commit d2dcd9083f101584e029cbd4f0e1a4e573170d43
author Prasad Joshi <prasadjoshi.linux@gmail.com> Fri Mar 09 06:27:12 2012 +0530
committer Prasad Joshi <prasadjoshi.linux@gmail.com> Mon Apr 02 09:20:33 2012 +0530
tree 1b64355958937bd425901f950342be58fa2a6286
parent dd775ae2549217d3ae09363e3edb305d0fa19928

logfs: destroy the reserved inodes while unmounting

We were assuming that the evict_inode() would never be called on
reserved inodes. However, (after the commit 8e22c1a4e logfs: get rid
of magical inodes) while unmounting the file system, in put_super, we
call iput() on all of the reserved inodes.

The following simple test used to cause a kernel panic on LogFS:

1. Mount a LogFS file system on /mnt

2. Create a file
   $ touch /mnt/a

3. Try to unmount the FS
   $ umount /mnt

The simple fix would be to drop the assumption and properly destroy
the reserved inodes.

Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>