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iotests/common.rc: add disk_usage function

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Move the definition from iotests/250 to common.rc.  This is used to
detect real disk usage of sparse files.  In particular, we want to use
it for checking subclusters-based discards.

Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-ID: <20240913163942.423050-6-andrey.drobyshev@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20250509204341.3553601-27-eblake@redhat.com>
This commit is contained in:
Andrey Drobyshev 2025-05-09 15:40:29 -05:00 • committed by Eric Blake
parent 7e277545b9
commit be9bac072e
2 changed files with 6 additions and 5 deletions
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5
tests/qemu-iotests/250
View file

@ -52,11 +52,6 @@ _unsupported_imgopts data_file
# bdrv_co_truncate(bs->file) call in qcow2_co_truncate(), which might succeed
# anyway.
disk_usage()
{
du --block-size=1 $1 | awk '{print $1}'
}
size=2100M
_make_test_img -o "cluster_size=1M,preallocation=metadata" $size

6
tests/qemu-iotests/common.rc
View file

@ -140,6 +140,12 @@ _optstr_add()
fi
}
# report real disk usage for sparse files
disk_usage()
{
du --block-size=1 "$1" | awk '{print $1}'
}
# Set the variables to the empty string to turn Valgrind off
# for specific processes, e.g.
# $ VALGRIND_QEMU_IO= ./check -qcow2 -valgrind 015