libnvdimm, btt: refactor map entry operations with macros

[linux-2.6-microblaze.git] / drivers / nvdimm / btt.h

diff --git a/drivers/nvdimm/btt.h b/drivers/nvdimm/btt.h
index 888e862..09fabf5 100644 (file)
--- a/drivers/nvdimm/btt.h
+++ b/drivers/nvdimm/btt.h
@@ -38,6 +38,10 @@
 #define IB_FLAG_ERROR 0x00000001
 #define IB_FLAG_ERROR_MASK 0x00000001
 
+#define ent_lba(ent) (ent & MAP_LBA_MASK)
+#define ent_e_flag(ent) (!!(ent & MAP_ERR_MASK))
+#define ent_z_flag(ent) (!!(ent & MAP_TRIM_MASK))
+
 enum btt_init_state {
        INIT_UNCHECKED = 0,
        INIT_NOTFOUND,