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mimic: qa/workunits/rbd: wait for rbd-nbd unmap to complete #28310

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Jul 16, 2019
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mimic: qa/workunits/rbd: wait for rbd-nbd unmap to complete #28310

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19 changes: 15 additions & 4 deletions qa/workunits/rbd/rbd-nbd.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,19 @@ function get_pid()
ps -p ${PID} -o cmd | grep rbd-nbd
}

unmap_device()
{
local unmap_dev=$1
local list_dev=$2
_sudo rbd-nbd unmap ${unmap_dev}

for s in 0.5 1 2 4 8 16 32; do
sleep ${s}
rbd-nbd list-mapped | expect_false grep "${list_dev} $" && return 0
done
return 1
}

#
# main
#
Expand Down Expand Up @@ -110,8 +123,7 @@ get_pid
# map test specifying the device
expect_false _sudo rbd-nbd --device ${DEV} map ${POOL}/${IMAGE}
dev1=${DEV}
_sudo rbd-nbd unmap ${DEV}
rbd-nbd list-mapped | expect_false grep "${DEV} $"
unmap_device ${DEV} ${DEV}
DEV=
# XXX: race possible when the device is reused by other process
DEV=`_sudo rbd-nbd --device ${dev1} map ${POOL}/${IMAGE}`
Expand Down Expand Up @@ -190,8 +202,7 @@ ps -p ${PID} -o cmd | expect_false grep rbd-nbd
rbd snap create ${POOL}/${IMAGE}@snap
DEV=`_sudo rbd-nbd map ${POOL}/${IMAGE}@snap`
get_pid
_sudo rbd-nbd unmap "${IMAGE}@snap"
rbd-nbd list-mapped | expect_false grep "${DEV} $"
unmap_device "${IMAGE}@snap" ${DEV}
DEV=
ps -p ${PID} -o cmd | expect_false grep rbd-nbd

Expand Down