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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 D62B0C04AAF for ; Mon, 20 May 2019 09:26:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B65A9206BA for ; Mon, 20 May 2019 09:26:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732097AbfETJ0y (ORCPT ); Mon, 20 May 2019 05:26:54 -0400 Received: from mx2.suse.de ([195.135.220.15]:39732 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729642AbfETJ0u (ORCPT ); Mon, 20 May 2019 05:26:50 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C870CADAF; Mon, 20 May 2019 09:26:49 +0000 (UTC) From: Takashi Iwai To: Luis Chamberlain Cc: Greg Kroah-Hartman , "Rafael J . Wysocki" , linux-kernel@vger.kernel.org Subject: [PATCH 3/5] firmware: Use kvmalloc for page tables Date: Mon, 20 May 2019 11:26:45 +0200 Message-Id: <20190520092647.8622-4-tiwai@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190520092647.8622-1-tiwai@suse.de> References: <20190520092647.8622-1-tiwai@suse.de> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a minor optimization to use kvmalloc() variant for allocating the page table for the SG-buffer. They aren't so big in general, so kmalloc() would fit often better. Signed-off-by: Takashi Iwai --- drivers/base/firmware_loader/fallback.c | 7 ++++--- drivers/base/firmware_loader/main.c | 2 +- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c index 8970a5315e85..b5cd96fd0e77 100644 --- a/drivers/base/firmware_loader/fallback.c +++ b/drivers/base/firmware_loader/fallback.c @@ -232,7 +232,7 @@ static int map_fw_priv_pages(struct fw_priv *fw_priv) return -ENOMEM; /* page table is no longer needed after mapping, let's free */ - vfree(fw_priv->pages); + kvfree(fw_priv->pages); fw_priv->pages = NULL; return 0; @@ -397,7 +397,8 @@ static int fw_realloc_pages(struct fw_sysfs *fw_sysfs, int min_size) fw_priv->page_array_size * 2); struct page **new_pages; - new_pages = vmalloc(array_size(new_array_size, sizeof(void *))); + new_pages = kvmalloc_array(new_array_size, sizeof(void *), + GFP_KERNEL); if (!new_pages) { fw_load_abort(fw_sysfs); return -ENOMEM; @@ -406,7 +407,7 @@ static int fw_realloc_pages(struct fw_sysfs *fw_sysfs, int min_size) fw_priv->page_array_size * sizeof(void *)); memset(&new_pages[fw_priv->page_array_size], 0, sizeof(void *) * (new_array_size - fw_priv->page_array_size)); - vfree(fw_priv->pages); + kvfree(fw_priv->pages); fw_priv->pages = new_pages; fw_priv->page_array_size = new_array_size; } diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index 083fc3e4f2fd..2e74a1b73dae 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -276,7 +276,7 @@ void fw_free_paged_buf(struct fw_priv *fw_priv) for (i = 0; i < fw_priv->nr_pages; i++) __free_page(fw_priv->pages[i]); - vfree(fw_priv->pages); + kvfree(fw_priv->pages); fw_priv->pages = NULL; fw_priv->page_array_size = 0; fw_priv->nr_pages = 0; -- 2.16.4