patches for DPDK stable branches
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From: Thomas Monjalon <thomas@monjalon.net>
To: 胡林帆 <zhongdahulinfan@163.com>
Cc: Dharmik Thakkar <dharmik.thakkar@arm.com>,
	stable@dpdk.org, Yipeng Wang <yipeng1.wang@intel.com>,
	Sameh Gobriel <sameh.gobriel@intel.com>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Pablo de Lara <pablo.de.lara.guarch@intel.com>,
	dev@dpdk.org, honnappa.nagarahalli@arm.com
Subject: Re: [dpdk-stable] [PATCH v2 1/2] hash: fix bugs in 'free key with position'
Date: Thu, 09 May 2019 13:25:38 +0200	[thread overview]
Message-ID: <3714892.DAfdNftnfW@xps> (raw)
In-Reply-To: <23fbf768.fdd0.16a9c2dda1e.Coremail.zhongdahulinfan@163.com>

09/05/2019 12:40, 胡林帆:
> This bug makes 'lock free reader/writer concurrency hash' unusable.
> There are two reasons:
> 1] memory leak because we cannot free keys which indexes greater than the number of total entries
> 
> 2] the ring of free_slots may have unexpected key conflict with in use one
> 
> The patch fixes these 2 issues, both of which are in the same API:
> 
> int __rte_experimental
> rte_hash_free_key_with_position(const struct rte_hash *h,
>     const int32_t position)
> 
> I don't think it is necessarily to split in 2 patches.

Sorry for insisting, I think it is necessary to split in 2 patches
with better explanations in the commit logs.
Then we'll need approval from the maintainers.

PS1: Please provide your full name in english alphabet
PS2: Please do not top-post


> At 2019-05-09 16:29:56, "Thomas Monjalon" <thomas@monjalon.net> wrote:
> >09/05/2019 00:59, Dharmik Thakkar:
> >> This patch fixes 2 bugs-
> >> 1] Incorrect position returned to the free slots.
> >> 2] Incorrect computation of total_entries
> >
> >Is it possible to split in 2 patches?
> >
> >How critical is this bug? It looks old.
> >I'm afraid it will miss 19.05.




  reply	other threads:[~2019-05-09 11:25 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190508165121.20471-1-dharmik.thakkar@arm.com>
2019-05-08 16:51 ` [dpdk-stable] [PATCH " Dharmik Thakkar
     [not found] ` <20190508225924.21200-1-dharmik.thakkar@arm.com>
2019-05-08 22:59   ` [dpdk-stable] [PATCH v2 " Dharmik Thakkar
2019-05-09  8:29     ` Thomas Monjalon
2019-05-09 10:40       ` 胡林帆
2019-05-09 11:25         ` Thomas Monjalon [this message]
2019-05-09 12:38           ` Dharmik Thakkar
     [not found]   ` <20190509133924.7153-1-dharmik.thakkar@arm.com>
2019-05-09 13:39     ` [dpdk-stable] [PATCH v3 1/3] hash: fix position bug " Dharmik Thakkar
2019-05-09 15:48       ` Wang, Yipeng1
2019-05-09 17:25         ` Dharmik Thakkar
2019-05-09 13:39     ` [dpdk-stable] [PATCH v3 2/3] hash: fix total entries in free key with position Dharmik Thakkar
     [not found]     ` <20190509171907.14693-1-dharmik.thakkar@arm.com>
2019-05-09 17:19       ` [dpdk-stable] [PATCH v4 1/3] hash: fix position bug in 'free key with position' Dharmik Thakkar
2019-05-09 19:27         ` Wang, Yipeng1
2019-05-09 20:14           ` Dharmik Thakkar
2019-05-09 20:23             ` Thomas Monjalon
2019-05-09 20:30               ` Dharmik Thakkar
2019-05-09 17:19       ` [dpdk-stable] [PATCH v4 2/3] hash: fix total entries in free key with position Dharmik Thakkar
2019-05-09 19:32         ` Wang, Yipeng1

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