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[dmtests] Add failing test thin/discard/recover-space

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See bz1563697
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Joe Thornber
2018-06-13 16:54:36 +01:00
parent 5d3197b8ab
commit 570e11b2da
1 changed files with 13 additions and 0 deletions
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13
functional-tests/device-mapper/dm-tests.scm
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@@ -668,5 +668,18 @@
(assert-pool-used-data pool (kilo 64) (meg 128))
(delete-thin pool 0)
(assert-pool-used-data pool (kilo 64) (sectors 0))))
(define-dm-scenario (thin discard recover-space)
"Discarding blocks frees up space"
(let ((data-size (meg 128)))
(with-pool (pool (default-md-table)
(default-data-table data-size)
(kilo 64)
(thin-pool-options error-if-no-space skip-block-zeroing))
(with-new-thin (thin pool 0 data-size)
(zero-dev thin)
(discard (dm-device-path thin) 0 (to-sectors data-size))
(assert-pool-used-data pool (kilo 64) (sectors 0))))))
)