ceph: client types
We first define constants, types, and prototypes for the kernel client
proper.
A few subsystems are defined separately later: the MDS, OSD, and
monitor clients, and the messaging layer.
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/ceph_frag.c b/fs/ceph/ceph_frag.c
new file mode 100644
index 0000000..ab6cf35
--- /dev/null
+++ b/fs/ceph/ceph_frag.c
@@ -0,0 +1,21 @@
+/*
+ * Ceph 'frag' type
+ */
+#include "types.h"
+
+int ceph_frag_compare(__u32 a, __u32 b)
+{
+ unsigned va = ceph_frag_value(a);
+ unsigned vb = ceph_frag_value(b);
+ if (va < vb)
+ return -1;
+ if (va > vb)
+ return 1;
+ va = ceph_frag_bits(a);
+ vb = ceph_frag_bits(b);
+ if (va < vb)
+ return -1;
+ if (va > vb)
+ return 1;
+ return 0;
+}