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Subject: Re: [PATCH NET 1/7] skbuff: introduce pskb_realloc_headroom()
To:     Jakub Kicinski <kuba@kernel.org>
Cc:     "David S. Miller" <davem@davemloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
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        Andrii Nakryiko <andrii@kernel.org>,
        Martin KaFai Lau <kafai@fb.com>,
        Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
        KP Singh <kpsingh@kernel.org>, bpf@vger.kernel.org,
        linux-kernel@vger.kernel.org
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From:   Vasily Averin <vvs@virtuozzo.com>
Message-ID: <55c9e2ae-b060-baa2-460c-90eb3e9ded5c@virtuozzo.com>
Date:   Mon, 12 Jul 2021 21:45:28 +0300
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On 7/12/21 8:53 PM, Jakub Kicinski wrote:
> I saw you asked about naming in a different sub-thread, what do you
> mean by "'pskb_expand_head' have different semantic"? AFAIU the 'p'
> in pskb stands for "private", meaning not shared. In fact
> skb_realloc_headroom() should really be pskb... but it predates the 
> 'pskb' naming pattern by quite a while. Long story short
> skb_expand_head() seems like a good name. With the current patch
> pskb_realloc_headroom() vs skb_realloc_headroom() would give people
> exactly the opposite intuition of what the code does.

Thank you for feedback,
I'll change helper name back to skb_expand_head() in next patch version.

	Vasily Averin