From: Jens Axboe <axboe@fb.com>
Date: Wed, 18 May 2016 21:06:05 +0000 (-0600)
Subject: filesetup: align a size given as a percentage to the block size
X-Git-Tag: fio-2.10~19
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=e391c70489d9f63612bce419d7fa0df5d15abf16

filesetup: align a size given as a percentage to the block size

We want it to be a nice multiple of (at least) our minimum block
size.

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/filesetup.c b/filesetup.c
index 9c37ae57..f721c36a 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -894,8 +894,10 @@ int setup_files(struct thread_data *td)
 		if (f->io_size == -1ULL)
 			total_size = -1ULL;
 		else {
-                        if (o->size_percent)
-                                f->io_size = (f->io_size * o->size_percent) / 100;
+                        if (o->size_percent) {
+				f->io_size = (f->io_size * o->size_percent) / 100;
+				f->io_size -= (f->io_size % td_min_bs(td));
+			}
 			total_size += f->io_size;
 		}