linux-kernel - Re: [PATCH] vmalloc.c: fix vmap_page

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Date:	Wed, 08 Jul 2009 00:19:49 +0800
From:	"Figo.zhang" <figo1802@...il.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] vmalloc.c: fix vmap_page_range() return

On Tue, 2009-07-07 at 18:00 +0800, Figo.zhang wrote:
> vmap_page_range() would never return a positive number.

hmm, it is my mistake. vmap_pud_range() will return the succeed mapped
page number.

Best,
Figo.zhang


> 
> Signed-off-by: Figo.zhang <figo1802@...il.com>
> --- 
> mm/vmalloc.c |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
> 
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index f8189a4..bbd312d 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -1109,10 +1109,6 @@ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
>  	int err;
>  
>  	err = vmap_page_range(addr, end, prot, *pages);
> -	if (err > 0) {
> -		*pages += err;
> -		err = 0;
> -	}
>  
>  	return err;
>  }
> 

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