Re: [PATCH] mm: Use strtobool for param parsing

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



* Andrew Morton (akpm@xxxxxxxxxxxxxxxxxxxx) wrote:
> On Sun, 27 Feb 2022 18:10:39 +0000 "Dr. David Alan Gilbert" <linux@xxxxxxxxxxx> wrote:
> 
> > Use strtobool rather than open coding "on" and "off" parsing in
> > mm/hugetlb_vmemmap.c and mm/page_table_check.c.
> > 
> > Signed-off-by: Dr. David Alan Gilbert <linux@xxxxxxxxxxx>
> > ---
> >  mm/hugetlb_vmemmap.c  | 12 +-----------
> >  mm/page_table_check.c | 10 +---------
> >  2 files changed, 2 insertions(+), 20 deletions(-)
> > 
> > diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
> > index c540c21e26f5b..919411386e547 100644
> > --- a/mm/hugetlb_vmemmap.c
> > +++ b/mm/hugetlb_vmemmap.c
> > @@ -192,17 +192,7 @@ static int __init early_hugetlb_free_vmemmap_param(char *buf)
> >  		return 0;
> >  	}
> >  
> > -	if (!buf)
> > -		return -EINVAL;
> > -
> > -	if (!strcmp(buf, "on"))
> > -		hugetlb_free_vmemmap_enabled = true;
> > -	else if (!strcmp(buf, "off"))
> > -		hugetlb_free_vmemmap_enabled = false;
> > -	else
> > -		return -EINVAL;
> > -
> > -	return 0;
> > +	return strtobool(buf, &hugetlb_free_vmemmap_enabled);
> >  }
> >  early_param("hugetlb_free_vmemmap", early_hugetlb_free_vmemmap_param);
> 
> This part falls afoul of the changes in
> https://lkml.kernel.org/r/20211101031651.75851-3-songmuchun@xxxxxxxxxxxxx

Hmm, yes that's quite different.

> > diff --git a/mm/page_table_check.c b/mm/page_table_check.c
> > index 3763bd077861a..2458281bff893 100644
> > --- a/mm/page_table_check.c
> > +++ b/mm/page_table_check.c
> > @@ -23,15 +23,7 @@ EXPORT_SYMBOL(page_table_check_disabled);
> >  
> >  static int __init early_page_table_check_param(char *buf)
> >  {
> > -	if (!buf)
> > -		return -EINVAL;
> > -
> > -	if (strcmp(buf, "on") == 0)
> > -		__page_table_check_enabled = true;
> > -	else if (strcmp(buf, "off") == 0)
> > -		__page_table_check_enabled = false;
> > -
> > -	return 0;
> > +	return strtobool(buf, &__page_table_check_enabled);
> >  }
> 
> But this works OK.

Thanks for taking it.

Dave

-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
\        dave @ treblig.org |                               | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux