From mboxrd@z Thu Jan 1 00:00:00 1970 From: chao@kernel.org (Chao Yu) Date: Sun, 12 Aug 2018 22:01:47 +0800 Subject: [PATCH 5/8] staging: erofs: rearrange vle clustertype definitions In-Reply-To: <20180812140150.13397-1-chao@kernel.org> References: <20180812140150.13397-1-chao@kernel.org> Message-ID: <20180812140150.13397-6-chao@kernel.org> From: Gao Xiang This patch moves vle clustertype definitions to erofs_fs.h since they are part of on-disk format. It also adds compile time check for Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS Signed-off-by: Gao Xiang Reviewed-by: Chao Yu Signed-off-by: Chao Yu --- drivers/staging/erofs/erofs_fs.h | 11 +++++++++++ drivers/staging/erofs/unzip_vle.c | 8 -------- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/staging/erofs/erofs_fs.h b/drivers/staging/erofs/erofs_fs.h index 2f8e2bf70941..d4bffa2852b3 100644 --- a/drivers/staging/erofs/erofs_fs.h +++ b/drivers/staging/erofs/erofs_fs.h @@ -202,6 +202,14 @@ struct erofs_extent_header { * di_u.delta[1] = distance to its corresponding tail cluster * (di_advise could be 0, 1 or 2) */ +enum { + Z_EROFS_VLE_CLUSTER_TYPE_PLAIN, + Z_EROFS_VLE_CLUSTER_TYPE_HEAD, + Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD, + Z_EROFS_VLE_CLUSTER_TYPE_RESERVED, + Z_EROFS_VLE_CLUSTER_TYPE_MAX +}; + #define Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS 2 #define Z_EROFS_VLE_DI_CLUSTER_TYPE_BIT 0 @@ -260,6 +268,9 @@ static inline void erofs_check_ondisk_layout_definitions(void) BUILD_BUG_ON(sizeof(struct erofs_extent_header) != 16); BUILD_BUG_ON(sizeof(struct z_erofs_vle_decompressed_index) != 8); BUILD_BUG_ON(sizeof(struct erofs_dirent) != 12); + + BUILD_BUG_ON(BIT(Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS) < + Z_EROFS_VLE_CLUSTER_TYPE_MAX - 1); } #endif diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c index 5032b3b05de1..f597f079d579 100644 --- a/drivers/staging/erofs/unzip_vle.c +++ b/drivers/staging/erofs/unzip_vle.c @@ -1416,14 +1416,6 @@ const struct address_space_operations z_erofs_vle_normalaccess_aops = { #define __vle_cluster_type(advise) __vle_cluster_advise(advise, \ Z_EROFS_VLE_DI_CLUSTER_TYPE_BIT, Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS) -enum { - Z_EROFS_VLE_CLUSTER_TYPE_PLAIN, - Z_EROFS_VLE_CLUSTER_TYPE_HEAD, - Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD, - Z_EROFS_VLE_CLUSTER_TYPE_RESERVED, - Z_EROFS_VLE_CLUSTER_TYPE_MAX -}; - #define vle_cluster_type(di) \ __vle_cluster_type((di)->di_advise) -- 2.18.0 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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,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 56742C46473 for ; Sun, 12 Aug 2018 14:02:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0FDEB21A2A for ; Sun, 12 Aug 2018 14:02:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="tRQkPH5H" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0FDEB21A2A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728326AbeHLQky (ORCPT ); Sun, 12 Aug 2018 12:40:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:59088 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727801AbeHLQkx (ORCPT ); Sun, 12 Aug 2018 12:40:53 -0400 Received: from localhost.localdomain (unknown [58.212.144.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0A20921A05; Sun, 12 Aug 2018 14:02:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1534082564; bh=ynntHqTITRSrvXp4Z1a2UTgjlXGsTsgZ5MDcgXcKdyA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tRQkPH5HSsr8A/KA3IdRInBS9DEUvwD0SCyXyWpM2oEcESWYZGcewCz6PAc+MgIE6 ADsaMAKssRDMxVO9rP4xtEvRyRnSKGxKr/W90ORiK3UK12BeDxv69I+DtH81mEXu4n 90uKDnOhvyHZ9qKeJMdjcMIJ4dTu3bZUHJv2JImg= From: Chao Yu To: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org Cc: linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org, Gao Xiang , Chao Yu Subject: [PATCH 5/8] staging: erofs: rearrange vle clustertype definitions Date: Sun, 12 Aug 2018 22:01:47 +0800 Message-Id: <20180812140150.13397-6-chao@kernel.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180812140150.13397-1-chao@kernel.org> References: <20180812140150.13397-1-chao@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gao Xiang This patch moves vle clustertype definitions to erofs_fs.h since they are part of on-disk format. It also adds compile time check for Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS Signed-off-by: Gao Xiang Reviewed-by: Chao Yu Signed-off-by: Chao Yu --- drivers/staging/erofs/erofs_fs.h | 11 +++++++++++ drivers/staging/erofs/unzip_vle.c | 8 -------- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/staging/erofs/erofs_fs.h b/drivers/staging/erofs/erofs_fs.h index 2f8e2bf70941..d4bffa2852b3 100644 --- a/drivers/staging/erofs/erofs_fs.h +++ b/drivers/staging/erofs/erofs_fs.h @@ -202,6 +202,14 @@ struct erofs_extent_header { * di_u.delta[1] = distance to its corresponding tail cluster * (di_advise could be 0, 1 or 2) */ +enum { + Z_EROFS_VLE_CLUSTER_TYPE_PLAIN, + Z_EROFS_VLE_CLUSTER_TYPE_HEAD, + Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD, + Z_EROFS_VLE_CLUSTER_TYPE_RESERVED, + Z_EROFS_VLE_CLUSTER_TYPE_MAX +}; + #define Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS 2 #define Z_EROFS_VLE_DI_CLUSTER_TYPE_BIT 0 @@ -260,6 +268,9 @@ static inline void erofs_check_ondisk_layout_definitions(void) BUILD_BUG_ON(sizeof(struct erofs_extent_header) != 16); BUILD_BUG_ON(sizeof(struct z_erofs_vle_decompressed_index) != 8); BUILD_BUG_ON(sizeof(struct erofs_dirent) != 12); + + BUILD_BUG_ON(BIT(Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS) < + Z_EROFS_VLE_CLUSTER_TYPE_MAX - 1); } #endif diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c index 5032b3b05de1..f597f079d579 100644 --- a/drivers/staging/erofs/unzip_vle.c +++ b/drivers/staging/erofs/unzip_vle.c @@ -1416,14 +1416,6 @@ const struct address_space_operations z_erofs_vle_normalaccess_aops = { #define __vle_cluster_type(advise) __vle_cluster_advise(advise, \ Z_EROFS_VLE_DI_CLUSTER_TYPE_BIT, Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS) -enum { - Z_EROFS_VLE_CLUSTER_TYPE_PLAIN, - Z_EROFS_VLE_CLUSTER_TYPE_HEAD, - Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD, - Z_EROFS_VLE_CLUSTER_TYPE_RESERVED, - Z_EROFS_VLE_CLUSTER_TYPE_MAX -}; - #define vle_cluster_type(di) \ __vle_cluster_type((di)->di_advise) -- 2.18.0