On Sun, Jul 3, 2016 at 12:33 PM, Kai Krakow <hurikhan77@xxxxxxxxx> wrote: > Am Fri, 1 Jul 2016 22:14:00 +0200 > schrieb Dmitry Katsubo <dma_k@xxxxxxx>: > >> Hello everyone, >> >> Question #1: >> >> While doing defrag I got the following message: >> >> # btrfs fi defrag -r /home >> ERROR: defrag failed on /home/user/.dropbox-dist/dropbox: Success >> total 1 failures >> >> I feel that something went wrong, but the message is a bit misleading. >> >> Provided that Dropbox is running in the system, does it mean that it >> cannot be defagmented? > > That is probably true. Files that are mapped into memory (like running > executables) cannot be changed on disk. You could make a copy of that > file, remove the original, and rename the new into place. As long as > the executable is running it will stay on disk but you can now > defragment the file and next time dropbox is started it will use the > new one. I get: ERROR: cannot open ./dropbox: Text file busy when I run: btrfs fi defrag -v ./dropbox This is with kernel 4.6.2 and progs 4.6.1, dropbox running and mount option compress=lzo -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
