linux-kernel - Re: [PATCH v6 12/12] mmap locking API: convert mmap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CANN689GXWS9yHTw0aN-tAkd9tyA-vRn0GbJgC+Td=1r13KBZzA@mail.gmail.com>
Date:   Thu, 21 May 2020 00:50:56 -0700
From:   Michel Lespinasse <walken@...gle.com>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-mm <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Matthew Wilcox <willy@...radead.org>,
        Liam Howlett <Liam.Howlett@...cle.com>,
        Jerome Glisse <jglisse@...hat.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        David Rientjes <rientjes@...gle.com>,
        Hugh Dickins <hughd@...gle.com>, Ying Han <yinghan@...gle.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Daniel Jordan <daniel.m.jordan@...cle.com>,
        John Hubbard <jhubbard@...dia.com>
Subject: Re: [PATCH v6 12/12] mmap locking API: convert mmap_sem comments

On Thu, May 21, 2020 at 12:42 AM Vlastimil Babka <vbabka@...e.cz> wrote:
> On 5/20/20 7:29 AM, Michel Lespinasse wrote:
> > Convert comments that reference mmap_sem to reference mmap_lock instead.
> >
> > Signed-off-by: Michel Lespinasse <walken@...gle.com>
>
> Reviewed-by: Vlastimil Babka <vbabka@...e.cz>
>
> But:
>
> > diff --git a/mm/mempolicy.c b/mm/mempolicy.c
> > index a1247d3553da..1bf46e2e0cec 100644
> > --- a/mm/mempolicy.c
> > +++ b/mm/mempolicy.c
> > @@ -224,7 +224,7 @@ static int mpol_new_bind(struct mempolicy *pol, const nodemask_t *nodes)
> >   * handle an empty nodemask with MPOL_PREFERRED here.
> >   *
> >   * Must be called holding task's alloc_lock to protect task's mems_allowed
> > - * and mempolicy.  May also be called holding the mmap_semaphore for write.
> > + * and mempolicy.  May also be called holding the mmap_lockaphore for write.
> >   */
> >  static int mpol_set_nodemask(struct mempolicy *pol,
> >                    const nodemask_t *nodes, struct nodemask_scratch *nsc)
>
> :)

Haha, good catch !

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.