Hi all, This patchset adds NFSv42 COPY support to nfs and nfsd. As suggested by Christoph, it pulls btrfs BTRFS_IOC_CLONE/BTRFS_IOC_CLONE_RANGE ioctls to generic layer and adds a new file operation to call down to file systems. Then the CLONE ioctl is implemented for NFS and NFSD. I took a slightly different approach from Anna's NFS42 COPY implementation (http://www.spinics.net/lists/linux-nfs/msg53009.html) mainly because CLONE has different requirements than COPY. And the main differences between the two are: 1. well, CLONE is supported rather than COPY. 2. vfs_file_clone_range() does not expect file systems to do data copy, and thus no rw_verify_area() required. 3. clone does not expect partial success. 4. clone does not fall back to data copy if underlying storage does not support it. 5. no new system call required. We reuse existing BTRFS_IOC_CLONE/BTRFS_IOC_CLONE_RANGE and make it generic to all file systems. Cheers, Tao Anna Schumaker (2): nfsd: Pass filehandle to nfs4_preprocess_stateid_op() NFSD: Implement the CLONE call Peng Tao (9): vfs: pull btrfs clone API to vfs layer vfs/btrfs: add .clone_range file operation nfs42: decode_layoutstats does not need res parameter nfs42: remove unused declaration nfs42: add CLONE xdr functions nfs42: add CLONE proc functions nfs42: add .copy_range file operation nfs: get clone_blksize when probing fsinfo nfs42: respect clone_blksize fs/btrfs/ctree.h | 2 + fs/btrfs/file.c | 1 + fs/btrfs/ioctl.c | 68 ++++-------------------------- fs/ioctl.c | 30 +++++++++++++ fs/nfs/client.c | 1 + fs/nfs/nfs42.h | 3 +- fs/nfs/nfs42proc.c | 71 +++++++++++++++++++++++++++++++ fs/nfs/nfs42xdr.c | 102 +++++++++++++++++++++++++++++++++++++++++++-- fs/nfs/nfs4file.c | 58 ++++++++++++++++++++++++++ fs/nfs/nfs4proc.c | 4 +- fs/nfs/nfs4xdr.c | 26 ++++++++++++ fs/nfsd/nfs4proc.c | 91 ++++++++++++++++++++++++++++++++++++---- fs/nfsd/nfs4state.c | 5 +-- fs/nfsd/nfs4xdr.c | 21 ++++++++++ fs/nfsd/state.h | 4 +- fs/nfsd/vfs.c | 7 ++++ fs/nfsd/vfs.h | 1 + fs/nfsd/xdr4.h | 10 +++++ fs/read_write.c | 45 ++++++++++++++++++++ include/linux/fs.h | 4 ++ include/linux/nfs4.h | 7 +++- include/linux/nfs_fs_sb.h | 2 + include/linux/nfs_xdr.h | 20 +++++++++ include/uapi/linux/btrfs.h | 10 ----- include/uapi/linux/fs.h | 9 ++++ 25 files changed, 510 insertions(+), 92 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
