[PATCH 7/7] dma-buf: drop the _rcu postfix on function names

Christian König ckoenig.leichtzumerken at gmail.com
Sun Jun 6 09:08:33 UTC 2021


Am 02.06.21 um 22:34 schrieb Jason Ekstrand:
> On Wed, Jun 2, 2021 at 6:17 AM Christian König
> <ckoenig.leichtzumerken at gmail.com> wrote:
>> The functions can be called both in _rcu context as well
>> as while holding the lock.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>>   drivers/dma-buf/dma-buf.c                     |  3 +--
>>   drivers/dma-buf/dma-resv.c                    | 24 +++++++++----------
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_display.c   |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c   |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c       |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c       |  4 ++--
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c        |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_object.c    |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c       |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c        |  8 +++----
>>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  2 +-
>>   drivers/gpu/drm/drm_gem.c                     |  4 ++--
>>   drivers/gpu/drm/etnaviv/etnaviv_gem.c         |  4 ++--
>>   drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c  |  2 +-
>>   drivers/gpu/drm/i915/dma_resv_utils.c         |  2 +-
>>   drivers/gpu/drm/i915/gem/i915_gem_busy.c      |  2 +-
>>   .../gpu/drm/i915/gem/i915_gem_execbuffer.c    |  2 +-
>>   drivers/gpu/drm/i915/gem/i915_gem_userptr.c   |  2 +-
>>   drivers/gpu/drm/i915/gem/i915_gem_wait.c      |  4 ++--
>>   drivers/gpu/drm/i915/i915_request.c           |  2 +-
>>   drivers/gpu/drm/i915/i915_sw_fence.c          |  2 +-
>>   drivers/gpu/drm/msm/msm_gem.c                 |  2 +-
>>   drivers/gpu/drm/nouveau/nouveau_gem.c         |  2 +-
>>   drivers/gpu/drm/panfrost/panfrost_drv.c       |  2 +-
>>   drivers/gpu/drm/radeon/radeon_gem.c           |  6 ++---
>>   drivers/gpu/drm/radeon/radeon_mn.c            |  2 +-
>>   drivers/gpu/drm/ttm/ttm_bo.c                  | 12 +++++-----
>>   drivers/gpu/drm/vgem/vgem_fence.c             |  2 +-
>>   drivers/gpu/drm/virtio/virtgpu_ioctl.c        |  4 ++--
>>   drivers/gpu/drm/vmwgfx/vmwgfx_bo.c            |  2 +-
>>   include/linux/dma-resv.h                      | 17 ++++---------
>>   31 files changed, 60 insertions(+), 70 deletions(-)
>>
>> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
>> index 4d0ddc712f1e..f92931d8db51 100644
>> --- a/drivers/dma-buf/dma-buf.c
>> +++ b/drivers/dma-buf/dma-buf.c
>> @@ -1147,8 +1147,7 @@ static int __dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
>>          long ret;
>>
>>          /* Wait on any implicit rendering fences */
>> -       ret = dma_resv_wait_timeout_rcu(resv, write, true,
>> -                                                 MAX_SCHEDULE_TIMEOUT);
>> +       ret = dma_resv_wait_timeout(resv, write, true, MAX_SCHEDULE_TIMEOUT);
>>          if (ret < 0)
>>                  return ret;
>>
>> diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
>> index b1a1a31dc009..74fe64dc1ce3 100644
>> --- a/drivers/dma-buf/dma-resv.c
>> +++ b/drivers/dma-buf/dma-resv.c
>> @@ -393,7 +393,7 @@ int dma_resv_copy_fences(struct dma_resv *dst, struct dma_resv *src)
>>   EXPORT_SYMBOL(dma_resv_copy_fences);
>>
>>   /**
>> - * dma_resv_get_fences_rcu - Get an object's shared and exclusive
>> + * dma_resv_get_fences - Get an object's shared and exclusive
>>    * fences without update side lock held
>>    * @obj: the reservation object
>>    * @pfence_excl: the returned exclusive fence (or NULL)
>> @@ -405,10 +405,9 @@ EXPORT_SYMBOL(dma_resv_copy_fences);
>>    * exclusive fence is not specified the fence is put into the array of the
>>    * shared fences as well. Returns either zero or -ENOMEM.
