linux-kernel - Re: [PATCH v2 4/4] drivers/base/memory.c: Rename the misleading parameter

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Message-ID: <20190326114358.GM10344@bombadil.infradead.org>
Date:   Tue, 26 Mar 2019 04:43:58 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Baoquan He <bhe@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        akpm@...ux-foundation.org, mhocko@...e.com, rppt@...ux.ibm.com,
        osalvador@...e.de, william.kucharski@...cle.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: Re: [PATCH v2 4/4] drivers/base/memory.c: Rename the misleading
 parameter

On Tue, Mar 26, 2019 at 05:02:27PM +0800, Baoquan He wrote:
> The input parameter 'phys_index' of memory_block_action() is actually
> the section number, but not the phys_index of memory_block. Fix it.

>  static int
> -memory_block_action(unsigned long phys_index, unsigned long action, int online_type)
> +memory_block_action(unsigned long sec, unsigned long action, int online_type)

'sec' is a bad abbreviation for 'section'.  We don't use it anyhere else
in the vm.

Looking through include/, I see it used as an abbreviation for second,
security, ELF section, and section of a book.  Nowhere as a memory
block section.  Please use an extra four letters for this parameter.