drm/i915: Add some extra guards in evict_vm
authorBen Widawsky <benjamin.widawsky@intel.com>
Tue, 23 Dec 2014 17:16:04 +0000 (17:16 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 6 Jan 2015 08:07:59 +0000 (09:07 +0100)
v2: Use WARN_ONs (Daniel)

Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem_evict.c

index d104c9120c4d84d44f308a245069f6005d3f0c98..e3a49d94da3a794fe3524fb79eadefa423b266b8 100644 (file)
@@ -214,6 +214,7 @@ int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle)
        struct i915_vma *vma, *next;
        int ret;
 
+       WARN_ON(!mutex_is_locked(&vm->dev->struct_mutex));
        trace_i915_gem_evict_vm(vm);
 
        if (do_idle) {
@@ -222,6 +223,8 @@ int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle)
                        return ret;
 
                i915_gem_retire_requests(vm->dev);
+
+               WARN_ON(!list_empty(&vm->active_list));
        }
 
        list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list)