[Ocfs2-devel] how can the [o2hb-x] kernel thread begin running in the ocfs2

[Ocfs2-devel] how can the [o2hb-x] kernel thread begin running in the ocfs2

[Zhangguanghui]

Hi


        While mounting -t ocfs2 , the function ocfs2_fill_super is triggered.

In the process, which specific function will trigger the callback of o2hb_region_dev_write,

how can the [o2hb-x] kernel thread begin running?

 thanks


-------------------------------------------------------------------------------------------------------------------------------------
??????????????????????????,?????????????
?????????????????????(??????????????????
???)?????????????????,??????????????????
??!
This e-mail and its attachments contain confidential information from H3C, which is
intended only for the person or entity whose address is listed above. Any use of the
information contained herein in any way (including, but not limited to, total or partial
disclosure, reproduction, or dissemination) by persons other than the intended
recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender
by phone or email immediately and delete it!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://oss.oracle.com/pipermail/ocfs2-devel/attachments/20141107/e64e0892/attachment.html 

[Ocfs2-devel] how can the [o2hb-x] kernel thread begin running in the ocfs2

[Xue jiufei]

Hi, 

Ocfs2 uses configfs to do user-space configuration tasks. When thread
mount.ocfs2 writes fd to /sys/kernel/config/cluster/{clustername}/heartbeat/{region_name}/dev,
kernel will trigger the callback. you can find the source code in
function o2cb_create_heartbeat_region() in ocfs2-tools package.

Thanks.
Xue Jiufei

On 2014/11/7 18:37, Zhangguanghui wrote:
> 
>     Hi
> 
> 
>             While mounting -t ocfs2 , the function ocfs2_fill_super is triggered.
> 
>     In the process, which specific function will trigger the callback of o2hb_region_dev_write,
> 
>     how can the [o2hb-x] kernel thread begin running?
> 
>      thanks
> 
> 
> -------------------------------------------------------------------------------------------------------------------------------------
> ????????????????????????????????????????
> ????????????????????????????????????????
> ????????????????????????????????????????
> ???
> This e-mail and its attachments contain confidential information from H3C, which is
> intended only for the person or entity whose address is listed above. Any use of the
> information contained herein in any way (including, but not limited to, total or partial
> disclosure, reproduction, or dissemination) by persons other than the intended
> recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender
> by phone or email immediately and delete it!
> 
> 
> _______________________________________________
> Ocfs2-devel mailing list
> Ocfs2-devel at oss.oracle.com
> https://oss.oracle.com/mailman/listinfo/ocfs2-devel
>