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From: alex chen <alex.chen@huawei.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] a puzzle about is_global_system_inode function
Date: Tue, 24 Oct 2017 20:35:10 +0800	[thread overview]
Message-ID: <59EF337E.3040809@huawei.com> (raw)
In-Reply-To: <2061999c-f11b-b50d-55e4-09c847a5f25d@suse.com>

Hi Larry Chen,

I think the reason is because the GLOBAL_INODE_ALLOC_SYSTEM_INODE
is just used when the device is offline, such as used in mkfs.ocfs2
and tunefs.ocfs2, it is not needed when the device is online.

Thanks
Alex

On 2017/10/24 18:39, Larry Chen wrote:
> Hi all,
> 
> Function is_global_system_inode checks whether the type is
> in the range [OCFS2_FIRST_ONLINE_SYSTEM_INODE , 
> OCFS2_LAST_GLOBAL_SYSTEM_INODE ].
> But why the range does not include GLOBAL_INODE_ALLOC_SYSTEM_INODE ??
> 
> enum {
>        ....
>         GLOBAL_INODE_ALLOC_SYSTEM_INODE,
>          SLOT_MAP_SYSTEM_INODE,
> #define OCFS2_FIRST_ONLINE_SYSTEM_INODE SLOT_MAP_SYSTEM_INODE
>          HEARTBEAT_SYSTEM_INODE,
>          GLOBAL_BITMAP_SYSTEM_INODE,
>          USER_QUOTA_SYSTEM_INODE,
>          GROUP_QUOTA_SYSTEM_INODE,
> #define OCFS2_LAST_GLOBAL_SYSTEM_INODE GROUP_QUOTA_SYSTEM_INODE
>      ....
> }
> 
> Thanks
> Larry Chen
> _______________________________________________
> Ocfs2-devel mailing list
> Ocfs2-devel at oss.oracle.com
> https://oss.oracle.com/mailman/listinfo/ocfs2-devel
> 

      parent reply	other threads:[~2017-10-24 12:35 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-24 10:39 [Ocfs2-devel] a puzzle about is_global_system_inode function Larry Chen
2017-10-24 11:04 ` Joseph Qi
2017-10-24 12:23   ` Larry Chen
2017-10-24 13:16     ` ge changwei
2017-10-25  2:08       ` Larry Chen
2017-10-24 12:35 ` alex chen [this message]

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