From: Zheng Liu Subject: [PATCH 07/32] libext2fs: add data structures for inline data feature Date: Mon, 16 Apr 2012 19:39:42 +0800 Message-ID: <1334576407-4007-8-git-send-email-wenqing.lz@taobao.com> References: <1334576407-4007-1-git-send-email-wenqing.lz@taobao.com> Cc: Zheng Liu To: linux-ext4@vger.kernel.org Return-path: Received: from mail-pz0-f52.google.com ([209.85.210.52]:62902 "EHLO mail-pz0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753145Ab2DPLeE (ORCPT ); Mon, 16 Apr 2012 07:34:04 -0400 Received: by mail-pz0-f52.google.com with SMTP id e40so6801134dak.11 for ; Mon, 16 Apr 2012 04:34:04 -0700 (PDT) In-Reply-To: <1334576407-4007-1-git-send-email-wenqing.lz@taobao.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: From: Zheng Liu Add ext2_ext_attr_ibody_heaer to check extend attribute. Add inline_data to indicate the position of inline data in extend attribute and the size of inline data. Signed-off-by: Zheng Liu --- lib/ext2fs/ext2_ext_attr.h | 4 ++++ lib/ext2fs/ext2_fs.h | 7 +++++++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/lib/ext2fs/ext2_ext_attr.h b/lib/ext2fs/ext2_ext_attr.h index ed548d1..78ef7fc 100644 --- a/lib/ext2fs/ext2_ext_attr.h +++ b/lib/ext2fs/ext2_ext_attr.h @@ -23,6 +23,10 @@ struct ext2_ext_attr_header { __u32 h_reserved[4]; /* zero right now */ }; +struct ext2_ext_attr_ibody_header { + __u32 h_magic; +}; + struct ext2_ext_attr_entry { __u8 e_name_len; /* length of name */ __u8 e_name_index; /* attribute name index */ diff --git a/lib/ext2fs/ext2_fs.h b/lib/ext2fs/ext2_fs.h index 0f0239b..4a275d9 100644 --- a/lib/ext2fs/ext2_fs.h +++ b/lib/ext2fs/ext2_fs.h @@ -855,4 +855,11 @@ struct mmp_struct { */ #define EXT4_MMP_MIN_CHECK_INTERVAL 5 +struct inline_data { + __u16 inline_off; + __u16 inline_size; +}; + +#define EXT4_MIN_INLINE_DATA_SIZE ((sizeof(__u32) * EXT2_N_BLOCKS)) + #endif /* _LINUX_EXT2_FS_H */ -- 1.7.4.1