| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| 3 | * |
| 4 | * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #ifndef _UST_COMMON_SMP_H |
| 8 | #define _UST_COMMON_SMP_H |
| 9 | |
| 10 | /* |
| 11 | * Returns the total number of CPUs in the system. If the cache is not yet |
| 12 | * initialized, get the value from the system through sysconf and cache it. |
| 13 | * |
| 14 | * If the sysconf call fails, don't populate the cache and return 0. |
| 15 | */ |
| 16 | int num_possible_cpus(void); |
| 17 | |
| 18 | #define for_each_possible_cpu(cpu) \ |
| 19 | for ((cpu) = 0; (cpu) < num_possible_cpus(); (cpu)++) |
| 20 | |
| 21 | #endif /* _UST_COMMON_SMP_H */ |