> When the FS is mounted with compress: > > ~# mkfs.btrfs ./a > nodesize 4096 leafsize 4096 sectorsize 4096 size 2.00GB > ~# mount -o compress ./a /mnt/1 > ~# cd /mnt/1 > /mnt/1# yes | head -c400M > a > /mnt/1# sync > /mnt/1# df -h . > Filesystem Size Used Avail Use% Mounted on > /dev/loop1 2.0G 14M 1.8G 1% /mnt/1 > /mnt/1# btrfs fi defrag -c ./a > (20)/mnt/1# sync > /mnt/1# df -h . > Filesystem Size Used Avail Use% Mounted on > /dev/loop1 2.0G 21M 1.4G 2% /mnt/1 > > Lost 400M? > > /mnt/1# btrfs fi defrag ./a > (20)/mnt/1# sync > /mnt/1# df -h . > Filesystem Size Used Avail Use% Mounted on > /dev/loop1 2.0G 21M 1.4G 2% /mnt/1 > > I take it it doesn't uncompress? > > I'm a bit confused here. > Yes, it won't be uncompressed if you mount with compress option. -- 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
