linux-kernel - Re: [RFC][PATCH 7/7] kref: Implement using refcount

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Date:   Sat, 19 Nov 2016 12:45:11 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     "Reshetova, Elena" <elena.reshetova@...el.com>
Cc:     "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "will.deacon@....com" <will.deacon@....com>,
        "arnd@...db.de" <arnd@...db.de>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "hpa@...or.com" <hpa@...or.com>,
        "dave@...gbits.org" <dave@...gbits.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH 7/7] kref: Implement using refcount_t

On Sat, Nov 19, 2016 at 07:14:08AM +0000, Reshetova, Elena wrote:
> > Well, if you get to tools (cocci script or whatever) to reliably work
> > fork atomic_t, then converting the few atomic_long_t's later should be
> > trivial.
> 
> I am using coccinelle to find all occurrences, but I do the changes
> only in semi-automated fashion.

If you can get the detection solid, that's good enough.

> Each change needs a proper manual review anyway and often one variable
> usage is spread between different headers/source files, so I prefer
> not to go to full automation and then not being sure what I have done.

Sure, every patch needs review, regardless of how it came to be.