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From: "Wang, Yipeng1" <yipeng1.wang@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>,
	Dharmik Thakkar <dharmik.thakkar@arm.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"Gobriel, Sameh" <sameh.gobriel@intel.com>,
	 "Richardson, Bruce" <bruce.richardson@intel.com>,
	"honnappa.nagarahalli@arm.com" <honnappa.nagarahalli@arm.com>
Subject: Re: [dpdk-dev] [PATCH] lib/hash: remove unnecessary locks in lock-free
Date: Mon, 25 Nov 2019 22:02:55 +0000	[thread overview]
Message-ID: <D2C4A16CA39F7F4E8E384D204491D7A673F3F264@ORSMSX104.amr.corp.intel.com> (raw)
In-Reply-To: <10640783.jF6kOFs2fc@xps>

>-----Original Message-----
>From: Thomas Monjalon [mailto:thomas@monjalon.net]
>Sent: Monday, November 25, 2019 1:55 PM
>To: Wang, Yipeng1 <yipeng1.wang@intel.com>; Dharmik Thakkar <dharmik.thakkar@arm.com>
>Cc: dev@dpdk.org; Gobriel, Sameh <sameh.gobriel@intel.com>; Richardson, Bruce <bruce.richardson@intel.com>;
>honnappa.nagarahalli@arm.com
>Subject: Re: [dpdk-dev] [PATCH] lib/hash: remove unnecessary locks in lock-free
>
>25/11/2019 19:49, Wang, Yipeng1:
>> >-----Original Message-----
>> >From: Dharmik Thakkar [mailto:dharmik.thakkar@arm.com]
>> >Sent: Thursday, November 21, 2019 10:18 AM
>> >To: Wang, Yipeng1 <yipeng1.wang@intel.com>; Gobriel, Sameh <sameh.gobriel@intel.com>; Richardson, Bruce
>> ><bruce.richardson@intel.com>
>> >Cc: dev@dpdk.org; honnappa.nagarahalli@arm.com; Dharmik Thakkar <dharmik.thakkar@arm.com>
>> >Subject: [PATCH] lib/hash: remove unnecessary locks in lock-free
>> >
>> >Remove __hash_rw_reader_unlock() calls from lock free hash lookup
>> >
>> >Signed-off-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
>> >Reviewed-by: Gavin Hu <gavin.hu@arm.com>
>> >Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
>> >---
>> Acked-by: Yipeng Wang <yipeng1.wang@intel.com>
>>
>> Thanks for the patch!
>
>Excuse me, there is no motivation (the why) in this patch.
>Is it critical? which gain?
>
[Wang, Yipeng] 
Thomas, do you mean the commit message is not clear enough?
I think it is self-explained that in the "lock-free" implementation, we don't need
"read_unlock()" and the subject line also says that.
But it is always better to be more explicit.



  reply	other threads:[~2019-11-25 22:03 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-21 18:17 [dpdk-dev] [PATCH] lib/hash: remove unnecessary locks in lock-free Dharmik Thakkar
2019-11-25 18:49 ` Wang, Yipeng1
2019-11-25 21:54   ` Thomas Monjalon
2019-11-25 22:02     ` Wang, Yipeng1 [this message]
2019-11-25 22:44       ` Thomas Monjalon
2019-11-25 22:55         ` Dharmik Thakkar
2019-11-25 23:14           ` Thomas Monjalon
2020-01-17 16:42             ` Dharmik Thakkar
2020-01-19 23:37   ` Thomas Monjalon

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