Add support for cpus_allowed_policy
Two policies are supported:
shared cpumask is shared between all threads. This is the original
behavior.
split cpumask is split between threads, each thread gets a unique
CPU.
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/os/os.h b/os/os.h
index 03d1e9a..a6bc17f 100644
--- a/os/os.h
+++ b/os/os.h
@@ -80,7 +80,10 @@
#define fio_getaffinity(pid, mask) do { } while (0)
#define fio_cpu_clear(mask, cpu) do { } while (0)
#define fio_cpuset_exit(mask) (-1)
+#define fio_cpus_split(mask, cpu) (0)
typedef unsigned long os_cpu_mask_t;
+#else
+extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
#endif
#ifndef FIO_HAVE_IOPRIO