From: xtu4 <xiaobing.tu@intel.com>
To: linux-kernel@vger.kernel.org, 'axboe@kernel.dk',
di.zhang@intel.com, xtu4 <xiaobing.tu@intel.com>
Subject: [PATCH] Allow 0ms deadline latency
Date: Mon, 10 Dec 2012 00:01:27 +0800 [thread overview]
Message-ID: <50C4B5D7.4030808@intel.com> (raw)
Subject: [PATCH] Allow 0ms deadline latency, increase the read speed
Signed-off-by: xiaobing tu <xiaobing.tu@intel.com>
---
block/deadline-iosched.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c
index c644137..e502d6b 100644
--- a/block/deadline-iosched.c
+++ b/block/deadline-iosched.c
@@ -230,7 +230,7 @@ static inline int deadline_check_fifo(struct
deadline_data *dd, int ddir)
/*
* rq is expired!
*/
- if (time_after(jiffies, rq_fifo_time(rq)))
+ if (time_after_eq(jiffies, rq_fifo_time(rq)))
return 1;
return 0;
--
1.7.6
next reply other threads:[~2012-12-09 16:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-09 16:01 xtu4 [this message]
2012-12-09 16:02 ` xtu4
2012-12-09 18:18 ` Jens Axboe
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