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authorSage Weil <sage@newdream.net>2009-10-06 11:31:07 -0700
committerSage Weil <sage@newdream.net>2009-10-06 11:31:07 -0700
commitde57606c23afded22202825b3db8a5d61859f198 (patch)
tree87ca160cf9655161dbd3c42b1bdc23c4b5584e1d /fs/ceph/ceph_frag.c
parent0dee3c28af2fbe22ca62739a7f57da5435d35793 (diff)
downloadlinux-de57606c23afded22202825b3db8a5d61859f198.tar.bz2
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>
Diffstat (limited to 'fs/ceph/ceph_frag.c')
-rw-r--r--fs/ceph/ceph_frag.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/ceph/ceph_frag.c b/fs/ceph/ceph_frag.c
new file mode 100644
index 000000000000..ab6cf35c4091
--- /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;
+}