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authorChris Wilson <chris@chris-wilson.co.uk>2010-09-27 22:28:30 +0200
committerDave Airlie <airlied@redhat.com>2010-09-28 01:14:34 +0200
commit31dfbc93923c0aaa0440b809f80ff2830c6a531a (patch)
tree9527de1c84f266ea23d6009c454d7cf1d1769889 /drivers/gpu/drm/drm_vm.c
parentdrm/radeon/kms: fix up encoder info messages for DFP6 (diff)
downloadlinux-31dfbc93923c0aaa0440b809f80ff2830c6a531a.tar.xz
linux-31dfbc93923c0aaa0440b809f80ff2830c6a531a.zip
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.c28
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);
}