From: David Rientjes <rientjes@google.com>
To: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, dave@linux.vnet.ibm.com, mhocko@suse.cz,
akpm@linux-foundation.org
Subject: Re: [PATCH v3 2/3] mm/sparse: fix possible memory leak
Date: Mon, 2 Jul 2012 14:19:39 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1207021419150.24806@chino.kir.corp.google.com> (raw)
In-Reply-To: <20120702132832.GA18567@shangw>
On Mon, 2 Jul 2012, Gavin Shan wrote:
> >> diff --git a/mm/sparse.c b/mm/sparse.c
> >> index 781fa04..a6984d9 100644
> >> --- a/mm/sparse.c
> >> +++ b/mm/sparse.c
> >> @@ -75,6 +75,20 @@ static struct mem_section noinline __init_refok *sparse_index_alloc(int nid)
> >> return section;
> >> }
> >>
> >> +static inline void __meminit sparse_index_free(struct mem_section *section)
> >> +{
> >> + unsigned long size = SECTIONS_PER_ROOT *
> >> + sizeof(struct mem_section);
> >> +
> >> + if (!section)
> >> + return;
> >> +
> >> + if (slab_is_available())
> >> + kfree(section);
> >> + else
> >> + free_bootmem(virt_to_phys(section), size);
> >
> >Eek, does that work?
> >
>
> David, I think it's working fine. If my understanding is wrong, please
> correct me. Thanks a lot :-)
>
I'm thinking it should be free_bootmem(__pa(section), size);
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next prev parent reply other threads:[~2012-07-02 21:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-02 9:28 [PATCH v3 1/3] mm/sparse: optimize sparse_index_alloc Gavin Shan
2012-07-02 9:28 ` [PATCH v3 2/3] mm/sparse: fix possible memory leak Gavin Shan
2012-07-02 9:43 ` Michal Hocko
2012-07-02 13:40 ` Gavin Shan
2012-07-02 15:46 ` Michal Hocko
2012-07-03 3:38 ` Gavin Shan
2012-07-03 12:51 ` Michal Hocko
2012-07-02 11:04 ` David Rientjes
2012-07-02 13:28 ` Gavin Shan
2012-07-02 21:19 ` David Rientjes [this message]
2012-07-03 1:19 ` Gavin Shan
2012-07-02 9:28 ` [PATCH v3 3/3] mm/sparse: more check on mem_section number Gavin Shan
2012-07-02 11:05 ` David Rientjes
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