>>    */
>> -int dma_resv_get_fences_rcu(struct dma_resv *obj,
>> -                           struct dma_fence **pfence_excl,
>> -                           unsigned int *pshared_count,
>> -                           struct dma_fence ***pshared)
>> +int dma_resv_get_fences(struct dma_resv *obj, struct dma_fence **pfence_excl,
>> +                       unsigned int *pshared_count,
>> +                       struct dma_fence ***pshared)
>>   {
>>          struct dma_fence **shared = NULL;
>>          struct dma_fence *fence_excl;
>> @@ -491,10 +490,10 @@ int dma_resv_get_fences_rcu(struct dma_resv *obj,
>>          *pshared = shared;
>>          return ret;
>>   }
>> -EXPORT_SYMBOL_GPL(dma_resv_get_fences_rcu);
>> +EXPORT_SYMBOL_GPL(dma_resv_get_fences);
>>
>>   /**
>> - * dma_resv_wait_timeout_rcu - Wait on reservation's objects
>> + * dma_resv_wait_timeout - Wait on reservation's objects
>>    * shared and/or exclusive fences.
>>    * @obj: the reservation object
>>    * @wait_all: if true, wait on all fences, else wait on just exclusive fence
>> @@ -505,9 +504,8 @@ EXPORT_SYMBOL_GPL(dma_resv_get_fences_rcu);
>>    * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
>>    * greater than zer on success.
>>    */
>> -long dma_resv_wait_timeout_rcu(struct dma_resv *obj,
>> -                              bool wait_all, bool intr,
>> -                              unsigned long timeout)
>> +long dma_resv_wait_timeout(struct dma_resv *obj, bool wait_all, bool intr,
>> +                          unsigned long timeout)
>>   {
>>          long ret = timeout ? timeout : 1;
>>          unsigned int seq, shared_count;
>> @@ -579,7 +577,7 @@ long dma_resv_wait_timeout_rcu(struct dma_resv *obj,
>>          rcu_read_unlock();
>>          goto retry;
>>   }
>> -EXPORT_SYMBOL_GPL(dma_resv_wait_timeout_rcu);
>> +EXPORT_SYMBOL_GPL(dma_resv_wait_timeout);
>>
>>
>>   static inline int dma_resv_test_signaled_single(struct dma_fence *passed_fence)
>> @@ -608,7 +606,7 @@ static inline int dma_resv_test_signaled_single(struct dma_fence *passed_fence)
>>    * RETURNS
>>    * true if all fences signaled, else false
>>    */
>> -bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all)
>> +bool dma_resv_test_signaled(struct dma_resv *obj, bool test_all)
>>   {
>>          unsigned int seq, shared_count;
>>          int ret;
>> @@ -657,7 +655,7 @@ bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all)
>>          rcu_read_unlock();
>>          return ret;
>>   }
>> -EXPORT_SYMBOL_GPL(dma_resv_test_signaled_rcu);
>> +EXPORT_SYMBOL_GPL(dma_resv_test_signaled);
>>
>>   #if IS_ENABLED(CONFIG_LOCKDEP)
>>   static int __init dma_resv_lockdep(void)
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> index 49f73b5b89b0..004d01d2e1d7 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> @@ -203,7 +203,7 @@ int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
>>                  goto unpin;
>>          }
>>
>> -       r = dma_resv_get_fences_rcu(new_abo->tbo.base.resv, &work->excl,
>> +       r = dma_resv_get_fences(new_abo->tbo.base.resv, &work->excl,
>>                                                &work->shared_count,
>>                                                &work->shared);
>>          if (unlikely(r != 0)) {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
>> index 3b13c8a38c4e..615be1697d49 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
>> @@ -52,7 +52,7 @@ __dma_resv_make_exclusive(struct dma_resv *obj)
>>          if (!dma_resv_shared(obj)) /* no shared fences to convert */
>>                  return 0;
>>
>> -       r = dma_resv_get_fences_rcu(obj, NULL, &count, &fences);
>> +       r = dma_resv_get_fences(obj, NULL, &count, &fences);
>>          if (r)
>>                  return r;
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
