Miklos, This series provides a solution for some interesting non-samefs cases: - All the ext* family - Many other fs with default encode_fh - xfs and tmpfs with overlay "xino" mount option The patches are also available on my ovl-xino branch [2]. They are based on some earlier fix patches and they do not conflict with the NFS export optimization patches (ovl-nfs-export branch). I tested this with upstream overlay/nonsamefs xfstest group: - Tests pass for ext4 - Tests fail for xfs - Tests pass for xfs with OVERLAY_MOUNT_OPTIONS=-oxino I also added --xino option to unionmount-testsuite [2], along with the --verify option, the test verifies constant st_ino and that all objects are on overlay st_dev. Changes since v8: - Use unique fsid instead of layer id - Assign pseudo_dev per fsid instead of per layer - Limit "xino" feature to 64bit systems - Assign xino value i_ino as well for NFSv3 readdir - Add "xino" documentation patch Thanks, Amir. [1] https://github.com/amir73il/linux/commits/ovl-xino [2] https://github.com/amir73il/unionmount-testsuite/commits/overlayfs-devel Amir Goldstein (7): ovl: factor out ovl_map_dev_ino() helper ovl: allocate anon bdev per unique lower fs ovl: constant st_ino for non-samefs with xino ovl: consistent i_ino for non-samefs with xino ovl: consistent d_ino for non-samefs with xino ovl: add support for "xino" mount option ovl: update documentation w.r.t "xino" feature Documentation/filesystems/overlayfs.txt | 39 +++++++-- fs/overlayfs/export.c | 2 +- fs/overlayfs/inode.c | 140 +++++++++++++++++++++----------- fs/overlayfs/namei.c | 4 +- fs/overlayfs/overlayfs.h | 6 +- fs/overlayfs/ovl_entry.h | 21 +++-- fs/overlayfs/readdir.c | 45 ++++++++-- fs/overlayfs/super.c | 120 ++++++++++++++++++++++----- fs/overlayfs/util.c | 38 ++++++++- 9 files changed, 318 insertions(+), 97 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
