Re: [PATCH v2 1/3] xfstests/btrfs: add qgroup rescan stress test

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On 03/09/2014 11:44 PM, Wang Shilong wrote:
> Test flow is to run fsstress after triggering quota rescan. the
> ruler is simple, we just remove all files and directories, sync
> filesystem and see if qgroup's ref and excl are nodesize.
> 
> Signed-off-by: Wang Shilong <wangsl.fnst@xxxxxxxxxxxxxx> --- 
> v1->v2: switch into new helper _run_btrfs_util_prog() --- 
> tests/btrfs/041     | 76
> +++++++++++++++++++++++++++++++++++++++++++++++++++++ 
> tests/btrfs/041.out |  3 +++ tests/btrfs/group   |  1 + 3 files
> changed, 80 insertions(+) create mode 100644 tests/btrfs/041 create
> mode 100644 tests/btrfs/041.out
> 

So this doesn't pass for me but it's not because we're broken, it's
because the test is broken.  What you should do is run sync after you
do the rm, and then capture the output of btrfs qgroup show, and then
do the rescan and redo qgroup show and make sure the numbers match.  I
did this in my qgroup test, you can look there as an example.  Thanks,

Josef

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