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Re: locking patches for ufs_rename

On Wed, Oct 07, 2009 at 08:01:54PM +0200, Alan Barrett wrote:
> On Wed, 07 Oct 2009, David Holland wrote:
> > On what workload? What real workload has a large number of concurrent
> > renames?
> I often have simultaneous rsyncs running on a few large but disjoint
> trees in the same file system.  rsync's usual mode of operation is
> to create a temporary file in the target directory and then rename
> it.
> Would it make sense to use a global lock only for cross-directory
> renames, and not for in-directory renames?

Yes. For in-directory renames, we can just hold the directory lock the 
whole time and that will lock others out.

Take care,


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