X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd-bus%2Fbus-kernel.h;h=8cf153ab4111d0bc7556a2dd37734cba14431c22;hb=d5a2b9a6f455468a0f29483303657ab4fd7013d8;hp=ed3f987ccda7af6ca14e6dcdc24fc8a4acf13164;hpb=bc7fd8cdbef54ebd3902cdd455ecad3e095f7450;p=elogind.git

diff --git a/src/libsystemd-bus/bus-kernel.h b/src/libsystemd-bus/bus-kernel.h
index ed3f987cc..8cf153ab4 100644
--- a/src/libsystemd-bus/bus-kernel.h
+++ b/src/libsystemd-bus/bus-kernel.h
@@ -24,7 +24,18 @@
 #include "sd-bus.h"
 
 #define MEMFD_CACHE_MAX 32
-#define MEMFD_CACHE_ITEM_SIZE_MAX (128*1024)
+
+/* When we cache a memfd block for reuse, we will truncate blocks
+ * longer than this in order not to keep too much data around. */
+#define MEMFD_CACHE_ITEM_SIZE_MAX (32*1024)
+
+/* This determines at which minimum size we prefer sending memfds over
+ * sending vectors */
+#define MEMFD_MIN_SIZE (32*1024)
+
+/* The size of the per-connection memory pool that we set up and where
+ * the kernel places our incoming messages */
+#define KDBUS_POOL_SIZE (16*1024*1024)
 
 struct memfd_cache {
         int fd;