[PATCH 09/11] sysfs: add sysfs_ns_exit routine

[Eric W. Biederman]

Benjamin Thery <benjamin.thery at bull.net> writes:

> Add sysfs routine sysfs_ns_exit() to allow a namespace to go away while
> sysfs is still mounted. 
>
> The exiting namespace calls this routine and pass it a callback to be 
> called for every sysfs superblocks present. The callback contains the 
> necessary code to clean the superblock tag data associated with this 
> namespace.

My apologies for not looking at this earlier.  This is a nice cleanup.
Thank you.

Eric