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authorTejun Heo <tj@kernel.org>2013-02-28 02:04:14 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-28 04:10:16 +0100
commitcc39a8faedc936df90cac077b2da6f420a777259 (patch)
treef226cc9cda2be4c5badd493636a8b6d0f6331b6a /drivers/gpu
parentdrm/via: convert to idr_alloc() (diff)
downloadlinux-cc39a8faedc936df90cac077b2da6f420a777259.tar.xz
linux-cc39a8faedc936df90cac077b2da6f420a777259.zip
drm/vmwgfx: convert to idr_alloc()
Convert to the much saner new idr interface. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_resource.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 16556170fb32..bc784254e78e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -177,17 +177,16 @@ int vmw_resource_alloc_id(struct vmw_resource *res)
BUG_ON(res->id != -1);
- do {
- if (unlikely(idr_pre_get(idr, GFP_KERNEL) == 0))
- return -ENOMEM;
-
- write_lock(&dev_priv->resource_lock);
- ret = idr_get_new_above(idr, res, 1, &res->id);
- write_unlock(&dev_priv->resource_lock);
+ idr_preload(GFP_KERNEL);
+ write_lock(&dev_priv->resource_lock);
- } while (ret == -EAGAIN);
+ ret = idr_alloc(idr, res, 1, 0, GFP_NOWAIT);
+ if (ret >= 0)
+ res->id = ret;
- return ret;
+ write_unlock(&dev_priv->resource_lock);
+ idr_preload_end();
+ return ret < 0 ? ret : 0;
}
/**