share mode locks on directories
jra at samba.org
Tue Jul 31 23:59:39 GMT 2007
On Tue, Jul 31, 2007 at 01:51:19PM -0700, Tim Prouty wrote:
> Hi Jeremy,
> I was talking to Volker earlier today about share mode locks on
> directories, and he said that you may be able to answer some of my
> questions, since you wrote the most of this code. Do you have any
> examples of where it is important to take share mode lock on a
> directory? I'm looking at all of the callers of open_directory(),
> and so far the close_file() is called on the dir's fsp before the
> calling function returns. Is it purely for delete on close semantics?
Pretty much. We do have a codepath (not currently turned on
by default) that allows the correct semantics of preventing look-ups
in directories that have delete on close set.
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