On Fri, Jun 15, 2012 at 12:56:49PM +0300, Andrei Popa wrote: > In btrfs if we mount with "compress" we have no way to disable > compressing by remounting > (mount -o remount /mnt/btrfs), only by unmounting and mounting without > "compress". > This patch adds "nocompress" mount option which can be used to remount > the filesystem without compression: > # mount -o remount,nocompress /mnt/btrfs > This option is usefull in cases when we have a filesystem mounted with > "compress" and we want to disable compression but we don't want to > umount and mount it. Arnd Hannemann sent a patch for this http://lkml.indiana.edu/hypermail/linux/kernel/1204.2/00231.html that takes a different approach: setting compression to '=no' disables compression. I prefer this over adding an extra option to disable. This way there's no confusion if the compression is on or off. mount -o compress,nocompress /dev /mnt Is it on or off? Yeah we can document that nocompress has higher priority. But then I can't turn a nocompress option back to compress via remount. This is possible with Arnd's patch. david -- 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
