X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=lib%2Flfsr.h;h=95bc07fd57da905b150f893926aee9cbc92ef1be;hp=09f5ac0bd3d73f63541a16ea46778a9d5cecf178;hb=36833fb04b5f9a734e96a571dfb52fc54b5b95e7;hpb=82af46be1fa0c0e188bbb6723008fa33a510606f

diff --git a/lib/lfsr.h b/lib/lfsr.h
index 09f5ac0b..95bc07fd 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 +12,19 @@ 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;
+	uint64_t cached_cycle_length;
+	unsigned int spin;
 };
 
 int lfsr_next(struct fio_lfsr *fl, uint64_t *off);
-int lfsr_init(struct fio_lfsr *fl, uint64_t size, unsigned long seed);
+int lfsr_init(struct fio_lfsr *fl, uint64_t size,
+	      uint64_t seed, unsigned int spin);
+int lfsr_reset(struct fio_lfsr *fl, uint64_t seed);
 
 #endif