>> index cd5146fa6fb6..dafc96032d7d 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
>> @@ -526,7 +526,7 @@ int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
>>                  return -ENOENT;
>>          }
>>          robj = gem_to_amdgpu_bo(gobj);
>> -       ret = dma_resv_wait_timeout_rcu(robj->tbo.base.resv, true, true,
>> +       ret = dma_resv_wait_timeout(robj->tbo.base.resv, true, true,
>>                                                    timeout);
>>
>>          /* ret == 0 means not signaled,
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
>> index b4971e90b98c..65a3422ec078 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
>> @@ -112,7 +112,7 @@ void amdgpu_pasid_free_delayed(struct dma_resv *resv,
>>          unsigned count;
>>          int r;
>>
>> -       r = dma_resv_get_fences_rcu(resv, NULL, &count, &fences);
>> +       r = dma_resv_get_fences(resv, NULL, &count, &fences);
>>          if (r)
>>                  goto fallback;
>>
>> @@ -156,7 +156,7 @@ void amdgpu_pasid_free_delayed(struct dma_resv *resv,
>>          /* Not enough memory for the delayed delete, as last resort
>>           * block for all the fences to complete.
>>           */
>> -       dma_resv_wait_timeout_rcu(resv, true, false,
>> +       dma_resv_wait_timeout(resv, true, false,
>>                                              MAX_SCHEDULE_TIMEOUT);
>>          amdgpu_pasid_free(pasid);
>>   }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
>> index 2741c28ff1b5..86de11a86a3e 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
>> @@ -75,7 +75,7 @@ static bool amdgpu_mn_invalidate_gfx(struct mmu_interval_notifier *mni,
>>
>>          mmu_interval_set_seq(mni, cur_seq);
>>
>> -       r = dma_resv_wait_timeout_rcu(bo->tbo.base.resv, true, false,
>> +       r = dma_resv_wait_timeout(bo->tbo.base.resv, true, false,
>>                                        MAX_SCHEDULE_TIMEOUT);
>>          mutex_unlock(&adev->notifier_lock);
>>          if (r <= 0)
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> index 03c6b63d1d54..821dec6d2f73 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> @@ -756,7 +756,7 @@ int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
>>                  return 0;
>>          }
>>
>> -       r = dma_resv_wait_timeout_rcu(bo->tbo.base.resv, false, false,
>> +       r = dma_resv_wait_timeout(bo->tbo.base.resv, false, false,
>>                                                  MAX_SCHEDULE_TIMEOUT);
>>          if (r < 0)
>>                  return r;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
>> index 82f0542c7792..3773f5ff6f0e 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
>> @@ -1126,7 +1126,7 @@ static int amdgpu_uvd_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
>>          ib->length_dw = 16;
>>
>>          if (direct) {
>> -               r = dma_resv_wait_timeout_rcu(bo->tbo.base.resv,
>> +               r = dma_resv_wait_timeout(bo->tbo.base.resv,
>>                                                          true, false,
>>                                                          msecs_to_jiffies(10));
> Some kernel CI thing (not sure who runs it) is likely going to
> complain at you about messing up indentation.  I don't know how much
> you care.  I went ahead and fixed it all in my version of this change
> but it's annoying and half of them were indented wrong before this
> change so I'm a bit Meh.

Yeah, we messed those up in the reservation_object -> dma_resv rename 
already.

I've just gone over them and fixed the indentation halve automated once 
more.

> Either way, assuming you've done a grep for the _rcu versions to
> ensure you haven't missed any and assuming it all compiles,

That was a completely automated rename anyway. Could be that I didn't 
catch all the subdirs where dma_resv object is used, but that is rather 
unlikely.

> Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>

Thanks going to push that now,
Christian.

>
>>                  if (r == 0)
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> index bcfd4a8d0288..da716aa38085 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> @@ -2022,13 +2022,13 @@ static void amdgpu_vm_prt_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
>>          unsigned i, shared_count;
>>          int r;
>>
>> -       r = dma_resv_get_fences_rcu(resv, &excl,
>> +       r = dma_resv_get_fences(resv, &excl,
>>                                                &shared_count, &shared);
>>          if (r) {
>>                  /* Not enough memory to grab the fence list, as last resort
>>                   * block for all the fences to complete.
>>                   */
>> -               dma_resv_wait_timeout_rcu(resv, true, false,
>> +               dma_resv_wait_timeout(resv, true, false,
>>                                                      MAX_SCHEDULE_TIMEOUT);
>>                  return;
>>          }
>> @@ -2640,7 +2640,7 @@ bool amdgpu_vm_evictable(struct amdgpu_bo *bo)
>>                  return true;
>>
>>          /* Don't evict VM page tables while they are busy */
>> -       if (!dma_resv_test_signaled_rcu(bo->tbo.base.resv, true))
>> +       if (!dma_resv_test_signaled(bo->tbo.base.resv, true))
>>                  return false;
>>
>>          /* Try to block ongoing updates */
>> @@ -2820,7 +2820,7 @@ void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size,
>>    */
>>   long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout)
>>   {
>> -       timeout = dma_resv_wait_timeout_rcu(vm->root.base.bo->tbo.base.resv,
>> +       timeout = dma_resv_wait_timeout(vm->root.base.bo->tbo.base.resv,
>>                                              true, true, timeout);
>>          if (timeout <= 0)
>>                  return timeout;
>> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> index 3267eb2e35dd..1633afd3c03b 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> @@ -8400,7 +8400,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
>>                   * deadlock during GPU reset when this fence will not signal
>>                   * but we hold reservation lock for the BO.
>>                   */
>> -               r = dma_resv_wait_timeout_rcu(abo->tbo.base.resv, true,
>> +               r = dma_resv_wait_timeout(abo->tbo.base.resv, true,
>>                                                          false,
>>                                                          msecs_to_jiffies(5000));
>>                  if (unlikely(r <= 0))
>> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
>> index 263b4fb03303..11770da97dc0 100644
>> --- a/drivers/gpu/drm/drm_gem.c
>> +++ b/drivers/gpu/drm/drm_gem.c
>> @@ -770,7 +770,7 @@ long drm_gem_dma_resv_wait(struct drm_file *filep, u32 handle,
>>                  return -EINVAL;
>>          }
>>
>> -       ret = dma_resv_wait_timeout_rcu(obj->resv, wait_all,
>> +       ret = dma_resv_wait_timeout(obj->resv, wait_all,
>>                                                    true, timeout);
>>          if (ret == 0)
>>                  ret = -ETIME;
>> @@ -1380,7 +1380,7 @@ int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
>>                  return drm_gem_fence_array_add(fence_array, fence);
>>          }
>>
>> -       ret = dma_resv_get_fences_rcu(obj->resv, NULL,
>> +       ret = dma_resv_get_fences(obj->resv, NULL,
>>                                                  &fence_count, &fences);
>>          if (ret || !fence_count)
>>                  return ret;
>> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
>> index 4d43b8630f0e..e3c209628688 100644
>> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
>> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
>> @@ -390,13 +390,13 @@ int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
>>          }
>>
>>          if (op & ETNA_PREP_NOSYNC) {
>> -               if (!dma_resv_test_signaled_rcu(obj->resv,
