[PATCH v4 0/4] mkfs: Fix minimal device check so that reported

[Qu Wenruo <wqu@suse.com>]

Original reported by Wesley AC:
https://github.com/kdave/btrfs-progs/issues/70

Fix it by taking data/meta profile and minimal chunk size into
consideration.

Also introduce a test case for that.

Changelog:
v2:
  Refactor test_minimum_size() to take @min_dev_size directly. Refactor
  patch already in devel branch.
v3:
  Split test/common modification into separate patch.
v4:
  Further split run_mustfail_stdout() and prepare_test_dev()
  modification into separate patch.
  Include the real mkfs fix into patchset, to prevent possible test
  failure.
  Use suggestion from David to use run_check_mount_test_dev() and
  run_check_umount_test_dev().
  Add "-b $good_size" to mkfs command line, so we can see the size in
  test result, to help further debugging.

Qu Wenruo (4):
  btrfs-progs: mkfs: Enhance minimal device size calculation to fix mkfs
    failure on small file
  btrfs-progs: test/common: Introduce run_mustfail_stdout
  btrfs-progs: test/common: Enhance prepare_test_dev to reset device
    size
  btrfs-progs: test/mkfs: Test if the minimal device size is valid

 mkfs/common.c                            | 68 ++++++++++++++++++++++++++++----
 mkfs/common.h                            |  4 +-
 mkfs/main.c                              |  3 +-
 tests/common                             | 58 ++++++++++++++++++++++++++-
 tests/mkfs-tests/010-small-image/test.sh | 49 +++++++++++++++++++++++
 5 files changed, 171 insertions(+), 11 deletions(-)
 create mode 100755 tests/mkfs-tests/010-small-image/test.sh

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2.14.3