From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 199F4ECE599 for ; Wed, 16 Oct 2019 20:00:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C2A9E20854 for ; Wed, 16 Oct 2019 20:00:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b="DuqfqRWM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C2A9E20854 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=soleen.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7F57A8E000B; Wed, 16 Oct 2019 16:00:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 754588E0001; Wed, 16 Oct 2019 16:00:49 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5CE5D8E000B; Wed, 16 Oct 2019 16:00:49 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0229.hostedemail.com [216.40.44.229]) by kanga.kvack.org (Postfix) with ESMTP id 3541E8E0001 for ; Wed, 16 Oct 2019 16:00:49 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id ABB41942E for ; Wed, 16 Oct 2019 20:00:48 +0000 (UTC) X-FDA: 76050715776.24.wish82_6fd4fc3a2946 X-HE-Tag: wish82_6fd4fc3a2946 X-Filterd-Recvd-Size: 6342 Received: from mail-qk1-f193.google.com (mail-qk1-f193.google.com [209.85.222.193]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Wed, 16 Oct 2019 20:00:47 +0000 (UTC) Received: by mail-qk1-f193.google.com with SMTP id e66so3420130qkf.13 for ; Wed, 16 Oct 2019 13:00:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=MH284WpfdMmTT4sRM0t5AqX3XpYou6gu7tWPymm7DjQ=; b=DuqfqRWMPOvEPNM2SwMz7BaMdbSnbr2AOXFceodEDGBgvpTPxvzCCJRKO0XMXLWKTh p5mnTcTZu0KDFMwnKTHbaqAZXwXzW6PFYUveTxH/wBfPgzGiNCjn6GlWf+4Nvr1oufFO 6V5GE/32z3BR70juhuUHJ2Hz52ZWJMuLiPhG90YCqIEOJXq8wQx1xpZz76Bqv5Dcsx6P 6sZ/O1FIS2CgbuXRByzyFtw17uNhQjJiSkouOqEmo+3ol6GZE2Cc8gXwjti8Bt0HuDJd jNPp9QaZq6Kdh5YZ6MEpUQ5Sad/E+JSdbx+Q59PlgQop26kj0b3Bg5LY8JloRVaBAb+J YKdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MH284WpfdMmTT4sRM0t5AqX3XpYou6gu7tWPymm7DjQ=; b=CkZ0dNQvY0NELde5Vc1cGZw/xnZGTzbe+aIkwi05E+dFjb9yLGyjy2kvaihBJicgow HAc5FQs7UvL+EfrqHD5IZtPgp9Y4gobucJp1OrB9Y5Km5a1SvyZPXn04WFK3Mn5GFuub OZz9pYthQlkf6/pN+L7IaP9tvmcsHiCaVSLdGRPMr8EyjpYcEs3VN4cwtcpqtWOZzN4y +UfR2MachnjIbZi9Jiqde54wqC2HkTv+HFGMQdIp0u2lHY2JmzGTCrOQHtmVYesVsnLZ W4iuXbDHks1rgk5TzWSXs2ykhR/PwxODEmrR75/vG5WRQHK8ykqSAvjF0otU/FkKs3bI LeCg== X-Gm-Message-State: APjAAAWEb3jpPmiJH0gBg5CCF5G2AH2Eb8m/DHDpo/3m5V9tLh+RREo4 kRrYxnIKb8OkRwOcjgW4GGzmCQ== X-Google-Smtp-Source: APXvYqwQfg+AMEijbvYInDKw1rQxmB6TO6d7tt0LCd8e4XMQCW2+/wCpDuDVQi3KUQIh6WJn1VFpNg== X-Received: by 2002:a37:c40d:: with SMTP id d13mr6599119qki.371.1571256047252; Wed, 16 Oct 2019 13:00:47 -0700 (PDT) Received: from localhost.localdomain (c-73-69-118-222.hsd1.nh.comcast.net. [73.69.118.222]) by smtp.gmail.com with ESMTPSA id c204sm13342030qkb.90.2019.10.16.13.00.