[PATCH 0/3] btrfs: fix false alerts when running with 8K block size and 4K page size

[Qu Wenruo <wqu@suse.com>]

I am developing the bs > ps support for btrfs, and now it can pass most
btrfs and generic runs.

Some failures are due to the limitaions of the current bs > ps,
including:

- btrfs/023
  No RAID56 support, and the test case doesn't respect
  BTRFS_PROFILE_CONFIGS

- btrfs/131
  No v1 cache support just like subpage bs support.
  No big deal, as v1 cache is already marked deprecated.
  When the full deprecation comes, the test case needs some update.

- btrfs/226
  No Direct IO support.

- btrfs/267
  No Direct IO support thus the read falls back to buffered one.
  The fallback may change the pid thus some mirror is not properly read
  from disk and no read repair.

- btrfs/281
  No encoded send support

However there are some btrfs failures that are false alerts:

- btrfs/012
- btrfs/136
  Those are btrfs-convert tests, however ext* doesn't support bs > ps
  cases yet.

  Fix them by skip the run if the initial ext* mount failed.

- btrfs/192
  This one requires 4K nodesize, which implies 4K block size, and
  conflicts with user specified non-4K block size.

- btrfs/30[456]
  Those test cases have strict 4K block size requirement but still
  follows the user specified block size during mkfs.

  Fix btrfs/192 and btrfs/30[456] by explicitly specify 4K block size
  during mkfs.

There is also a minor comment mismatch in btrfs/267:

- btrfs/267 is verifying direct read repair but comments says buffered
  Instead it's btrfs/266 verifying the buffered behavior.
  So it's purely a comment mismatch.

  Fix it by explicitly mentioning buffered/direct IO for btrfs/26[67].


Qu Wenruo (3):
  btrfs/012 btrfs/136: skip the test if ext* doesn't support the block
    size
  btrfs/192 btrfs/30[456]: explicitly specify block size to avoid false
    alerts
  btrfs/26[67]: update the stale comments

 tests/btrfs/012 | 3 +++
 tests/btrfs/136 | 3 +++
 tests/btrfs/192 | 8 ++------
 tests/btrfs/266 | 4 ++--
 tests/btrfs/267 | 2 +-
 tests/btrfs/304 | 5 ++---
 tests/btrfs/305 | 5 ++---
 tests/btrfs/306 | 5 ++---
 8 files changed, 17 insertions(+), 18 deletions(-)

-- 
2.51.0