diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-28 00:28:30 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-09-28 03:14:34 +0400 |
| commit | 31dfbc93923c0aaa0440b809f80ff2830c6a531a (patch) | |
| tree | 9527de1c84f266ea23d6009c454d7cf1d1769889 /drivers/gpu/drm/drm_vm.c | |
| parent | 73758a5d51280ca0613b8380fc07351f4d64f9c8 (diff) | |
| download | linux-31dfbc93923c0aaa0440b809f80ff2830c6a531a.tar.xz | |
drm: Prune GEM vma entries
Hook the GEM vm open/close ops into the generic drm vm open/close so
that the private vma entries are created and destroy appropriately.
Fixes the leak of the drm_vma_entries during the lifetime of the filp.
Reported-by: Matt Mackall <mpm@selenic.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_vm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_vm.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index fda67468e603..5df450683aab 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -433,15 +433,7 @@ static void drm_vm_open(struct vm_area_struct *vma) mutex_unlock(&dev->struct_mutex); } -/** - * \c close method for all virtual memory types. - * - * \param vma virtual memory area. - * - * Search the \p vma private data entry in drm_device::vmalist, unlink it, and - * free it. - */ -static void drm_vm_close(struct vm_area_struct *vma) +void drm_vm_close_locked(struct vm_area_struct *vma) { struct drm_file *priv = vma->vm_file->private_data; struct drm_device *dev = priv->minor->dev; @@ -451,7 +443,6 @@ static void drm_vm_close(struct vm_area_struct *vma) vma->vm_start, vma->vm_end - vma->vm_start); atomic_dec(&dev->vma_count); - mutex_lock(&dev->struct_mutex); list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { if (pt->vma == vma) { list_del(&pt->head); @@ -459,6 +450,23 @@ static void drm_vm_close(struct vm_area_struct *vma) break; } } +} + +/** + * \c close method for all virtual memory types. + * + * \param vma virtual memory area. + * + * Search the \p vma private data entry in drm_device::vmalist, unlink it, and + * free it. + */ +static void drm_vm_close(struct vm_area_struct *vma) +{ + struct drm_file *priv = vma->vm_file->private_data; + struct drm_device *dev = priv->minor->dev; + + mutex_lock(&dev->struct_mutex); + drm_vm_close_locked(vma); mutex_unlock(&dev->struct_mutex); } |