From: ehrhardt@linux.vnet.ibm.com
To: fio@vger.kernel.org
Cc: oberpar@linux.vnet.ibm.com,
Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Subject: [patch 8/9] fio: fix last block never being touched by random offsets
Date: Thu, 20 Feb 2014 14:20:06 +0100 [thread overview]
Message-ID: <20140220132051.624645398@linux.vnet.ibm.com> (raw)
*Resend with hopefully non mangled patches*
References: <20140220131958.965092001@linux.vnet.ibm.com>
Content-Disposition: inline; filename=fix_last_block.diff
From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Fix the available range for random offsets which never touched the last block.
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
---
[diffstat]
io_u.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/io_u.c
+++ b/io_u.c
@@ -104,7 +104,7 @@ static int __get_next_rand_offset(struct
dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
- *b = (lastb - 1) * (r / ((uint64_t) rmax + 1.0));
+ *b = lastb * (r / ((uint64_t) rmax + 1.0));
} else {
uint64_t off = 0;
next reply other threads:[~2014-02-20 13:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-20 13:20 ehrhardt [this message]
2014-02-20 17:18 ` [patch 8/9] fio: fix last block never being touched by random offsets Jens Axboe
2014-02-28 16:46 ` Peter Oberparleiter
2014-02-28 17:07 ` Jens Axboe
[not found] <20140219143639.168501090@linux.vnet.ibm.com>
2014-02-19 15:12 ` Christian Ehrhardt
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