On Wed, 7 May 2008, David Kastrup wrote:
quoted text
> 
> Hi, I have some large git repositories on a USB drive (ext3 file
> system).  That means that when replugging the drive, the recorded st_dev
> data in the index is off, meaning that the whole repo directory
> structure gets reread as the stat data of all directories has changed.
> 
> That's a nuisance.  Can't we have some heuristic or configuration option
> where we, say, record the st_dev of the _index_ file, and if that has
> changed, we propagate that change to the st_dev of its contents?  I'd
> like to see something that works more efficiently than rescanning the
> whole disk every time I hibernate my computer.

Hmm. We shouldn't even be using st_dev any more.

How did you compile your git version? By default USE_STDEV should be off, 
and it's been that way for a long time (because st_dev is also not 
reliable on NFS etc).

		Linus
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