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Date:   Wed, 20 Mar 2019 16:00:08 +0800
From:   Baoquan He <bhe@redhat.com>
To:     Mike Rapoport <rppt@linux.ibm.com>
Cc:     linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
        pasha.tatashin@oracle.com, mhocko@suse.com,
        rppt@linux.vnet.ibm.com, richard.weiyang@gmail.com,
        linux-mm@kvack.org
Subject: Re: [PATCH 1/3] mm/sparse: Clean up the obsolete code comment
Message-ID: <20190320080008.GK18740@MiWiFi-R3L-srv>
References: <20190320073540.12866-1-bhe@redhat.com>
 <20190320075058.GB13626@rapoport-lnx>
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On 03/20/19 at 09:50am, Mike Rapoport wrote:
> Hi,
> 
> On Wed, Mar 20, 2019 at 03:35:38PM +0800, Baoquan He wrote:
> > The code comment above sparse_add_one_section() is obsolete and
> > incorrect, clean it up and write new one.
> > 
> > Signed-off-by: Baoquan He <bhe@redhat.com>
> > ---
> >  mm/sparse.c | 9 ++++++---
> >  1 file changed, 6 insertions(+), 3 deletions(-)
> > 
> > diff --git a/mm/sparse.c b/mm/sparse.c
> > index 77a0554fa5bd..0a0f82c5d969 100644
> > --- a/mm/sparse.c
> > +++ b/mm/sparse.c
> > @@ -674,9 +674,12 @@ static void free_map_bootmem(struct page *memmap)
> >  #endif /* CONFIG_SPARSEMEM_VMEMMAP */
> > 
> >  /*
> > - * returns the number of sections whose mem_maps were properly
> > - * set.  If this is <=0, then that means that the passed-in
> > - * map was not consumed and must be freed.
> > + * sparse_add_one_section - add a memory section
> 
> Please mention that this is only intended for memory hotplug

Will do. Thanks for reviewing.

> 
> > + * @nid:	The node to add section on
> > + * @start_pfn:	start pfn of the memory range
> > + * @altmap:	device page map
> > + *
> > + * Return 0 on success and an appropriate error code otherwise.
> 
> s/Return/Return:/ please

Thanks, will change.

> 
> >   */
> >  int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
> >  				     struct vmem_altmap *altmap)
> > -- 
> > 2.17.2
> > 
> 
> -- 
> Sincerely yours,
> Mike.
>