[PATCH] xfstests: add test for btrfs data corruption when using compression

[Josef Bacik]

On 02/08/2014 10:50 AM, Filipe David Borba Manana wrote:
> Test for a btrfs data corruption when using compressed files/extents.
> Under certain cases, it was possible for reads to return random data
> (content from a previously used page) instead of zeroes. This also
> caused partial updates to those regions that were supposed to be filled
> with zeroes to save random (and invalid) data into the file extents.
>
> This is fixed by the commit for the linux kernel titled:
>
>     Btrfs: fix data corruption when reading/updating compressed extents
>     (https://urldefense.proofpoint.com/v1/url?u=https://patchwork.kernel.org/patch/3610391/&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=cKCbChRKsMpTX8ybrSkonQ%3D%3D%0A&m=JRaF%2BUY%2F2k%2BBfF9nTx3Iwl5JZWNCwew%2BI%2Fw%2B%2BfuDrgc%3D%0A&s=4a033ea8f3cf1f28794e90fcf16ea553766bb1ea83e10fc904182a8f56435eef)
>

Ran with and without the corresponding fix and all worked as expected. 
You can add

Reviewed-by: Josef Bacik <jbacik at fb.com>

Thanks,

Josef