Add a comment explaining the discrepancy in size between kernel and

userland of cpuset_t. Discussed with: jhb
2011-05-03 18:48:06 +00:00 · 2011-05-03 18:48:06 +00:00 · 3d9f29d0f7
commit 3d9f29d0f7
parent 6106275bd4
1 changed files with 4 additions and 0 deletions
--- a/sys/sys/cpuset.h
+++ b/sys/sys/cpuset.h
@ -36,6 +36,10 @@
 #define	CPU_SETSIZE	MAXCPU
 #endif

+/*
+ * In userland a bigger cpuset structure is preferable in order to cope
+ * with kernel bumping of MAXCPU and still have a compatible layout.
+ */
 #define	CPU_MAXSIZE	(4 * MAXCPU)

 #ifndef	CPU_SETSIZE