>> +               if (!dma_resv_test_signaled(obj->resv,
>>                                                            write))
>>                          return -EBUSY;
>>          } else {
>>                  unsigned long remain = etnaviv_timeout_to_jiffies(timeout);
>>
>> -               ret = dma_resv_wait_timeout_rcu(obj->resv,
>> +               ret = dma_resv_wait_timeout(obj->resv,
>>                                                            write, true, remain);
>>                  if (ret <= 0)
>>                          return ret == 0 ? -ETIMEDOUT : ret;
>> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> index c942d2a8c252..9cc36bbc2502 100644
>> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> @@ -189,7 +189,7 @@ static int submit_fence_sync(struct etnaviv_gem_submit *submit)
>>                          continue;
>>
>>                  if (bo->flags & ETNA_SUBMIT_BO_WRITE) {
>> -                       ret = dma_resv_get_fences_rcu(robj, &bo->excl,
>> +                       ret = dma_resv_get_fences(robj, &bo->excl,
>>                                                                  &bo->nr_shared,
>>                                                                  &bo->shared);
>>                          if (ret)
>> diff --git a/drivers/gpu/drm/i915/dma_resv_utils.c b/drivers/gpu/drm/i915/dma_resv_utils.c
>> index 9e508e7d4629..7df91b7e4ca8 100644
>> --- a/drivers/gpu/drm/i915/dma_resv_utils.c
>> +++ b/drivers/gpu/drm/i915/dma_resv_utils.c
>> @@ -10,7 +10,7 @@
>>   void dma_resv_prune(struct dma_resv *resv)
>>   {
>>          if (dma_resv_trylock(resv)) {
>> -               if (dma_resv_test_signaled_rcu(resv, true))
>> +               if (dma_resv_test_signaled(resv, true))
>>                          dma_resv_add_excl_fence(resv, NULL);
>>                  dma_resv_unlock(resv);
>>          }
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_busy.c b/drivers/gpu/drm/i915/gem/i915_gem_busy.c
>> index 3f94becac541..0083a850f839 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_busy.c
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_busy.c
>> @@ -105,7 +105,7 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
>>           * Alternatively, we can trade that extra information on read/write
>>           * activity with
>>           *      args->busy =
>> -        *              !dma_resv_test_signaled_rcu(obj->resv, true);
>> +        *              !dma_resv_test_signaled(obj->resv, true);
>>           * to report the overall busyness. This is what the wait-ioctl does.
>>           *
>>           */
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>> index 297143511f99..66789111a24b 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
>> @@ -1481,7 +1481,7 @@ static inline bool use_reloc_gpu(struct i915_vma *vma)
>>          if (DBG_FORCE_RELOC)
>>                  return false;
>>
>> -       return !dma_resv_test_signaled_rcu(vma->resv, true);
>> +       return !dma_resv_test_signaled(vma->resv, true);
>>   }
>>
>>   static unsigned long vma_phys_addr(struct i915_vma *vma, u32 offset)
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
>> index a657b99ec760..e78738aec7b2 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
>> @@ -85,7 +85,7 @@ static bool i915_gem_userptr_invalidate(struct mmu_interval_notifier *mni,
>>                  return true;
>>
>>          /* we will unbind on next submission, still have userptr pins */
>> -       r = dma_resv_wait_timeout_rcu(obj->base.resv, true, false,
>> +       r = dma_resv_wait_timeout(obj->base.resv, true, false,
>>                                        MAX_SCHEDULE_TIMEOUT);
>>          if (r <= 0)
>>                  drm_err(&i915->drm, "(%ld) failed to wait for idle\n", r);
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
>> index c13aeddf5aa7..e7aebb8fb468 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
>> @@ -45,7 +45,7 @@ i915_gem_object_wait_reservation(struct dma_resv *resv,
>>                  unsigned int count, i;
>>                  int ret;
