This patch is a bit more complex thant I hoped. In particular the single
IOScheduling= property exposed on the bus is split up into
IOSchedulingClass= and IOSchedulingPriority= (though compat is
retained). Otherwise the asymmetry between setting props and getting
them is a bit too nasty.
Fixes #5613
return 0;
}
+int ioprio_parse_priority(const char *s, int *ret) {
+ int i, r;
+
+ assert(s);
+ assert(ret);
+
+ r = safe_atoi(s, &i);
+ if (r < 0)
+ return r;
+
+ if (!ioprio_priority_is_valid(i))
+ return -EINVAL;
+
+ *ret = i;
+ return 0;
+}
+
static const char *const ioprio_class_table[] = {
[IOPRIO_CLASS_NONE] = "none",
[IOPRIO_CLASS_RT] = "realtime",
#include <stddef.h>
#include <stdio.h>
#include <string.h>
-#include <sys/types.h>
#include <sys/resource.h>
+#include <sys/types.h>
#include "format-util.h"
+#include "ioprio.h"
#include "macro.h"
#define procfs_file_alloca(pid, field) \
return n >= PRIO_MIN && n < PRIO_MAX;
}
#endif // 0
+
+static inline bool ioprio_class_is_valid(int i) {
+ return IN_SET(i, IOPRIO_CLASS_NONE, IOPRIO_CLASS_RT, IOPRIO_CLASS_BE, IOPRIO_CLASS_IDLE);
+}
+
+static inline bool ioprio_priority_is_valid(int i) {
+ return i >= 0 && i < IOPRIO_BE_NR;
+}
+
+int ioprio_parse_priority(const char *s, int *ret);