For largely legacy reasons, a global mutex (drm_global_mutex) is taken
around open/close of the drm_device, including serialising the filp
release. For drivers with their own fine grained locking, such global
coordination is a hindrance, albeit off the common hot paths.
References: 7a2c65dd32b1 ("drm: Release filp before global lock")
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Alex Deucher <alexdeuc...@gmail.com>
Cc: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 94e2fd758e01..9bce9cfa982e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1351,7 +1351,7 @@ static const struct file_operations
amdgpu_driver_kms_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.flush = amdgpu_flush,
- .release = drm_release,
+ .release = drm_release_noglobal,
.unlocked_ioctl = amdgpu_drm_ioctl,
.mmap = amdgpu_mmap,
.poll = drm_poll,
--
2.25.0
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