X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=trim.c;h=de792dc46fd499beed43baffcc9b68184b04cf13;hp=3da1e749206dc02aaaf633ee25562f3b08c6ee59;hb=e7cb819ba0979f62a9fcc5445b306e737f94fae1;hpb=a917a8b3dfeefdd7007ba2f46f21fc145574309d

diff --git a/trim.c b/trim.c
index 3da1e749..de792dc4 100644
--- a/trim.c
+++ b/trim.c
@@ -70,15 +70,20 @@ int get_next_trim(struct thread_data *td, struct io_u *io_u)
 int io_u_should_trim(struct thread_data *td, struct io_u *io_u)
 {
 	unsigned long long val;
-	long r;
+	unsigned long r;
 
 	if (!td->o.trim_percentage)
 		return 0;
 
-	r = os_random_long(&td->trim_state);
-	val = (OS_RAND_MAX / 100ULL);
-	val *= (unsigned long long) td->o.trim_percentage;
+	if (td->o.use_os_rand) {
+		r = os_random_long(&td->trim_state);
+		val = (OS_RAND_MAX / 100ULL);
+	} else {
+		r = __rand(&td->__trim_state);
+		val = (FRAND_MAX / 100ULL);
+	}
 
+	val *= (unsigned long long) td->o.trim_percentage;
 	return r <= val;
 }
 #endif