lkml.org 
[lkml]   [2012]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Allow 0ms deadline latency
On 2012-12-09 17:02, xtu4 wrote:
> 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@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;

Looks fine, it allows FIFO behaviour for deadline as well. I have
applied it.

--
Jens Axboe



\
 
 \ /
  Last update: 2012-12-09 19:41    [W:0.041 / U:0.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site