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Groups > linux.kernel > #1404838 > unrolled thread

[PATCH] xen/privcmd: use vma_pages().

Started byMuhammad Falak R Wani <falakreyaz@gmail.com>
First post2016-05-21 15:10 +0200
Last post2016-05-24 02:10 +0200
Articles 3 — 2 participants

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  [PATCH] xen/privcmd: use vma_pages(). Muhammad Falak R Wani <falakreyaz@gmail.com> - 2016-05-21 15:10 +0200
    Re: [PATCH] xen/privcmd: use vma_pages(). Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-05-23 22:30 +0200
      Re: [PATCH] xen/privcmd: use vma_pages(). Muhammad Falak R Wani <falakreyaz@gmail.com> - 2016-05-24 02:10 +0200

#1404838 — [PATCH] xen/privcmd: use vma_pages().

FromMuhammad Falak R Wani <falakreyaz@gmail.com>
Date2016-05-21 15:10 +0200
Subject[PATCH] xen/privcmd: use vma_pages().
Message-ID<rBePf-3U4-15@gated-at.bofh.it>
Replace explicit computation of vma page count by a call to
vma_pages()

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
---
 drivers/xen/privcmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index df2e6f7..702040f 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -582,7 +582,7 @@ static long privcmd_ioctl(struct file *file,
 static void privcmd_close(struct vm_area_struct *vma)
 {
 	struct page **pages = vma->vm_private_data;
-	int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	int numpgs = vma_pages(vma);
 	int numgfns = (vma->vm_end - vma->vm_start) >> XEN_PAGE_SHIFT;
 	int rc;
 
-- 
1.9.1

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#1405609

FromBoris Ostrovsky <boris.ostrovsky@oracle.com>
Date2016-05-23 22:30 +0200
Message-ID<rC4E9-27h-9@gated-at.bofh.it>
In reply to#1404838
On 05/21/2016 09:09 AM, Muhammad Falak R Wani wrote:
> Replace explicit computation of vma page count by a call to
> vma_pages()
>
> Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
> ---
>  drivers/xen/privcmd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
> index df2e6f7..702040f 100644
> --- a/drivers/xen/privcmd.c
> +++ b/drivers/xen/privcmd.c
> @@ -582,7 +582,7 @@ static long privcmd_ioctl(struct file *file,
>  static void privcmd_close(struct vm_area_struct *vma)
>  {
>  	struct page **pages = vma->vm_private_data;
> -	int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
> +	int numpgs = vma_pages(vma);
>  	int numgfns = (vma->vm_end - vma->vm_start) >> XEN_PAGE_SHIFT;
>  	int rc;
>  

Can you combine all three patches into a single one?

Thanks.
-boris

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#1405732

FromMuhammad Falak R Wani <falakreyaz@gmail.com>
Date2016-05-24 02:10 +0200
Message-ID<rC853-4h8-13@gated-at.bofh.it>
In reply to#1405609
On Mon, May 23, 2016 at 04:26:37PM -0400, Boris Ostrovsky wrote:
> On 05/21/2016 09:09 AM, Muhammad Falak R Wani wrote:
> > Replace explicit computation of vma page count by a call to
> > vma_pages()
> >
> 
> Can you combine all three patches into a single one?
> 
> Thanks.
> -boris
> 

Sure, I have sent V2 with the required changes. :)

-mfrw

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