Commit ea559e7b authored by Gao Xiang's avatar Gao Xiang Committed by Greg Kroah-Hartman
Browse files

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: default avatarChristoph Hellwig <hch@infradead.org>
Signed-off-by: default avatarGao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-11-gaoxiang25@huawei.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a5876e24

fs/erofs/erofs_fs.h

+5 −4
Original line number Diff line number Diff line 
/* 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 <gaoxiang25@huawei.com>
@@ -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)

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