* [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file
@ 2016-10-09 8:47 Gang He
2016-10-09 9:00 ` Junxiao Bi
2016-10-09 10:33 ` Joseph Qi
0 siblings, 2 replies; 4+ messages in thread
From: Gang He @ 2016-10-09 8:47 UTC (permalink / raw)
To: ocfs2-devel
Hello Guys,
If you use debugfs.ocfs2 to list system files for a ocfs2 file system, you can find these two system files.
sles12sp1-node1:/ # debugfs.ocfs2 /dev/sdb1
debugfs.ocfs2 1.8.2
debugfs: ls //
6 16 1 2 .
6 16 2 2 ..
7 24 10 1 bad_blocks << == BAD_BLOCK_SYSTEM_INODE
8 32 18 1 global_inode_alloc << == GLOBAL_INODE_ALLOC_SYSTEM_INODE
....
But, What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file?
For BAD_BLOCK_SYSTEM_INODE system file, it looks to be used to store bad blocks for a file system partition, but from the code, there is not any code for this system file.
For GLOBAL_INODE_ALLOC_SYSTEM_INODE system file, there is also not any code for it, what is the purpose of this file ?
Thanks
Gang
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file
2016-10-09 8:47 [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file Gang He
@ 2016-10-09 9:00 ` Junxiao Bi
2016-10-09 10:33 ` Joseph Qi
1 sibling, 0 replies; 4+ messages in thread
From: Junxiao Bi @ 2016-10-09 9:00 UTC (permalink / raw)
To: ocfs2-devel
On 10/09/2016 04:47 PM, Gang He wrote:
> Hello Guys,
>
> If you use debugfs.ocfs2 to list system files for a ocfs2 file system, you can find these two system files.
> sles12sp1-node1:/ # debugfs.ocfs2 /dev/sdb1
> debugfs.ocfs2 1.8.2
> debugfs: ls //
> 6 16 1 2 .
> 6 16 2 2 ..
> 7 24 10 1 bad_blocks << == BAD_BLOCK_SYSTEM_INODE
> 8 32 18 1 global_inode_alloc << == GLOBAL_INODE_ALLOC_SYSTEM_INODE
> ....
>
> But, What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file?
> For BAD_BLOCK_SYSTEM_INODE system file, it looks to be used to store bad blocks for a file system partition, but from the code, there is not any code for this system file.
> For GLOBAL_INODE_ALLOC_SYSTEM_INODE system file, there is also not any code for it, what is the purpose of this file ?
These two are not used. Maybe left for future extend.
Thanks,
Junxiao.
>
>
> Thanks
> Gang
>
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file
2016-10-09 8:47 [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file Gang He
2016-10-09 9:00 ` Junxiao Bi
@ 2016-10-09 10:33 ` Joseph Qi
2016-10-10 1:51 ` Gang He
1 sibling, 1 reply; 4+ messages in thread
From: Joseph Qi @ 2016-10-09 10:33 UTC (permalink / raw)
To: ocfs2-devel
Hi Gang,
GLOBAL_INODE_ALLOC_SYSTEM_INODE is used for system file inodes
allocation, you can refer mkfs.c for details.
Thanks,
Joseph
On 2016/10/9 16:47, Gang He wrote:
> Hello Guys,
>
> If you use debugfs.ocfs2 to list system files for a ocfs2 file system, you can find these two system files.
> sles12sp1-node1:/ # debugfs.ocfs2 /dev/sdb1
> debugfs.ocfs2 1.8.2
> debugfs: ls //
> 6 16 1 2 .
> 6 16 2 2 ..
> 7 24 10 1 bad_blocks << == BAD_BLOCK_SYSTEM_INODE
> 8 32 18 1 global_inode_alloc << == GLOBAL_INODE_ALLOC_SYSTEM_INODE
> ....
>
> But, What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file?
> For BAD_BLOCK_SYSTEM_INODE system file, it looks to be used to store bad blocks for a file system partition, but from the code, there is not any code for this system file.
> For GLOBAL_INODE_ALLOC_SYSTEM_INODE system file, there is also not any code for it, what is the purpose of this file ?
>
>
> Thanks
> Gang
>
>
>
>
>
> .
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file
2016-10-09 10:33 ` Joseph Qi
@ 2016-10-10 1:51 ` Gang He
0 siblings, 0 replies; 4+ messages in thread
From: Gang He @ 2016-10-10 1:51 UTC (permalink / raw)
To: ocfs2-devel
Hello Junxiao and Joseph,
Thank for your confirm.
-Gang
>>>
> Hi Gang,
> GLOBAL_INODE_ALLOC_SYSTEM_INODE is used for system file inodes
> allocation, you can refer mkfs.c for details.
>
> Thanks,
> Joseph
>
> On 2016/10/9 16:47, Gang He wrote:
>> Hello Guys,
>>
>> If you use debugfs.ocfs2 to list system files for a ocfs2 file system, you
> can find these two system files.
>> sles12sp1-node1:/ # debugfs.ocfs2 /dev/sdb1
>> debugfs.ocfs2 1.8.2
>> debugfs: ls //
>> 6 16 1 2 .
>> 6 16 2 2 ..
>> 7 24 10 1 bad_blocks << ==
> BAD_BLOCK_SYSTEM_INODE
>> 8 32 18 1 global_inode_alloc << ==
> GLOBAL_INODE_ALLOC_SYSTEM_INODE
>> ....
>>
>> But, What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and
> BAD_BLOCK_SYSTEM_INODE system file?
>> For BAD_BLOCK_SYSTEM_INODE system file, it looks to be used to store bad
> blocks for a file system partition, but from the code, there is not any code
> for this system file.
>> For GLOBAL_INODE_ALLOC_SYSTEM_INODE system file, there is also not any code
> for it, what is the purpose of this file ?
>>
>>
>> Thanks
>> Gang
>>
>>
>>
>>
>>
>> .
>>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-10-10 1:51 UTC | newest]
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2016-10-09 8:47 [Ocfs2-devel] What are the purposes of GLOBAL_INODE_ALLOC_SYSTEM_INODE and BAD_BLOCK_SYSTEM_INODE system file Gang He
2016-10-09 9:00 ` Junxiao Bi
2016-10-09 10:33 ` Joseph Qi
2016-10-10 1:51 ` Gang He
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