xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm: remove dev->vma_count

Browse Source 
This is just used for a debugfs file, and we can easily reconstruct
this number by just walking the list twice. Which isn't really bad for
a debugfs file anyway.

So let's rip this out.

There's the other issue that the dev->vmalist itself is a bit useless,
since that can be reconstructed with all the memory mapping
information from proc. But remove that is a different topic entirely.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Daniel Vetter
2013-12-11 11:35:10 +01:00
committed by Dave Airlie
parent 5952fba501
commit 99c09e745d
4 changed files with 7 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/drm_vm.c
View File

@@ -220,7 +220,6 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
DRM_DEBUG("0x%08lx,0x%08lx\n",
vma->vm_start, vma->vm_end - vma->vm_start);
atomic_dec(&dev->vma_count);
map = vma->vm_private_data;
@@ -405,7 +404,6 @@ void drm_vm_open_locked(struct drm_device *dev,
DRM_DEBUG("0x%08lx,0x%08lx\n",
vma->vm_start, vma->vm_end - vma->vm_start);
atomic_inc(&dev->vma_count);
vma_entry = kmalloc(sizeof(*vma_entry), GFP_KERNEL);
if (vma_entry) {
@@ -433,7 +431,6 @@ void drm_vm_close_locked(struct drm_device *dev,
DRM_DEBUG("0x%08lx,0x%08lx\n",
vma->vm_start, vma->vm_end - vma->vm_start);
atomic_dec(&dev->vma_count);
list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
if (pt->vma == vma) {