From ea559e7b8451a35b6d36813dde52b415c72ceb03 Mon Sep 17 00:00:00 2001 From: Gao Xiang Date: Wed, 4 Sep 2019 10:08:57 +0800 Subject: [PATCH] erofs: update erofs_fs.h comments As Christoph said [1] [2], update it now. [1] https://lore.kernel.org/r/20190902124521.GA22153@infradead.org/ [2] https://lore.kernel.org/r/20190902120548.GB15931@infradead.org/ Reported-by: Christoph Hellwig Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20190904020912.63925-11-gaoxiang25@huawei.com Signed-off-by: Greg Kroah-Hartman --- fs/erofs/erofs_fs.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h index 18689e916e94..b1ee5654750d 100644 --- a/fs/erofs/erofs_fs.h +++ b/fs/erofs/erofs_fs.h @@ -1,5 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only OR Apache-2.0 */ /* + * EROFS (Enhanced ROM File System) on-disk format definition + * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang @@ -7,7 +9,6 @@ #ifndef __EROFS_FS_H #define __EROFS_FS_H -/* Enhanced(Extended) ROM File System */ #define EROFS_SUPER_OFFSET 1024 /* @@ -41,7 +42,7 @@ struct erofs_super_block { }; /* - * erofs inode datalayout: + * erofs inode datalayout (i_format in on-disk inode): * 0 - inode plain without inline data A: * inode, [xattrs], ... | ... | no-holed data * 1 - inode VLE compression B (legacy): @@ -187,7 +188,7 @@ static inline unsigned int erofs_xattr_entry_size(struct erofs_xattr_entry *e) e->e_name_len + le16_to_cpu(e->e_value_size)); } -/* available compression algorithm types */ +/* available compression algorithm types (for h_algorithmtype) */ enum { Z_EROFS_COMPRESSION_LZ4 = 0, Z_EROFS_COMPRESSION_MAX @@ -222,7 +223,7 @@ struct z_erofs_map_header { #define Z_EROFS_VLE_LEGACY_HEADER_PADDING 8 /* - * Z_EROFS Variable-sized Logical Extent cluster type: + * Fixed-sized output compression ondisk Logical Extent cluster type: * 0 - literal (uncompressed) cluster * 1 - compressed cluster (for the head logical cluster) * 2 - compressed cluster (for the other logical clusters)