>>
>> -               ret = dma_resv_get_fences_rcu(resv, &excl, &count, &shared);
>> +               ret = dma_resv_get_fences(resv, &excl, &count, &shared);
>>                  if (ret)
>>                          return ret;
>>
>> @@ -158,7 +158,7 @@ i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
>>                  unsigned int count, i;
>>                  int ret;
>>
>> -               ret = dma_resv_get_fences_rcu(obj->base.resv,
>> +               ret = dma_resv_get_fences(obj->base.resv,
>>                                                &excl, &count, &shared);
>>                  if (ret)
>>                          return ret;
>> diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
>> index c85494f411f4..4a70a1881d79 100644
>> --- a/drivers/gpu/drm/i915/i915_request.c
>> +++ b/drivers/gpu/drm/i915/i915_request.c
>> @@ -1594,7 +1594,7 @@ i915_request_await_object(struct i915_request *to,
>>                  struct dma_fence **shared;
>>                  unsigned int count, i;
>>
>> -               ret = dma_resv_get_fences_rcu(obj->base.resv,
>> +               ret = dma_resv_get_fences(obj->base.resv,
>>                                                          &excl, &count, &shared);
>>                  if (ret)
>>                          return ret;
>> diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c b/drivers/gpu/drm/i915/i915_sw_fence.c
>> index 7aaf74552d06..c589a681da77 100644
>> --- a/drivers/gpu/drm/i915/i915_sw_fence.c
>> +++ b/drivers/gpu/drm/i915/i915_sw_fence.c
>> @@ -582,7 +582,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
>>                  struct dma_fence **shared;
>>                  unsigned int count, i;
>>
>> -               ret = dma_resv_get_fences_rcu(resv, &excl, &count, &shared);
>> +               ret = dma_resv_get_fences(resv, &excl, &count, &shared);
>>                  if (ret)
>>                          return ret;
>>
>> diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
>> index 43af91df552e..ecd35986ddb5 100644
>> --- a/drivers/gpu/drm/msm/msm_gem.c
>> +++ b/drivers/gpu/drm/msm/msm_gem.c
>> @@ -915,7 +915,7 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout)
>>                  op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout);
>>          long ret;
>>
>> -       ret = dma_resv_wait_timeout_rcu(obj->resv, write,
>> +       ret = dma_resv_wait_timeout(obj->resv, write,
>>                                                    true,  remain);
>>          if (ret == 0)
>>                  return remain == 0 ? -EBUSY : -ETIMEDOUT;
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
>> index d863e5ed954a..c59072f254f1 100644
>> --- a/drivers/gpu/drm/nouveau/nouveau_gem.c
>> +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
>> @@ -964,7 +964,7 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
>>                  return -ENOENT;
>>          nvbo = nouveau_gem_object(gem);
>>
>> -       lret = dma_resv_wait_timeout_rcu(nvbo->bo.base.resv, write, true,
>> +       lret = dma_resv_wait_timeout(nvbo->bo.base.resv, write, true,
>>                                                     no_wait ? 0 : 30 * HZ);
>>          if (!lret)
>>                  ret = -EBUSY;
>> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
>> index ca07098a6141..0e6e893eb81d 100644
>> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
>> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
>> @@ -311,7 +311,7 @@ panfrost_ioctl_wait_bo(struct drm_device *dev, void *data,
>>          if (!gem_obj)
>>                  return -ENOENT;
>>
>> -       ret = dma_resv_wait_timeout_rcu(gem_obj->resv, true,
>> +       ret = dma_resv_wait_timeout(gem_obj->resv, true,
>>                                                    true, timeout);
>>          if (!ret)
>>                  ret = timeout ? -ETIMEDOUT : -EBUSY;
>> diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
>> index 3272c33af8fe..458f92a70887 100644
>> --- a/drivers/gpu/drm/radeon/radeon_gem.c
>> +++ b/drivers/gpu/drm/radeon/radeon_gem.c
