[Ocfs2-devel] a puzzle about is_global_system_inode function

[Larry Chen]

Hi changwei, alex, and Joseph,

Really appreciate your help.

Thanks
Larry Chen

On 10/24/2017 9:16 PM, ge changwei wrote:
>
> On 24/10/2017 8:23 PM, Larry Chen wrote:
>> On 10/24/2017 7:04 PM, Joseph Qi wrote:
>>> GLOBAL_INODE_ALLOC_SYSTEM_INODE is used for system files inode
>>> allocation, you can refer to ocfs2-tools for details.
>> So it won't be used as an allocator after mkfs.ocfs2.  Is that true??
> Hi Larry,
> I think GLOBAL_INODE_ALLOC_SYSTEM_INODE system file is a reserved space
> for allocating inodes representing local allocater, etc.
>
> So there is no chance for us to modify it since it has no relation with
> file space allocation and declaim.
>
> So I suppose you are right, we won't use it anymore after mkfs until you
> have to tune it.
>
> Thanks，
> Changwei.
>
>> Thanks,
>> Larry Chen
>>
>>> Thanks,
>>> Joseph
>>>
>>> On 17/10/24 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
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