ceph: move max constant definitions

Move some definitions for max integer values out of the rbd code and
into the more central "decode.h" header file.  These really belong
in a Linux (or libc) header somewhere, but I haven't gotten around
to proposing that yet.

This is in preparation for moving some code out of rbd.c and into
the osd client.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h
index 360d9d08ca9e..689f1df37bff 100644
--- a/include/linux/ceph/decode.h
+++ b/include/linux/ceph/decode.h
@@ -8,6 +8,13 @@
 
 #include <linux/ceph/types.h>
 
+/* This seemed to be the easiest place to define these */
+
+#define U8_MAX  ((u8)  (~0U))
+#define U16_MAX ((u16) (~0U))
+#define U32_MAX ((u32) (~0U))
+#define U64_MAX ((u64) (~0ULL))
+
 /*
  * in all cases,
  *   void **p     pointer to position pointer