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dma-buf: cleanup reservation_object_init/fini

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They are not used that often and certainly not in a hot path.
Make them normal functions instead of an inline.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/314480/
This commit is contained in:
Christian König 2019-06-26 16:31:46 +02:00
parent 5ed7191dd9
commit 8735f16803
2 changed files with 47 additions and 44 deletions
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45
drivers/dma-buf/reservation.c
View File

@ -55,6 +55,51 @@ EXPORT_SYMBOL(reservation_seqcount_class);
const char reservation_seqcount_string[] = "reservation_seqcount";
EXPORT_SYMBOL(reservation_seqcount_string);
/**
* reservation_object_init - initialize a reservation object
* @obj: the reservation object
*/
void reservation_object_init(struct reservation_object *obj)
{
ww_mutex_init(&obj->lock, &reservation_ww_class);
__seqcount_init(&obj->seq, reservation_seqcount_string,
&reservation_seqcount_class);
RCU_INIT_POINTER(obj->fence, NULL);
RCU_INIT_POINTER(obj->fence_excl, NULL);
}
EXPORT_SYMBOL(reservation_object_init);
/**
* reservation_object_fini - destroys a reservation object
* @obj: the reservation object
*/
void reservation_object_fini(struct reservation_object *obj)
{
int i;
struct reservation_object_list *fobj;
struct dma_fence *excl;
/*
* This object should be dead and all references must have
* been released to it, so no need to be protected with rcu.
*/
excl = rcu_dereference_protected(obj->fence_excl, 1);
if (excl)
dma_fence_put(excl);
fobj = rcu_dereference_protected(obj->fence, 1);
if (fobj) {
for (i = 0; i < fobj->shared_count; ++i)
dma_fence_put(rcu_dereference_protected(fobj->shared[i], 1));
kfree(fobj);
}
ww_mutex_destroy(&obj->lock);
}
EXPORT_SYMBOL(reservation_object_fini);
/**
* reservation_object_reserve_shared - Reserve space to add shared fences to
* a reservation_object.

46
include/linux/reservation.h
View File

@ -81,50 +81,6 @@ struct reservation_object {
#define reservation_object_assert_held(obj) \
lockdep_assert_held(&(obj)->lock.base)
/**
* reservation_object_init - initialize a reservation object
* @obj: the reservation object
*/
static inline void
reservation_object_init(struct reservation_object *obj)
{
ww_mutex_init(&obj->lock, &reservation_ww_class);
__seqcount_init(&obj->seq, reservation_seqcount_string, &reservation_seqcount_class);
RCU_INIT_POINTER(obj->fence, NULL);
RCU_INIT_POINTER(obj->fence_excl, NULL);
}
/**
* reservation_object_fini - destroys a reservation object
* @obj: the reservation object
*/
static inline void
reservation_object_fini(struct reservation_object *obj)
{
int i;
struct reservation_object_list *fobj;
struct dma_fence *excl;
/*
* This object should be dead and all references must have
* been released to it, so no need to be protected with rcu.
*/
excl = rcu_dereference_protected(obj->fence_excl, 1);
if (excl)
dma_fence_put(excl);
fobj = rcu_dereference_protected(obj->fence, 1);
if (fobj) {
for (i = 0; i < fobj->shared_count; ++i)
dma_fence_put(rcu_dereference_protected(fobj->shared[i], 1));
kfree(fobj);
}
ww_mutex_destroy(&obj->lock);
}
/**
* reservation_object_get_list - get the reservation object's
* shared fence list, with update-side lock held
@ -271,6 +227,8 @@ reservation_object_get_excl_rcu(struct reservation_object *obj)
return fence;
}
void reservation_object_init(struct reservation_object *obj);
void reservation_object_fini(struct reservation_object *obj);
int reservation_object_reserve_shared(struct reservation_object *obj,
unsigned int num_fences);
void reservation_object_add_shared_fence(struct reservation_object *obj,