Re: [PATCH] drm: missing idr_preload_end in drm_gem_flink_ioctl

From: Tejun Heo
Date: Tue Feb 12 2013 - 12:28:30 EST


(cc'ing Andrew)

Hello,

On Sun, Feb 10, 2013 at 03:49:05PM +0400, Artem Savkov wrote:
> Added missing idr_preload_end calls in drm_gem_flink_ioctl().
> Without those preemption stays disabled resulting in lots of "scheduling while
> atomic" BUGs.
>
> Introduced in 4e486fae707d9a79c76f1be6dcacffc4a721cc1b (linux-next.git)
>
> Signed-off-by: Artem Savkov <artem.savkov@xxxxxxxxx>
> ---
> drivers/gpu/drm/drm_gem.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
> index 6577514..f1700ef 100644
> --- a/drivers/gpu/drm/drm_gem.c
> +++ b/drivers/gpu/drm/drm_gem.c
> @@ -456,6 +456,7 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data,
> obj->name = ret;
> args->name = (uint64_t) obj->name;
> spin_unlock(&dev->object_name_lock);
> + idr_preload_end();
>
> if (ret < 0)
> goto err;
> @@ -465,6 +466,7 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data,
> } else {
> args->name = (uint64_t) obj->name;
> spin_unlock(&dev->object_name_lock);
> + idr_preload_end();
> ret = 0;

Oops, sorry about that.

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Andrew, the original patch can be found at

http://article.gmane.org/gmane.linux.kernel/1439101/raw

Thanks.

--
tejun
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