linux-kernel - Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2]

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Message-ID: <20191103111738.GC15832@bombadil.infradead.org>
Date:   Sun, 3 Nov 2019 03:17:38 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     David Howells <dhowells@...hat.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>, raven@...maw.net,
        Christian Brauner <christian@...uner.io>,
        keyrings@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-block <linux-block@...r.kernel.org>,
        LSM List <linux-security-module@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring,
 not cursor and length [ver #2]

On Thu, Oct 31, 2019 at 02:57:51PM +0000, David Howells wrote:
> Linus Torvalds <torvalds@...ux-foundation.org> wrote:
> 
> > It's shorter and more obvious to just write
> > 
> >    pipe->head = head;
> > 
> > than it is to write
> > 
> >    pipe_commit_write(pipe, head);
> 
> But easier to find the latter.  But whatever.

May I suggest that you use a name that's easier to grep for?

$ git grep -cw p_tail
drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:9
$ git grep -cw p_head
drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:3