dm: refactor dm_md_mempool allocation

[linux-2.6-microblaze.git] / drivers / md / dm-core.h

diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index c954ff9..5d9afca 100644 (file)
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -230,6 +230,9 @@ struct dm_target_io {
        sector_t old_sector;
        struct bio clone;
 };
+#define DM_TARGET_IO_BIO_OFFSET (offsetof(struct dm_target_io, clone))
+#define DM_IO_BIO_OFFSET \
+       (offsetof(struct dm_target_io, clone) + offsetof(struct dm_io, tio))
 
 /*
  * dm_target_io flags