cwillu wrote: > On Wed, Nov 17, 2010 at 8:08 PM, Li Zefan <[email protected]> wrote: >> Hi Chris, >> >> Here's the updated patchset. As I still haven't got a kernel.org >> account, I have set up a git tree in another public git repository, >> and I'll use it for now. >> >> You can pull from: >> >> git://repo.or.cz/linux-btrfs-devel.git lzo-support >> >> >> Lzo is a much faster compression algorithm than gzib, so would allow >> more users to enable transparent compression, and some users can >> choose from compression ratio and compression speed. >> >> Usage: >> >> # mount -t btrfs -o compress[=<zlib,lzo>] dev /mnt >> or >> # mount -t btrfs -o compress-force[=<zlib,lzo>] dev /mnt >> >> "-o compress" without argument is still allowed for compatability. > > This doesn't seem to work with -o remount. "mount / -o > remount,compress=lzo" fails with "[90192.345382] btrfs: unrecognized > mount option 'compress=lzo'". The -clzo option to defrag works fine. >
It works for me: # mount -t btrfs -o compress=zlib /dev/loop1 /mnt # mount -o remount,compress=lzo /dev/loop1 /mnt # dmesg ... device fsid c142fef10429f78f-540f99158993f7a2 devid 1 transid 31 /dev/loop1 btrfs: use zlib compression btrfs: use lzo compression -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
