[PATCH v6] Add cli and ioctl to forget scanned device(s)

[Anand Jain <anand.jain@oracle.com>]

v6:
 Use the changed fn name btrfs_free_stale_devices().
 
 Change in title:
 Old v5:
 Cover-letter:
  [PATCH v5] Add cli and ioctl to ignore a scanned device
 Kernel:
  [PATCH v5] btrfs: introduce feature to ignore a btrfs device
 Progs:
  [PATCH v5] btrfs-progs: add 'btrfs device ignore' cli

v5:
  Adds feature to delete all stale devices
  Reuses btrfs_free_stale_devices() fn and so depends on the
    patch-set [1] in the ML.
  Uses struct btrfs_ioctl_vol_args_v2 instead of
    struct btrfs_ioctl_vol_args as arg
  Does the device path matching instead of btrfs_device matching
    (we won't delete the mounted device as btrfs_free_stale_devices()
    checks for it)
v4:
  No change. But as the ML thread may be confusing, so resend.
v3:
  No change. Send to correct ML.
v2:
  Accepts review from Nikolay, details are in the specific patch.
  Patch 1/2 is renamed from
    [PATCH 1/2] btrfs: refactor btrfs_free_stale_device() to get device list delete
  to
    [PATCH 1/2] btrfs: add function to device list delete

Adds cli and ioctl to forget a scanned device or forget all stale
devices in the kernel.

Anand Jain (1):
  btrfs: introduce feature to forget a btrfs device

 fs/btrfs/super.c           | 27 +++++++++++++++++++++++----
 fs/btrfs/volumes.c         |  9 +++++++++
 fs/btrfs/volumes.h         |  1 +
 include/uapi/linux/btrfs.h |  6 +++++-
 4 files changed, 38 insertions(+), 5 deletions(-)

Anand Jain (1):
  btrfs-progs: add cli to forget one or all scanned devices

 cmds-device.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 ioctl.h       |  6 ++++-
 2 files changed, 82 insertions(+), 1 deletion(-)

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2.7.0