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