Ocfs2 devel - Nov 2014 - how can the [o2hb-x] kernel thread begin running in the ocfs2

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


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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!
> 
> 
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