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https://gitee.com/openharmony/third_party_f2fs-tools
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603f8f9d36
This patch implements loading files into the existing partition. For example, # sload.f2fs -f ./ /dev/sdb1 Then, all the directories and files will be loaded into /dev/sdb1. By default, newly files should have inline_data and inline_xattr, if possible. Signed-off-by: Hou Pengyang <houpengyang@huawei.com> Signed-off-by: Liu Shuoran <liushuoran@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/**
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* xattr.h
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*
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* Many parts of codes are copied from Linux kernel/fs/f2fs.
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*
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* Copyright (C) 2015 Huawei Ltd.
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* Witten by:
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* Hou Pengyang <houpengyang@huawei.com>
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* Liu Shuoran <liushuoran@huawei.com>
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* Jaegeuk Kim <jaegeuk@kernel.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _XATTR_H_
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#define _XATTR_H_
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#include <f2fs_fs.h>
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#include "f2fs.h"
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struct f2fs_xattr_header {
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__le32 h_magic; /* magic number for identification */
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__le32 h_refcount; /* reference count */
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__u32 h_sloadd[4]; /* zero right now */
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};
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struct f2fs_xattr_entry {
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__u8 e_name_index;
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__u8 e_name_len;
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__le16 e_value_size; /* size of attribute value */
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char e_name[0]; /* attribute name */
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};
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#define XATTR_ROUND (3)
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#define XATTR_SELINUX_SUFFIX "selinux"
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#define F2FS_XATTR_INDEX_SECURITY 6
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#define IS_XATTR_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0)
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#define XATTR_HDR(ptr) ((struct f2fs_xattr_header *)(ptr))
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#define XATTR_ENTRY(ptr) ((struct f2fs_xattr_entry *)(ptr))
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#define F2FS_XATTR_MAGIC 0xF2F52011
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#define XATTR_NEXT_ENTRY(entry) ((struct f2fs_xattr_entry *) ((char *)(entry) +\
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ENTRY_SIZE(entry)))
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#define XATTR_FIRST_ENTRY(ptr) (XATTR_ENTRY(XATTR_HDR(ptr) + 1))
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#define XATTR_ALIGN(size) ((size + XATTR_ROUND) & ~XATTR_ROUND)
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#define ENTRY_SIZE(entry) (XATTR_ALIGN(sizeof(struct f2fs_xattr_entry) + \
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entry->e_name_len + le16_to_cpu(entry->e_value_size)))
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#define list_for_each_xattr(entry, addr) \
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for (entry = XATTR_FIRST_ENTRY(addr); \
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!IS_XATTR_LAST_ENTRY(entry); \
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entry = XATTR_NEXT_ENTRY(entry))
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#define MIN_OFFSET XATTR_ALIGN(PAGE_SIZE - \
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sizeof(struct node_footer) - sizeof(__u32))
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#define MAX_VALUE_LEN (MIN_OFFSET - \
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sizeof(struct f2fs_xattr_header) - \
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sizeof(struct f2fs_xattr_entry))
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#endif
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