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Oct 2019 13:00:46 -0700 (PDT) From: Pavel Tatashin To: pasha.tatashin@soleen.com, jmorris@namei.org, sashal@kernel.org, ebiederm@xmission.com, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, corbet@lwn.net, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com, james.morse@arm.com, vladimir.murzin@arm.com, matthias.bgg@gmail.com, bhsharma@redhat.com, linux-mm@kvack.org, mark.rutland@arm.com, steve.capper@arm.com, rfontana@redhat.com, tglx@linutronix.de Subject: [PATCH v7 06/25] arm64: hibernate: use get_safe_page directly Date: Wed, 16 Oct 2019 16:00:15 -0400 Message-Id: <20191016200034.1342308-7-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191016200034.1342308-1-pasha.tatashin@soleen.com> References: <20191016200034.1342308-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: create_safe_exec_page() uses hibernate's allocator to create a set of pag= e table to map a single page that will contain the relocation code. Remove the allocator related arguments, and use get_safe_page directly, a= s it is done in other local functions in this file to simplify function prototype. Removing this function pointer makes it easier to refactor the code later= . Signed-off-by: Pavel Tatashin Reviewed-by: Matthias Brugger --- arch/arm64/kernel/hibernate.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.= c index ef46ce66d7e8..34297716643f 100644 --- a/arch/arm64/kernel/hibernate.c +++ b/arch/arm64/kernel/hibernate.c @@ -196,9 +196,7 @@ EXPORT_SYMBOL(arch_hibernation_header_restore); */ static int create_safe_exec_page(void *src_start, size_t length, unsigned long dst_addr, - phys_addr_t *phys_dst_addr, - void *(*allocator)(gfp_t mask), - gfp_t mask) + phys_addr_t *phys_dst_addr) { int rc =3D 0; pgd_t *trans_pgd; @@ -206,7 +204,7 @@ static int create_safe_exec_page(void *src_start, siz= e_t length, pud_t *pudp; pmd_t *pmdp; pte_t *ptep; - unsigned long dst =3D (unsigned long)allocator(mask); + unsigned long dst =3D get_safe_page(GFP_ATOMIC); =20 if (!dst) { rc =3D -ENOMEM; @@ -216,7 +214,7 @@ static int create_safe_exec_page(void *src_start, siz= e_t length, memcpy((void *)dst, src_start, length); __flush_icache_range(dst, dst + length); =20 - trans_pgd =3D allocator(mask); + trans_pgd =3D (void *)get_safe_page(GFP_ATOMIC); if (!trans_pgd) { rc =3D -ENOMEM; goto out; @@ -224,7 +222,7 @@ static int create_safe_exec_page(void *src_start, siz= e_t length, =20 pgdp =3D pgd_offset_raw(trans_pgd, dst_addr); if (pgd_none(READ_ONCE(*pgdp))) { - pudp =3D allocator(mask); + pudp =3D (void *)get_safe_page(GFP_ATOMIC); if (!pudp) { rc =3D -ENOMEM; goto out; @@ -234,7 +232,7 @@ static int create_safe_exec_page(void *src_start, siz= e_t length, =20 pudp =3D pud_offset(pgdp, dst_addr); if (pud_none(READ_ONCE(*pudp))) { - pmdp =3D allocator(mask); + pmdp =3D (void *)get_safe_page(GFP_ATOMIC); if (!pmdp) { rc =3D -ENOMEM; goto out; @@ -244,7 +242,7 @@ static int create_safe_exec_page(void *src_start, siz= e_t length, =20 pmdp =3D pmd_offset(pudp, dst_addr); if (pmd_none(READ_ONCE(*pmdp))) { - ptep =3D allocator(mask); + ptep =3D (void *)get_safe_page(GFP_ATOMIC); if (!ptep) { rc =3D -ENOMEM; goto out; @@ -530,8 +528,7 @@ int swsusp_arch_resume(void) */ rc =3D create_safe_exec_page(__hibernate_exit_text_start, exit_size, (unsigned long)hibernate_exit, - &phys_hibernate_exit, - (void *)get_safe_page, GFP_ATOMIC); + &phys_hibernate_exit); if (rc) { pr_err("Failed to create safe executable page for hibernate_exit code.= \n"); goto out; --=20 2.23.0