X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=trim.c;h=de792dc46fd499beed43baffcc9b68184b04cf13;hp=cf42625b20f26c51f95af6e3d45ba29f838543c5;hb=9d9eb2e7872c99154094f7750d4c978f075b0144;hpb=0d29de831183dfd049c97a03008d425ce21e2fa4

diff --git a/trim.c b/trim.c
index cf42625b..de792dc4 100644
--- a/trim.c
+++ b/trim.c
@@ -21,12 +21,15 @@ int get_next_trim(struct thread_data *td, struct io_u *io_u)
 	if (io_u->file)
 		return 0;
 	if (flist_empty(&td->trim_list))
-		return 0;
+		return 1;
 
 	assert(td->trim_entries);
 	ipo = flist_entry(td->trim_list.next, struct io_piece, trim_list);
 	remove_trim_entry(td, ipo);
-	ipo->flags |= IP_F_TRIMMED;
+
+	io_u->offset = ipo->offset;
+	io_u->buflen = ipo->len;
+	io_u->file = ipo->file;
 
 	/*
 	 * If not verifying that trimmed ranges return zeroed data,
@@ -40,11 +43,9 @@ int get_next_trim(struct thread_data *td, struct io_u *io_u)
 			rb_erase(&ipo->rb_node, &td->io_hist_tree);
 		}
 		td->io_hist_len--;
-	}
-
-	io_u->offset = ipo->offset;
-	io_u->buflen = ipo->len;
-	io_u->file = ipo->file;
+		free(ipo);
+	} else
+		ipo->flags |= IP_F_TRIMMED;
 
 	if (!fio_file_open(io_u->file)) {
 		int r = td_io_open_file(td, io_u->file);
@@ -56,13 +57,12 @@ int get_next_trim(struct thread_data *td, struct io_u *io_u)
 		}
 	}
 
-	get_file(ipo->file);
+	get_file(io_u->file);
 	assert(fio_file_open(io_u->file));
 	io_u->ddir = DDIR_TRIM;
 	io_u->xfer_buf = NULL;
 	io_u->xfer_buflen = io_u->buflen;
 
-	free(ipo);
 	dprint(FD_VERIFY, "get_next_trim: ret io_u %p\n", io_u);
 	return 0;
 }
@@ -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