Well, recursive configuration is a misfeature of git. No sane program should work that way. But regardless, if git scans every sub directory then the kernel sho

Well, recursive configuration is a misfeature of git. No sane program should work that way. But regardless, if git scans every sub directory then the kernel should have already cached all "positive" dentries obviating the need for any negative ones. And that cache must be an order of magnitude larger than any negative cache.