[Diskfilemon-commits] SF.net SVN: diskfilemon:[40] trunk/debugfs_stats.c

[<ste...@us...>]

Revision: 40
          http://diskfilemon.svn.sourceforge.net/diskfilemon/?rev=40&view=rev
Author:   steved62
Date:     2009-10-28 22:32:37 +0000 (Wed, 28 Oct 2009)

Log Message:
-----------
Fix a problem where ext2 file systems won't unmount after DFM has 
monitored files on them.  The suspicion is that the alias dentries are 
left with their ref counts incremented.  The file system export function 
that gets the dentry for an inode returns a dentry with its ref count 
incremented.  DFM never decremented the ref count.
There are two pieces to this fix.
1) Always call the file system's export function to get a dentry for an 
inode.  The file system knows if it can reutrn an existing dentry or if 
it has to create an alias.  We don't need to figure that out ourselves.
2) Always call dput() on the dentry to decrement the ref count after we
have finished using the dentry to build the full file name.

Modified Paths:
--------------
    trunk/debugfs_stats.c


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