1 // SPDX-License-Identifier: GPL-2.0
2 #include <sched.h>
3 
4 /*
5  * Not defined anywhere else, probably, just to make sure we
6  * catch future flags
7  */
8 #define SCHED_POLICY_MASK 0xff
9 
10 #ifndef SCHED_DEADLINE
11 #define SCHED_DEADLINE 6
12 #endif
13 #ifndef SCHED_RESET_ON_FORK
14 #define SCHED_RESET_ON_FORK 0x40000000
15 #endif
16 
17 static size_t syscall_arg__scnprintf_sched_policy(char *bf, size_t size,
18 						  struct syscall_arg *arg)
19 {
20 	const char *policies[] = {
21 		"NORMAL", "FIFO", "RR", "BATCH", "ISO", "IDLE", "DEADLINE",
22 	};
23 	size_t printed;
24 	int policy = arg->val,
25 	    flags = policy & ~SCHED_POLICY_MASK;
26 
27 	policy &= SCHED_POLICY_MASK;
28 	if (policy <= SCHED_DEADLINE)
29 		printed = scnprintf(bf, size, "%s", policies[policy]);
30 	else
31 		printed = scnprintf(bf, size, "%#x", policy);
32 
33 #define	P_POLICY_FLAG(n) \
34 	if (flags & SCHED_##n) { \
35 		printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
36 		flags &= ~SCHED_##n; \
37 	}
38 
39 	P_POLICY_FLAG(RESET_ON_FORK);
40 #undef P_POLICY_FLAG
41 
42 	if (flags)
43 		printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
44 
45 	return printed;
46 }
47 
48 #define SCA_SCHED_POLICY syscall_arg__scnprintf_sched_policy
49