>> @@ -161,7 +161,7 @@ static int radeon_gem_set_domain(struct drm_gem_object *gobj,
>>          }
>>          if (domain == RADEON_GEM_DOMAIN_CPU) {
>>                  /* Asking for cpu access wait for object idle */
>> -               r = dma_resv_wait_timeout_rcu(robj->tbo.base.resv, true, true, 30 * HZ);
>> +               r = dma_resv_wait_timeout(robj->tbo.base.resv, true, true, 30 * HZ);
>>                  if (!r)
>>                          r = -EBUSY;
>>
>> @@ -523,7 +523,7 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
>>          }
>>          robj = gem_to_radeon_bo(gobj);
>>
>> -       r = dma_resv_test_signaled_rcu(robj->tbo.base.resv, true);
>> +       r = dma_resv_test_signaled(robj->tbo.base.resv, true);
>>          if (r == 0)
>>                  r = -EBUSY;
>>          else
>> @@ -552,7 +552,7 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
>>          }
>>          robj = gem_to_radeon_bo(gobj);
>>
>> -       ret = dma_resv_wait_timeout_rcu(robj->tbo.base.resv, true, true, 30 * HZ);
>> +       ret = dma_resv_wait_timeout(robj->tbo.base.resv, true, true, 30 * HZ);
>>          if (ret == 0)
>>                  r = -EBUSY;
>>          else if (ret < 0)
>> diff --git a/drivers/gpu/drm/radeon/radeon_mn.c b/drivers/gpu/drm/radeon/radeon_mn.c
>> index e37c9a57a7c3..adb084e6ddbe 100644
>> --- a/drivers/gpu/drm/radeon/radeon_mn.c
>> +++ b/drivers/gpu/drm/radeon/radeon_mn.c
>> @@ -66,7 +66,7 @@ static bool radeon_mn_invalidate(struct mmu_interval_notifier *mn,
>>                  return true;
>>          }
>>
>> -       r = dma_resv_wait_timeout_rcu(bo->tbo.base.resv, true, false,
>> +       r = dma_resv_wait_timeout(bo->tbo.base.resv, true, false,
>>                                        MAX_SCHEDULE_TIMEOUT);
>>          if (r <= 0)
>>                  DRM_ERROR("(%ld) failed to wait for user bo\n", r);
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
>> index c41ef0caa492..32004cf37549 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
>> @@ -296,7 +296,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
>>          struct dma_resv *resv = &bo->base._resv;
>>          int ret;
>>
>> -       if (dma_resv_test_signaled_rcu(resv, true))
>> +       if (dma_resv_test_signaled(resv, true))
>>                  ret = 0;
>>          else
>>                  ret = -EBUSY;
>> @@ -308,7 +308,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
>>                          dma_resv_unlock(bo->base.resv);
>>                  spin_unlock(&bo->bdev->lru_lock);
>>
>> -               lret = dma_resv_wait_timeout_rcu(resv, true, interruptible,
>> +               lret = dma_resv_wait_timeout(resv, true, interruptible,
>>                                                   30 * HZ);
>>
>>                  if (lret < 0)
>> @@ -411,7 +411,7 @@ static void ttm_bo_release(struct kref *kref)
>>                          /* Last resort, if we fail to allocate memory for the
>>                           * fences block for the BO to become idle
>>                           */
>> -                       dma_resv_wait_timeout_rcu(bo->base.resv, true, false,
>> +                       dma_resv_wait_timeout(bo->base.resv, true, false,
>>                                                    30 * HZ);
>>                  }
>>
>> @@ -422,7 +422,7 @@ static void ttm_bo_release(struct kref *kref)
>>                  ttm_mem_io_free(bdev, bo->resource);
>>          }
>>
>> -       if (!dma_resv_test_signaled_rcu(bo->base.resv, true) ||
>> +       if (!dma_resv_test_signaled(bo->base.resv, true) ||
>>              !dma_resv_trylock(bo->base.resv)) {
>>                  /* The BO is not idle, resurrect it for delayed destroy */
>>                  ttm_bo_flush_all_fences(bo);
>> @@ -1121,13 +1121,13 @@ int ttm_bo_wait(struct ttm_buffer_object *bo,
>>          long timeout = 15 * HZ;
>>
>>          if (no_wait) {
>> -               if (dma_resv_test_signaled_rcu(bo->base.resv, true))
>> +               if (dma_resv_test_signaled(bo->base.resv, true))
