This RFC implements user version of "subvolume list/show" using two new ioctls. The ioctl patch to the kernel can be found in the ML titled "[PATCH 0/2] btrfs: Add two new unprivileged ioctls to allow normal users to call "sub list/show" etc."
1st-4th are some prepartion works. 5th patch is the main part. 6th-7th adds the test for "subvolume list" The main behavior differences between root and normal users are: - "subvolume list" only lists subvolumes which exist under the specified path. (The specified path itself is not needed to be a subvolume.) - snapshot filed of "subvolume show" just lists the snapshots under the specified path. This is a part of RFC I sent last December whose aim is to improve normal users' usability. The remaining works of RFC are: - Allow "sub delete" for empty subvolume - Allow "qgroup show" to check quota limit  https://firstname.lastname@example.org/msg70991.html Tomohiro Misono (7): btrfs-progs: Add 2 definitions of new unprivileged ioctl btrfs-progs: sub list: Add helper function which checks the permission for tree search ioctl btrfs-progs: sub list: Pass specified path down to btrfs_list_subvols() btrfs-progs: fallback to open without O_NOATIME flag in find_mount_root() btrfs-progs: sub list: Allow normal user to call "subvolume list/show" btrfs-progs: test: Add helper function to check if test user exists btrfs-porgs: test: Add cli-test/009 to check subvolume list for both root and normal user btrfs-list.c | 289 +++++++++++++++++++++++++++-- btrfs-list.h | 8 +- cmds-subvolume.c | 12 +- ioctl.h | 19 ++ tests/cli-tests/009-subvolume-list/test.sh | 136 ++++++++++++++ tests/common | 10 + utils.c | 13 +- 7 files changed, 464 insertions(+), 23 deletions(-) create mode 100755 tests/cli-tests/009-subvolume-list/test.sh -- 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