1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/threads.h b/include/linux/threads.h
index b59738ac6197..e646bcdf2614 100644
--- a/include/linux/threads.h
+++ b/include/linux/threads.h
@@ -28,7 +28,8 @@
 #define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000)
 /*
- * A maximum of 4 million PIDs should be enough for a while:
+ * A maximum of 4 million PIDs should be enough for a while.
+ * [NOTE: PID/TIDs are limited to 2^29 ~= 500+ million, see futex.h.]
 */
 #define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \
        (sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))

diff --git a/include/linux/threads.h b/include/linux/threads.h index b59738ac6197..e646bcdf2614 100644 --- a/include/linux/threads.h +++ b/include/linux/threads.h
@@ -28,7 +28,8 @@
28	#define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000)	28	#define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000)
29		29
30	/*	30	/*
31	* A maximum of 4 million PIDs should be enough for a while:	31	* A maximum of 4 million PIDs should be enough for a while.
		32	* [NOTE: PID/TIDs are limited to 2^29 ~= 500+ million, see futex.h.]
32	*/	33	*/
33	#define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \	34	#define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \
34	(sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))	35	(sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))