CA-40696: Use system macros for fd set sizes.

diff --git a/daemon/tapdisk-dispatch.h b/daemon/tapdisk-dispatch.h
index 9ae77826bf6423d8b411fae80ce3e0c79a344a96..c91f52848552d9bcaa32885cb4886ac375412e43 100644 (file)
--- a/daemon/tapdisk-dispatch.h
+++ b/daemon/tapdisk-dispatch.h
@@ -28,16 +28,18 @@
 #ifndef _TAPDISK_DISPATCH_H_
 #define _TAPDISK_DISPATCH_H_
 
+#include <sys/select.h>
+
 #include "xs_api.h"
 #include "blktaplib.h"
 #include "tapdisk-message.h"
 
 /*
  * This goes below MAX_TAP_DEV, bound by our ipc architecture and
- * fd_set size (1024 bits, minus room for misc). Named pipes are
+ * fd_set size (typically 1024, minus room for misc). Named pipes are
  * simplex. Socketpairs might might have been a better choice.
  */
-#define TAPDISK_DAEMON_MAX_CHANNELS   ((1024 - 16) / 2)
+#define TAPDISK_DAEMON_MAX_CHANNELS   ((FD_SETSIZE - 16) / 2)
 
 typedef enum {
        TAPDISK_CHANNEL_DEAD          = 1,