>>                          return 0;
>>                  else
>>                          return -EBUSY;
>>          }
>>
>> -       timeout = dma_resv_wait_timeout_rcu(bo->base.resv, true,
>> +       timeout = dma_resv_wait_timeout(bo->base.resv, true,
>>                                                        interruptible, timeout);
>>          if (timeout < 0)
>>                  return timeout;
>> diff --git a/drivers/gpu/drm/vgem/vgem_fence.c b/drivers/gpu/drm/vgem/vgem_fence.c
>> index 2902dc6e64fa..7f3125cf5358 100644
>> --- a/drivers/gpu/drm/vgem/vgem_fence.c
>> +++ b/drivers/gpu/drm/vgem/vgem_fence.c
>> @@ -151,7 +151,7 @@ int vgem_fence_attach_ioctl(struct drm_device *dev,
>>
>>          /* Check for a conflicting fence */
>>          resv = obj->resv;
>> -       if (!dma_resv_test_signaled_rcu(resv,
>> +       if (!dma_resv_test_signaled(resv,
>>                                                    arg->flags & VGEM_FENCE_WRITE)) {
>>                  ret = -EBUSY;
>>                  goto err_fence;
>> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
>> index 669f2ee39515..190d9495dc0e 100644
>> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
>> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
>> @@ -451,9 +451,9 @@ static int virtio_gpu_wait_ioctl(struct drm_device *dev, void *data,
>>                  return -ENOENT;
>>
>>          if (args->flags & VIRTGPU_WAIT_NOWAIT) {
>> -               ret = dma_resv_test_signaled_rcu(obj->resv, true);
>> +               ret = dma_resv_test_signaled(obj->resv, true);
>>          } else {
>> -               ret = dma_resv_wait_timeout_rcu(obj->resv, true, true,
>> +               ret = dma_resv_wait_timeout(obj->resv, true, true,
>>                                                  timeout);
>>          }
>>          if (ret == 0)
>> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
>> index 176b6201ef2b..8faf1df027f3 100644
>> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
>> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
>> @@ -743,7 +743,7 @@ static int vmw_user_bo_synccpu_grab(struct vmw_user_buffer_object *user_bo,
>>          if (flags & drm_vmw_synccpu_allow_cs) {
>>                  long lret;
>>
>> -               lret = dma_resv_wait_timeout_rcu
>> +               lret = dma_resv_wait_timeout
>>                          (bo->base.resv, true, true,
>>                           nonblock ? 0 : MAX_SCHEDULE_TIMEOUT);
>>                  if (!lret)
>> diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h
>> index f6b71712c029..22325dfa7744 100644
>> --- a/include/linux/dma-resv.h
>> +++ b/include/linux/dma-resv.h
>> @@ -268,19 +268,12 @@ void dma_resv_init(struct dma_resv *obj);
>>   void dma_resv_fini(struct dma_resv *obj);
>>   int dma_resv_reserve_shared(struct dma_resv *obj, unsigned int num_fences);
>>   void dma_resv_add_shared_fence(struct dma_resv *obj, struct dma_fence *fence);
>> -
>>   void dma_resv_add_excl_fence(struct dma_resv *obj, struct dma_fence *fence);
>> -
>> -int dma_resv_get_fences_rcu(struct dma_resv *obj,
>> -                           struct dma_fence **pfence_excl,
>> -                           unsigned *pshared_count,
>> -                           struct dma_fence ***pshared);
>> -
>> +int dma_resv_get_fences(struct dma_resv *obj, struct dma_fence **pfence_excl,
>> +                       unsigned *pshared_count, struct dma_fence ***pshared);
>>   int dma_resv_copy_fences(struct dma_resv *dst, struct dma_resv *src);
>> -
>> -long dma_resv_wait_timeout_rcu(struct dma_resv *obj, bool wait_all, bool intr,
>> -                              unsigned long timeout);
>> -
>> -bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all);
>> +long dma_resv_wait_timeout(struct dma_resv *obj, bool wait_all, bool intr,
>> +                          unsigned long timeout);
>> +bool dma_resv_test_signaled(struct dma_resv *obj, bool test_all);
>>
>>   #endif /* _LINUX_RESERVATION_H */
>> --
>> 2.25.1
>>



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