X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Flfsr.c;h=61a3aaf3e6532c32722314da125bcce69cf98416;hb=5be4c944e83b32c0c6842130df3dc1d46cd6eb1f;hp=975c6a5aaf6b813e5a1d4e6bd7ec63e65e67a5ae;hpb=7477673323a943b99ea203bb9434661d13a0159c;p=fio.git

diff --git a/lib/lfsr.c b/lib/lfsr.c
index 975c6a5a..61a3aaf3 100644
--- a/lib/lfsr.c
+++ b/lib/lfsr.c
@@ -244,6 +244,17 @@ static struct lfsr_taps *find_lfsr(uint64_t size)
 	return NULL;
 }
 
+void lfsr_reset(struct fio_lfsr *fl, unsigned long seed)
+{
+	unsigned int i;
+
+	fl->last_val = seed;
+	fl->num_vals = 0;
+
+	for (i = 0; i < FIO_LFSR_CRANKS; i++)
+		fl->last_val = __lfsr_next(fl->last_val, &fl->taps);
+}
+
 int lfsr_init(struct fio_lfsr *fl, uint64_t size, unsigned long seed)
 {
 	struct lfsr_taps *tap;
@@ -253,18 +264,15 @@ int lfsr_init(struct fio_lfsr *fl, uint64_t size, unsigned long seed)
 	if (!tap)
 		return 1;
 
-	fl->last_val = seed;
 	fl->max_val = size - 1;
-	fl->num_vals = 0;
 	fl->taps.length = tap->length;
+
 	for (i = 0; i < FIO_MAX_TAPS; i++) {
 		fl->taps.taps[i] = tap->taps[i];
 		if (!fl->taps.taps[i])
 			break;
 	}
 
-	for (i = 0; i < FIO_LFSR_CRANKS; i++)
-		fl->last_val = __lfsr_next(fl->last_val, &fl->taps);
-
+	lfsr_reset(fl, seed);
 	return 0;
 }