* user space virtual address to a vm_area_struct
@ 2002-10-16 9:10 Melkor Ainur
2002-10-16 11:13 ` Brian Gerst
0 siblings, 1 reply; 2+ messages in thread
From: Melkor Ainur @ 2002-10-16 9:10 UTC (permalink / raw)
To: linux-kernel
Hi,
Is there a recommended way for a driver to take an
application provided virtual address while executing
in the syscall context of that same application and
find the corresponding vm_area_struct (if exists for
that address) that spans that virtual address?
Melkor
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: user space virtual address to a vm_area_struct
2002-10-16 9:10 user space virtual address to a vm_area_struct Melkor Ainur
@ 2002-10-16 11:13 ` Brian Gerst
0 siblings, 0 replies; 2+ messages in thread
From: Brian Gerst @ 2002-10-16 11:13 UTC (permalink / raw)
To: Melkor Ainur; +Cc: linux-kernel
Melkor Ainur wrote:
> Hi,
>
> Is there a recommended way for a driver to take an
> application provided virtual address while executing
> in the syscall context of that same application and
> find the corresponding vm_area_struct (if exists for
> that address) that spans that virtual address?
>
> Melkor
down_read(current->mm->mmap_sem);
vma = find_vma(current->mm, address);
...
up_read(current->mm->mmap_sem);
--
Brian Gerst
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