os: define min/max prio class and level for systems without ioprio

In order to avoid additional ifdef FIO_HAVE_IOPRIO_CLASS/FIO_HAVE_IOPRIO
from being added to the code, define IOPRIO_{MIN,MAX}_PRIO_CLASS and
IOPRIO_{MIN,MAX}_PRIO_CLASS as zero for systems without support for ioprio.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20220203192814.18552-7-Niklas.Cassel@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/os/os.h b/os/os.h
index 5965d7b806b055bf8f2c679da818516a503eb6db..810e61668572171a5b201d110238781ac8f939b3 100644 (file)
--- a/os/os.h
+++ b/os/os.h
@@ -119,10 +119,14 @@ extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
 
 #ifndef FIO_HAVE_IOPRIO_CLASS
 #define ioprio_value_is_class_rt(prio) (false)
+#define IOPRIO_MIN_PRIO_CLASS          0
+#define IOPRIO_MAX_PRIO_CLASS          0
 #endif
 #ifndef FIO_HAVE_IOPRIO
 #define ioprio_value(prioclass, prio)  (0)
 #define ioprio_set(which, who, prioclass, prio)        (0)
+#define IOPRIO_MIN_PRIO                        0
+#define IOPRIO_MAX_PRIO                        0
 #endif
 
 #ifndef FIO_HAVE_ODIRECT