[dm-devel] [PATCH 1/1] improve the performance of dm-log-userspace

[Dongmao Zhang]

hi, brassow

   Yes, I had submited a patch lvm-devel.

http://www.redhat.com/archives/lvm-devel/2013-November/msg00093.html.

please review.

I should have add a patch version indicator.







于 2013年12月11日 09:17, Brassow Jonathan 写道:
> Looks good.  Did you happen to post the accompanying userspace patches?  If you pass those along, I will review that also and test them together.  Once that's done, I will ACK.
>
>   brassow
>
> On Dec 3, 2013, at 11:35 PM, dongmao zhang wrote:
>
>> modified workqueue calls on  Hayakawa's comments
>>
>> In the cluster evironment, cluster write has poor performance.
>
> </snip>
>
>> 	spinlock_t flush_lock;
>> 	struct list_head mark_list;
>> 	struct list_head clear_list;
>> +
>> +	/*work queue for flush clear region*/
>
> Use spaces after /* and before */
>
>> +	struct workqueue_struct *dmlog_wq;
>> +	struct delayed_work flush_log_work;
>> +	atomic_t sched_flush;
>> +	uint32_t integrated_flush;
>> };
>
> </snip>
>
>> 	devices_rdata = kzalloc(devices_rdata_size, GFP_KERNEL);
>> 	if (!devices_rdata) {
>> 		DMERR("Failed to allocate memory for device information");
>> @@ -246,6 +268,20 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti,
>> 			DMERR("Failed to register %s with device-mapper",
>> 			      devices_rdata);
>> 	}
>> +
>> +
>
> Extra newline...
>
> The rest looks good.  (Cosmetic issues like this wouldn't prevent my ACK though.)
>
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