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mm: use vmf->address instead of of vmf->virtual_address

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Every single user of vmf->virtual_address typed that entry to unsigned
long before doing anything with it so the type of virtual_address does
not really provide us any additional safety.  Just use masked
vmf->address which already has the appropriate type.

Link: http://lkml.kernel.org/r/1479460644-25076-3-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara
2016-12-14 15:07:01 -08:00
committed by Linus Torvalds
parent 82b0f8c39a
commit 1a29d85eb0
27 changed files with 57 additions and 79 deletions
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10
drivers/gpu/drm/drm_vm.c
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@@ -124,8 +124,7 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
* Using vm_pgoff as a selector forces us to use this unusual
* addressing scheme.
*/
resource_size_t offset = (unsigned long)vmf->virtual_address -
vma->vm_start;
resource_size_t offset = vmf->address - vma->vm_start;
resource_size_t baddr = map->offset + offset;
struct drm_agp_mem *agpmem;
struct page *page;
@@ -195,7 +194,7 @@ static int drm_do_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
if (!map)
return VM_FAULT_SIGBUS; /* Nothing allocated */
offset = (unsigned long)vmf->virtual_address - vma->vm_start;
offset = vmf->address - vma->vm_start;
i = (unsigned long)map->handle + offset;
page = vmalloc_to_page((void *)i);
if (!page)
@@ -301,7 +300,8 @@ static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
if (!dma->pagelist)
return VM_FAULT_SIGBUS; /* Nothing allocated */
offset = (unsigned long)vmf->virtual_address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
offset = vmf->address - vma->vm_start;
/* vm_[pg]off[set] should be 0 */
page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */
page = virt_to_page((void *)dma->pagelist[page_nr]);
@@ -337,7 +337,7 @@ static int drm_do_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
if (!entry->pagelist)
return VM_FAULT_SIGBUS; /* Nothing allocated */
offset = (unsigned long)vmf->virtual_address - vma->vm_start;
offset = vmf->address - vma->vm_start;
map_offset = map->offset - (unsigned long)dev->sg->virtual;
page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT);
page = entry->pagelist[page_offset];