linux-kernel - Re: [PATCH 01/12] list.h: add a list

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Date:   Tue, 25 Jun 2019 12:06:06 +0200
From:   Christoph Hellwig <hch@....de>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Christoph Hellwig <hch@....de>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        Damien Le Moal <Damien.LeMoal@....com>,
        Andreas Gruenbacher <agruenba@...hat.com>,
        linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/12] list.h: add a list_pop helper

On Mon, Jun 24, 2019 at 08:51:37AM -0700, Matthew Wilcox wrote:
> The usual convention in list.h is that list_foo uses the list head and
> list_foo_entry uses the container type.  So I think this should be
> renamed to list_pop_entry() at least.  Do we also want:
> 
> static inline struct list_head *list_pop(struct list_head *head)
> {
> 	struct list_head *first = READ_ONCE(head->next);
> 
> 	if (first == head)
> 		return NULL;
> 	__list_del(head, first->next);
> 	return first;
> }
> 
> we also seem to prefer using inline functions over #defines in this
> header file.

Sure, I can rename it and split the implementation.