lkml.org 
[lkml]   [2021]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v2 15/22] misc/sgi-gru/grufault: Use vma_lookup() in gru_find_vma()
    Date
    Use vma_lookup() to find the VMA at a specific address.  As vma_lookup()
    will return NULL if the address is not within any VMA, the start address
    no longer needs to be validated.

    Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
    Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
    Acked-by: David Hildenbrand <david@redhat.com>
    Acked-by: Davidlohr Bueso <dbueso@suse.de>
    ---
    drivers/misc/sgi-gru/grufault.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
    index 723825524ea0..d7ef61e602ed 100644
    --- a/drivers/misc/sgi-gru/grufault.c
    +++ b/drivers/misc/sgi-gru/grufault.c
    @@ -49,8 +49,8 @@ struct vm_area_struct *gru_find_vma(unsigned long vaddr)
    {
    struct vm_area_struct *vma;

    - vma = find_vma(current->mm, vaddr);
    - if (vma && vma->vm_start <= vaddr && vma->vm_ops == &gru_vm_ops)
    + vma = vma_lookup(current->mm, vaddr);
    + if (vma && vma->vm_ops == &gru_vm_ops)
    return vma;
    return NULL;
    }
    --
    2.30.2
    \
     
     \ /
      Last update: 2021-05-21 19:49    [W:4.416 / U:0.396 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site