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 DF56CC04AB4 for ; Thu, 16 May 2019 08:48:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B363C205C9 for ; Thu, 16 May 2019 08:48:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727005AbfEPIsG (ORCPT ); Thu, 16 May 2019 04:48:06 -0400 Received: from mx2.suse.de ([195.135.220.15]:32944 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726352AbfEPIsG (ORCPT ); Thu, 16 May 2019 04:48:06 -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 96398AEE6; Thu, 16 May 2019 08:48:05 +0000 (UTC) From: Johannes Thumshirn To: David Sterba Cc: Linux BTRFS Mailinglist , Chris Mason , Richard Weinberger , David Gstir , Nikolay Borisov , Johannes Thumshirn Subject: [PATCH v2 03/13] btrfs: use btrfs_crc32c{,_final}() in for free space cache Date: Thu, 16 May 2019 10:47:53 +0200 Message-Id: <20190516084803.9774-4-jthumshirn@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190516084803.9774-1-jthumshirn@suse.de> References: <20190516084803.9774-1-jthumshirn@suse.de> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The CRC checksum in the free space cache is not dependant on the super block's csum_type field but always a CRC32C. So use btrfs_crc32c() and btrfs_crc32c_final() instead of btrfs_csum_data() and btrfs_csum_final() for computing these checksums. Signed-off-by: Johannes Thumshirn Reviewed-by: Nikolay Borisov --- fs/btrfs/free-space-cache.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index f74dc259307b..26ed8ed60722 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -465,9 +465,8 @@ static void io_ctl_set_crc(struct btrfs_io_ctl *io_ctl, int index) if (index == 0) offset = sizeof(u32) * io_ctl->num_pages; - crc = btrfs_csum_data(io_ctl->orig + offset, crc, - PAGE_SIZE - offset); - btrfs_csum_final(crc, (u8 *)&crc); + crc = btrfs_crc32c(crc, io_ctl->orig + offset, PAGE_SIZE - offset); + btrfs_crc32c_final(crc, (u8 *)&crc); io_ctl_unmap_page(io_ctl); tmp = page_address(io_ctl->pages[0]); tmp += index; @@ -493,9 +492,8 @@ static int io_ctl_check_crc(struct btrfs_io_ctl *io_ctl, int index) val = *tmp; io_ctl_map_page(io_ctl, 0); - crc = btrfs_csum_data(io_ctl->orig + offset, crc, - PAGE_SIZE - offset); - btrfs_csum_final(crc, (u8 *)&crc); + crc = btrfs_crc32c(crc, io_ctl->orig + offset, PAGE_SIZE - offset); + btrfs_crc32c_final(crc, (u8 *)&crc); if (val != crc) { btrfs_err_rl(io_ctl->fs_info, "csum mismatch on free space cache"); -- 2.16.4