[Intel-gfx] [PATCH 2/5] drm/atomic: Convert atomic ioctl locking to interruptible.
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Thu Jul 27 12:58:37 UTC 2017
Pass DRM_MODESET_ACQUIRE_INTERRUPTIBLE to acquire_init, and
handle drm_modeset_backoff which can now fail by returning the error.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
drivers/gpu/drm/drm_atomic.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 01192dd3ed79..4a1ff90fd73e 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -2217,7 +2217,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
(arg->flags & DRM_MODE_PAGE_FLIP_EVENT))
return -EINVAL;
- drm_modeset_acquire_init(&ctx, 0);
+ drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
state = drm_atomic_state_alloc(dev);
if (!state)
@@ -2327,8 +2327,9 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
if (ret == -EDEADLK) {
drm_atomic_state_clear(state);
- drm_modeset_backoff(&ctx);
- goto retry;
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry;
}
drm_atomic_state_put(state);
--
2.11.0
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