diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2012-06-12 13:28:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-17 11:21:24 -0700 |
| commit | e82c95f9f0cb025da8e1af6df1c29080a78d0f84 (patch) | |
| tree | 2c4b9ff3e19e1786fab109c36ec62817591d0006 /drivers/gpu | |
| parent | cc62e8bf1f779a54369e71e665211140a254df5c (diff) | |
drm/ttm: Fix buffer object metadata accounting regression v2
commit a393c730ab69617c3291a3b0b2a228c9be2fc28c upstream.
A regression was introduced in the 3.3 rc series, commit
"drm/ttm: simplify memory accounting for ttm user v2",
causing the metadata of buffer objects created using the ttm_bo_create()
function to be accounted twice.
That causes massive leaks with the vmwgfx driver running for example
SpecViewperf Catia-03 test 2, eventually killing the app.
Furthermore, the same commit introduces a regression where
metadata accounting is leaked if a buffer object is
initialized with an illegal size. This is also fixed with this commit.
v2: Fixed an error path and removed an unused variable.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 18434186ed1e..8b73ae84efe7 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1193,6 +1193,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, (*destroy)(bo); else kfree(bo); + ttm_mem_global_free(mem_glob, acc_size); return -EINVAL; } bo->destroy = destroy; @@ -1294,22 +1295,14 @@ int ttm_bo_create(struct ttm_bo_device *bdev, struct ttm_buffer_object **p_bo) { struct ttm_buffer_object *bo; - struct ttm_mem_global *mem_glob = bdev->glob->mem_glob; size_t acc_size; int ret; - acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct ttm_buffer_object)); - ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false); - if (unlikely(ret != 0)) - return ret; - bo = kzalloc(sizeof(*bo), GFP_KERNEL); - - if (unlikely(bo == NULL)) { - ttm_mem_global_free(mem_glob, acc_size); + if (unlikely(bo == NULL)) return -ENOMEM; - } + acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct ttm_buffer_object)); ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment, buffer_start, interruptible, persistent_swap_storage, acc_size, NULL); |