[PATCH blktests v4 08/11] nvme: Add minimal test image size requirement

[Daniel Wagner <dwagner@suse.de>]

Some tests need a minimal test image size to work correctly. Thus add a
helper to check the size and update these tests accordingly.

The image minimum is 4M because some of the test have hard coded values.
All tests which use the xfs fio verification job have a minimum
requirement of 350M impossed by the xfs filesystem.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
 tests/nvme/012 |  1 +
 tests/nvme/013 |  1 +
 tests/nvme/045 |  2 +-
 tests/nvme/rc  | 15 +++++++++++++++
 4 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/tests/nvme/012 b/tests/nvme/012
index ecf44fcb5a51..efe227538c57 100755
--- a/tests/nvme/012
+++ b/tests/nvme/012
@@ -16,6 +16,7 @@ requires() {
 	_have_fio
 	_have_loop
 	_require_nvme_trtype_is_fabrics
+	_require_nvme_test_img_size 350m
 }
 
 test() {
diff --git a/tests/nvme/013 b/tests/nvme/013
index e249add46295..14e646a19c47 100755
--- a/tests/nvme/013
+++ b/tests/nvme/013
@@ -15,6 +15,7 @@ requires() {
 	_have_xfs
 	_have_fio
 	_require_nvme_trtype_is_fabrics
+	_require_nvme_test_img_size 350m
 }
 
 test() {
diff --git a/tests/nvme/045 b/tests/nvme/045
index 7c51da27b5f1..99012f6bed8f 100755
--- a/tests/nvme/045
+++ b/tests/nvme/045
@@ -120,7 +120,7 @@ test() {
 
 	nvmedev=$(_find_nvme_dev "${subsys_name}")
 
-	_run_fio_rand_io --size=8m --filename="/dev/${nvmedev}n1"
+	_run_fio_rand_io --size=4m --filename="/dev/${nvmedev}n1"
 
 	_nvme_disconnect_subsys "${subsys_name}"
 
diff --git a/tests/nvme/rc b/tests/nvme/rc
index 8d5305e280ad..c951339fad7d 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -21,6 +21,7 @@ nvme_img_size=${nvme_img_size:-"1G"}
 
 _nvme_requires() {
 	_have_program nvme
+	_require_nvme_test_img_size 4m
 	case ${nvme_trtype} in
 	loop)
 		_have_driver nvme-loop
@@ -94,6 +95,20 @@ _require_test_dev_is_nvme() {
 	return 0
 }
 
+_require_nvme_test_img_size() {
+	local require_sz_mb
+	local nvme_img_size_mb
+
+	require_sz_mb="$(convert_to_mb "$1")"
+	nvme_img_size_mb="$(convert_to_mb "${nvme_img_size}")"
+
+	if ((nvme_img_size_mb < require_sz_mb)); then
+		SKIP_REASONS+=("nvme_img_size must be at least ${require_sz_mb}m")
+		return 1
+	fi
+	return 0
+}
+
 _require_nvme_trtype() {
 	local trtype
 	for trtype in "$@"; do
-- 
2.40.0