linux-kernel - Re: [PATCH 1/6] genalloc: track beginning of allocations

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Message-ID: <ca8891c9-c916-abf1-7370-5e4f37beaac9@huawei.com>
Date:   Fri, 9 Feb 2018 16:28:06 +0200
From:   Igor Stoppa <igor.stoppa@...wei.com>
To:     Matthew Wilcox <willy@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>
CC:     <jglisse@...hat.com>, <keescook@...omium.org>, <mhocko@...nel.org>,
        <labbott@...hat.com>, <hch@...radead.org>, <cl@...ux.com>,
        <linux-security-module@...r.kernel.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>,
        <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH 1/6] genalloc: track beginning of allocations



On 05/02/18 05:45, Matthew Wilcox wrote:
> On Sun, Feb 04, 2018 at 02:34:08PM -0800, Randy Dunlap wrote:
>>> +/**
>>> + * cleart_bits_ll - according to the mask, clears the bits specified by
>>
>>       clear_bits_ll
> 
> 'make W=1' should catch this ... yes?
> 
> (hint: building with 'make C=1 W=1' finds all kinds of interesting issues
> in your code.  W=12 or W=123 finds too many false positives for my tastes)

ok, thank you, I will start using it

--
igor