Re: Thoughts about cache consistency and directories in particular.

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On Thu, 2009-04-23 at 17:34 -0400, J. Bruce Fields wrote:
> On Tue, Apr 21, 2009 at 05:43:49PM -0400, bfields wrote:
> > Actually, I did this and then realized: I'm using IS_I_VERSION(inode) to
> > turn on use of the i_version as the change attribute on both files and
> > directories.  But it actually only makes a difference for files.
> > 
> > So I guess I should just be using i_version as the change attribute
> > unconditionally for directories?  (Will that work on any filesystem?)
> 
> I'm still curious about this.

Few of the common filesystems actually store dir->i_version on permanent
storage, and none of the ramfs type filesystems appear to set
dir->i_version at all.

Cheers
  Trond

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