X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=lib%2Flfsr.h;h=bc16af966af4a350a25bd2119dc551b09cc6ed2e;hp=898646e27b4207cbec289a675aa669d9a660d626;hb=d474cbc9ba33448848b50cc697622a402e91e33e;hpb=7477673323a943b99ea203bb9434661d13a0159c

diff --git a/lib/lfsr.h b/lib/lfsr.h
index 898646e2..bc16af96 100644
--- a/lib/lfsr.h
+++ b/lib/lfsr.h
@@ -3,7 +3,7 @@
 
 #include <inttypes.h>
 
-#define FIO_MAX_TAPS	8
+#define FIO_MAX_TAPS	6
 
 struct lfsr_taps {
 	unsigned int length;
@@ -12,13 +12,18 @@ struct lfsr_taps {
 
 
 struct fio_lfsr {
+	uint64_t xormask;
 	uint64_t last_val;
+	uint64_t cached_bit;
 	uint64_t max_val;
 	uint64_t num_vals;
-	struct lfsr_taps taps;
+	uint64_t cycle_length;
+	unsigned int spin;
 };
 
 int lfsr_next(struct fio_lfsr *fl, uint64_t *off, uint64_t);
-int lfsr_init(struct fio_lfsr *fl, uint64_t size, unsigned long seed);
+int lfsr_init(struct fio_lfsr *fl, uint64_t size,
+		unsigned long seed, unsigned int spin);
+int lfsr_reset(struct fio_lfsr *fl, unsigned long seed);
 
 #endif