tests: (lsfd) add comments about the reason using ts_skip_qemu_user()

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

diff --git a/tests/ts/lsfd/mkfds-ro-block-device b/tests/ts/lsfd/mkfds-ro-block-device
index 598260b14e0a1957a7450fa7845f0d9d03e12104..00ad6c00fc7bc44ab8ff283630ede9edc35968e3 100755 (executable)
--- a/tests/ts/lsfd/mkfds-ro-block-device
+++ b/tests/ts/lsfd/mkfds-ro-block-device
@@ -20,6 +20,8 @@ TS_DESC="block device with O_RDONLY"
 . "$TS_TOPDIR"/functions.sh
 ts_init "$*"
 ts_skip_nonroot
+
+# losetup cannot find an unused loop device.
 ts_skip_qemu_user
 
 . "$TS_SELF"/lsfd-functions.bash