From: "J. Bruce Fields" <bfields@xxxxxxxxxx> These patches move a little more of the change attribute logic into the filesystems. They should let us skip a few unnecessary stats, and use the source filesystem's change attribute in the NFS reexport case. Do this look reasonable to everyone else? J. Bruce Fields (3): nfs: use change attribute for NFS re-exports nfsd: move change attribute generation to filesystem nfsd: skip some unnecessary stats in the v4 case fs/btrfs/export.c | 2 ++ fs/ext4/super.c | 9 +++++++++ fs/nfs/export.c | 18 ++++++++++++++++++ fs/nfsd/nfs3xdr.c | 37 ++++++++++++++++++++----------------- fs/nfsd/nfsfh.h | 28 ++++++---------------------- fs/xfs/xfs_export.c | 10 ++++++++++ include/linux/exportfs.h | 1 + include/linux/iversion.h | 26 ++++++++++++++++++++++++++ 8 files changed, 92 insertions(+), 39 deletions(-) -- 2.29.2