[PATCH REPOST blktests v2 1/9] nvme-rc: Auto convert test device size info

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Introduce a convert_to_mb() helper which converts the size argument
to MBytes and use in test device require function. This makes it
possible to use user input strings in future.

Signed-off-by: Daniel Wagner <dwagner@xxxxxxx>
---
 common/rc      | 30 +++++++++++++++++++++++++++---
 tests/nvme/035 |  2 +-
 2 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/common/rc b/common/rc
index af4c0b1cab22..dd0afda3d821 100644
--- a/common/rc
+++ b/common/rc
@@ -324,9 +324,12 @@ _get_pci_parent_from_blkdev() {
 		tail -2 | head -1
 }
 
-_require_test_dev_size_mb() {
-	local require_sz_mb=$1
-	local test_dev_sz_mb=$(($(blockdev --getsize64 "$TEST_DEV")/1024/1024))
+_require_test_dev_size() {
+	local require_sz_mb
+	local test_dev_sz_mb
+
+	require_sz_mb="$(convert_to_mb "$1")"
+	test_dev_sz_mb="$(($(blockdev --getsize64 "$TEST_DEV")/1024/1024))"
 
 	if (( "$test_dev_sz_mb" < "$require_sz_mb" )); then
 		SKIP_REASONS+=("${TEST_DEV} required at least ${require_sz_mb}m")
@@ -422,3 +425,24 @@ _have_writeable_kmsg() {
 _run_user() {
 	su "$NORMAL_USER" -c "$1"
 }
+
+convert_to_mb()
+{
+    local str=$1
+    local res
+
+    res=$(echo "${str}" | sed -n 's/^\([0-9]\+\)$/\1/p')
+    if [[ -n "${res}" ]]; then
+        echo "$((res / 1024 / 1024))"
+    fi
+
+    res=$(echo "${str}" | sed -n 's/^\([0-9]\+\)[mM]$/\1/p')
+    if [[ -n "${res}" ]]; then
+        echo "$((res))"
+    fi
+
+    res=$(echo "${str}" | sed -n 's/^\([0-9]\+\)[gG]$/\1/p')
+    if [[ -n "${res}" ]]; then
+        echo "$((res * 1024))"
+    fi
+}
diff --git a/tests/nvme/035 b/tests/nvme/035
index d169e351e3d0..eb1024edddbf 100755
--- a/tests/nvme/035
+++ b/tests/nvme/035
@@ -17,7 +17,7 @@ requires() {
 }
 
 device_requires() {
-	_require_test_dev_size_mb 1024
+	_require_test_dev_size 1024m
 }
 
 test_device() {
-- 
2.40.0




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