Having discussed with Matthew offlist, I think we've come to the
following conclusion - there's a number of drivers that buggily
ignore vm_pgoff.
So, what I proposed is:
static int __vm_insert_range(struct vm_struct *vma, struct page *pages,
size_t num, unsigned long
On Mon, Dec 24, 2018 at 06:55:31PM +0530, Souptick Joarder wrote:
> Convert to use vm_insert_range() to map range of kernel
> memory to user vma.
>
> Signed-off-by: Souptick Joarder
> Reviewed-by: Matthew Wilcox
> ---
> drivers/iommu/dma-iommu.c | 13 +++--
> 1 file changed, 3 insertion
Convert to use vm_insert_range() to map range of kernel
memory to user vma.
Signed-off-by: Souptick Joarder
Reviewed-by: Matthew Wilcox
---
drivers/iommu/dma-iommu.c | 13 +++--
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-
Previouly drivers have their own way of mapping range of
kernel pages/memory into user vma and this was done by
invoking vm_insert_page() within a loop.
As this pattern is common across different drivers, it can
be generalized by creating a new function and use it across
the drivers.
vm_insert_ra
v1 -> v2:
Address review comment on mm/memory.c. Add EXPORT_SYMBOL
for vm_insert_range and corrected the documentation part
for this API.
In drivers/gpu/drm/xen/xen_drm_front_gem.c, replace err
with ret as suggested.
In drivers/iommu/dma-iommu.c, ha
