kernel 5.5 released Sunday. Btrfs now has raid1c3, raid1c4 profiles for 3 and 4 copy raid1. Adds new checksum algorithms: xxhash, blake2b, sha256. Async discar

kernel 5.5 released Sunday. Btrfs now has raid1c3, raid1c4 profiles for 3 and 4 copy raid1. Adds new checksum algorithms: xxhash, blake2b, sha256. Async discards coming in 5.6. https://lore.kernel.org/linux-btrfs/cover.1580142284.git.dsterba@suse.com/T/#u https://lore.kernel.org/linux-btrfs/cover.1580142284.git.dst...