[LSF/MM TOPIC] Online filesystem check framework

[Goldwyn Rodrigues <rgoldwyn@suse.de>]

Topic: Generic Online filesystem Check framework

Motivation:
  + Better uptime - Filesystems turn read-only at the first error 
encountered and it may block critical applications which have not 
encountered the error.
  + Unmountable Filesystems - Some filesystems such as clustered 
filesystem may not be unmountable because they are used by too many 
computers to be taken offline.
  + Autofix - may sound dangerous as fixing is without user 
intervention, but an option may help admins which are looking for a good 
uptime.
  + Logic inbuilt - most logic of access to filesystem is already in the 
filesystem driver. The fix/check would make use of existing functionality.


Framework would be around providing a generic interface framework which 
would use inode numbers as the basic unit to check or fix. Other 
metadata may need special parameters. Userspace scripts will issue 
check/fixes to the system, which may/may not be driven by

My other interests include VFS, access control and security, and future 
plans with the VFS and storage subsystems.
I am also interested in multi-device arrays such as MD and DM.

-- 
Goldwyn