[0/4] Add support for a group of btrfs filesystem ioctl

Message

Filip Bozuta July 9, 2020, 3:51 p.m. UTC

This series covers support for following btrfs ioctls

    *BTRFS_SUBVOL_CREATE      *BTRFS_IOC_ADD_DEV
    *BTRFS_SUBVOL_SETFLAGS    *BTRFS_IOC_RM_DEV
    *BTRFS_SUBVOL_GETFLAGS    *BTRFS_IOC_DEV_INFO
    *BTRFS_GET_SUBVOL_INFO    *BTRFS_IOC_GET_DEV_STATS
    *BTRFS_IOC_SNAP_CREATE    *BTRFS_IOC_GET_FEATURES
    *BTRFS_IOC_SNAP_DESTROY   *BTRFS_IOC_SET_FEATURES
    *BTRFS_IOC_SCAN_DEV       *BTRFS_IOC_GET_SUPPORTED_FEATURES

The functionalities of individual ioctls were described in this series
patch commit messages. Since all of these ioctls are added in kernel
version 3.9, their definitions in file 'linux-user/ioctls.h' are
enwrapped in an #ifdef directive.

Testing method:

    Mini test programs were written for these ioctls. These test programs
    can be found on a repositort which is located on the link:
    https://github.com/bozutaf/btrfs-tests

    These test programs were compiled (sometimes using cross compilers) for
    following architectures:

         * Intel 64-bit (little endian)
         * Power pc 32-bit (big endian)
         * Power pc 64-bit (big endian)

    The corresponding native programs were executed without using QEMU on
    an intel x86_64 host.

    All applicable compiled programs were in turn executed through QEMU
    and the results obtained were the same ones gotten for native
    execution.

Filip Bozuta (4):
  linux-user: Add support for a group of btrfs ioctls used for
    subvolumes
  linux-user: Add support for a group of btrfs ioctls used for snapshots
  linux-user: Add support for btrfs ioctls used to manipulate with
    devices
  linux-user: Add support for btrfs ioctls used to get/set features

 configure                  |  9 ++++++
 linux-user/ioctls.h        | 59 ++++++++++++++++++++++++++++++++++++++
 linux-user/syscall.c       |  3 ++
 linux-user/syscall_defs.h  | 32 +++++++++++++++++++++
 linux-user/syscall_types.h | 49 +++++++++++++++++++++++++++++++
 5 files changed, 152 insertions(+)