[PATCH 0/9] random fix for btrfs_ioctl()

[Miao Xie <miaox@cn.fujitsu.com>]

This patchset fixes some bugs of btrfs_ioctl(). Most of them (0004-0009) is
relative to write access permission.

In these patches, the last patch(0009) modified the original process of the device
insertion，and made it follow the rule of the read-only filesystem. It might be
issuable, so mark it RFC.

We can pull this patchset from the URL

	git://github.com/miaoxie/linux-btrfs.git readonly

Thanks
Miao
---
Miao Xie (9):
  Btrfs: pass root object into btrfs_ioctl_{start, wait}_sync()
  Btrfs: don't start a new transaction when starting sync
  Btrfs: fix wrong return value of btrfs_wait_for_commit()
  Btrfs: get write access when setting the default subvolume
  Btrfs: get write access when doing resize fs
  Btrfs: get write access when removing a device
  Btrfs: get write access for scrub
  Btrfs: get write access for qgroup operations
  Btrfs: get write access for adding device (RFC PATCH)

 fs/btrfs/ioctl.c       | 260 ++++++++++++++++++++++++++++++++++++-------------
 fs/btrfs/super.c       |   5 +-
 fs/btrfs/transaction.c |  28 +++---
 fs/btrfs/volumes.c     |  26 ++---
 fs/btrfs/volumes.h     |   3 +-
 5 files changed, 219 insertions(+), 103 deletions(-)

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1.7.11.7