Hi, > On Thu, 17 Feb 2022, Wang Yugui wrote: > > Hi, > > Cc: NeilBrown > > > > btrfs cross-vfsmount reflink works well now with these 2 patches. > > > > [PATCH] fs: allow cross-vfsmount reflink/dedupe > > [PATCH] btrfs: remove the cross file system checks from remap > > > > But nfs over btrfs still fail to do cross-vfsmount reflink. > > need some patch for nfs too? > > NFS doesn't support reflinks at all, does it? NFS support reflinks now. # df -h /ssd Filesystem Type Size Used Avail Use% Mounted on T640:/ssd nfs4 17T 5.5T 12T 34% /ssd # /bin/cp --reflink=always /ssd/1.txt /ssd/2.txt # uname -a Linux T7610 5.15.24-3.el7.x86_64 #1 SMP Thu Feb 17 12:13:25 CST 2022 x86_64 x86_64 x86_64 GNU/Linux Best Regards Wang Yugui (wangyugui@xxxxxxxxxxxx) 2022/02/17
