dev@googlegroups.com, linux-mm@kvack.org, Vincenzo Frascino <vincenzo.frascino@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>, linux-arm-kernel@lists.infradead.org, Peter Collingbourne <pcc@google.com>, Evgenii Stepanov <eugenis@google.com>, linux-kernel@vger.kernel.org, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH mm v5 13/39] kasan, page_alloc: move kernel_init_free_pages in post_alloc_hook Date: Thu, 30 Dec 2021 20:12:15 +0100 Message-Id: <b0915f0de757714e163afe719f11f33a697f58f0.1640891329.git.andreyknvl@google.com> In-Reply-To: <cover.1640891329.git.andreyknvl@google.com> References: <cover.1640891329.git.andreyknvl@google.com> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: linux.dev X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211230_111319_862405_6F8A5FAE X-CRM114-Status: GOOD ( 11.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
Series |
kasan, vmalloc, arm64: add vmalloc tagging support for SW/HW_TAGS
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expand
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diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d96a43db90c8..ddf677c23298 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2435,14 +2435,18 @@ inline void post_alloc_hook(struct page *page, unsigned int order, init = false; } if (kasan_has_integrated_init()) { - if (!init_tags) + if (!init_tags) { kasan_unpoison_pages(page, order, init); + + /* Note that memory is already initialized by KASAN. */ + init = false; + } } else { kasan_unpoison_pages(page, order, init); - - if (init) - kernel_init_free_pages(page, 1 << order); } + /* If memory is still not initialized, do it now. */ + if (init) + kernel_init_free_pages(page, 1 << order); /* Propagate __GFP_SKIP_KASAN_POISON to page flags. */ if (kasan_hw_tags_enabled() && (gfp_flags & __GFP_SKIP_KASAN_POISON)) SetPageSkipKASanPoison(page);