Re: [PATCH] Allow 0ms deadline latency

From: xtu4
Date: Sun Dec 09 2012 - 11:07:58 EST


re-send it
On 12/10/2012 12:01 AM, xtu4 wrote:
Subject: [PATCH] Allow 0ms deadline latency, increase the read speed

Signed-off-by: xiaobing tu <xiaobing.tu@xxxxxxxxx>
---
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;

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