diff options
| author | Peter Zijlstra <[email protected]> | 2016-11-14 16:29:48 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-01-14 10:37:18 +0000 |
| commit | 2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e (patch) | |
| tree | 4ccb975ac9142887b4e7e7bf1c0cca5c53d4cf99 /drivers/gpu/drm/drm_mode_object.c | |
| parent | locking/atomic, kref: Add KREF_INIT() (diff) | |
| download | kernel-2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e.tar.gz kernel-2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e.zip | |
locking/atomic, kref: Add kref_read()
Since we need to change the implementation, stop exposing internals.
Provide kref_read() to read the current reference count; typically
used for debug messages.
Kills two anti-patterns:
atomic_read(&kref->refcount)
kref->refcount.counter
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/drm_mode_object.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mode_object.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index 9f17085b1fdd..c6885a4911c0 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -159,7 +159,7 @@ EXPORT_SYMBOL(drm_mode_object_find); void drm_mode_object_unreference(struct drm_mode_object *obj) { if (obj->free_cb) { - DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); + DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, kref_read(&obj->refcount)); kref_put(&obj->refcount, obj->free_cb); } } @@ -176,7 +176,7 @@ EXPORT_SYMBOL(drm_mode_object_unreference); void drm_mode_object_reference(struct drm_mode_object *obj) { if (obj->free_cb) { - DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); + DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, kref_read(&obj->refcount)); kref_get(&obj->refcount); } } |