When verify fails, dump the good/bad blocks to files

This makes it easy to compare afterwards to see what kind of
corruption was experienced.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/rand.h b/lib/rand.h
index 573116cb..02e68585 100644
--- a/lib/rand.h
+++ b/lib/rand.h
@@ -19,6 +19,7 @@ static inline unsigned int __rand(struct frand_state *state)
 }
 
 extern void init_rand(struct frand_state *);
-extern void fill_random_buf(void *buf, unsigned int len);
+extern void __fill_random_buf(void *buf, unsigned int len, unsigned long seed);
+extern unsigned long fill_random_buf(void *buf, unsigned int len);
 
 #endif