1 files changed, 36 insertions, 0 deletions

diff --git a/include/linux/threads.h b/include/linux/threads.h
new file mode 100644
index 000000000000..b59738ac6197
--- /dev/null
+++ b/include/linux/threads.h
@@ -0,0 +1,36 @@
+#ifndef _LINUX_THREADS_H
+#define _LINUX_THREADS_H
+
+#include <linux/config.h>
+
+/*
+ * The default limit for the nr of threads is now in
+ * /proc/sys/kernel/threads-max.
+ */
+
+/*
+ * Maximum supported processors that can run under SMP.  This value is
+ * set via configure setting.  The maximum is equal to the size of the
+ * bitmasks used on that platform, i.e. 32 or 64.  Setting this smaller
+ * saves quite a bit of memory.
+ */
+#ifdef CONFIG_SMP
+#define NR_CPUS         CONFIG_NR_CPUS
+#else
+#define NR_CPUS         1
+#endif
+
+#define MIN_THREADS_LEFT_FOR_ROOT 4
+
+/*
+ * This controls the default maximum pid allocated to a process
+ */
+#define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000)
+
+/*
+ * A maximum of 4 million PIDs should be enough for a while:
+ */
+#define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \
+        (sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))
+
+#endif