This adds two new unprivileged ioctls: 1st patch: version of tree_search ioctl which only searches/returns subvolume related item. 2nd patch: user version of ino_lookup ioctl which also performs permission check.
They will be used to implement user version of "subvolume list/show" etc in user tools. See each commit log for more detals. The RFC implementation of btrfs-progs can be found in the ML titled as follows: [RFC PATCH 0/7] btrfs-progs: Allow normal user to call "subvolume list/show" Tomohiro Misono (2): btrfs: Add unprivileged subvolume search ioctl btrfs: Add unprivileged version of ino_lookup ioctl fs/btrfs/ioctl.c | 472 +++++++++++++++++++++++++++++++++++++++++++++ include/uapi/linux/btrfs.h | 18 ++ 2 files changed, 490 insertions(+) -- 2.14.3 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
