On Thu, May 29, 2014 at 12:26 PM, David Howells <dhowells@xxxxxxxxxx> wrote: > Miklos Szeredi <miklos@xxxxxxxxxx> wrote: > >> Perfect solution would be an invisible temp directory. This needs filesystem >> support, but perhaps not so difficult. Again could be done later without >> backward compatibility issues. > > Maybe make a tempfile and hardlink it into place when complete. That's what > unionmount is doing. That doesn't work with RENAME_EXCHANGE, which is what overlayfs uses. I think that's a small price to pay for not needing to add whiteout support to every single directory operation. We could also implement RENAME_EXCHANGE with a tmpfile, but then again, I think that may be too much complexity for too little gain. Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
