diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-23 08:44:15 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-23 15:49:34 +0100 |
| commit | cced5e2f098d9db26cf4119e309068b79cca1274 (patch) | |
| tree | 5005a6f9052faf424014faae48c6cffe771ad93b /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | drm/i915: Protect the request->global_seqno with the engine->timeline lock (diff) | |
| download | linux-cced5e2f098d9db26cf4119e309068b79cca1274.tar.xz linux-cced5e2f098d9db26cf4119e309068b79cca1274.zip | |
drm/i915: Take a reference whilst processing the signaler request
The plan in the near-future is to allow requests to be removed from the
signaler. We can no longer then rely on holding a reference to the
request for the duration it is in the signaling tree, and instead must
obtain a reference to the request for the current operation using RCU.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170223074422.4125-10-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 04e7d5a9ee3a..fbf34af7bc77 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -242,7 +242,7 @@ struct intel_engine_cs { struct rb_root signals; /* sorted by retirement */ struct intel_wait *first_wait; /* oldest waiter by retirement */ struct task_struct *signaler; /* used for fence signalling */ - struct drm_i915_gem_request *first_signal; + struct drm_i915_gem_request __rcu *first_signal; struct timer_list fake_irq; /* used after a missed interrupt */ struct timer_list hangcheck; /* detect missed interrupts */ |