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drm: Kill ctx_count from struct drm_device

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The only user of ctx_count is the via driver, and we can replace that
use with list_is_singular().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ville Syrjälä 2013-10-04 14:53:39 +03:00 committed by Dave Airlie
parent 6b8837df7a
commit fc6ff1935b
4 changed files with 1 additions and 5 deletions
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2
drivers/gpu/drm/drm_context.c
View File

@ -334,7 +334,6 @@ int drm_addctx(struct drm_device *dev, void *data,
mutex_lock(&dev->ctxlist_mutex);
list_add(&ctx_entry->head, &dev->ctxlist);
++dev->ctx_count;
mutex_unlock(&dev->ctxlist_mutex);
return 0;
@ -432,7 +431,6 @@ int drm_rmctx(struct drm_device *dev, void *data,
if (pos->handle == ctx->handle) {
list_del(&pos->head);
kfree(pos);
--dev->ctx_count;
}
}
}

1
drivers/gpu/drm/drm_fops.c
View File

@ -524,7 +524,6 @@ int drm_release(struct inode *inode, struct file *filp)
list_del(&pos->head);
kfree(pos);
--dev->ctx_count;
}
}
}

2
drivers/gpu/drm/via/via_mm.c
View File

@ -79,7 +79,7 @@ int via_final_context(struct drm_device *dev, int context)
/* Linux specific until context tracking code gets ported to BSD */
/* Last context, perform cleanup */
if (dev->ctx_count == 1 && dev->dev_private) {
if (list_is_singular(&dev->ctxlist) && dev->dev_private) {
DRM_DEBUG("Last Context\n");
drm_irq_uninstall(dev);
via_cleanup_futex(dev_priv);

1
include/drm/drmP.h
View File

@ -1132,7 +1132,6 @@ struct drm_device {
/** \name Context handle management */
/*@{ */
struct list_head ctxlist; /**< Linked list of context handles */
int ctx_count; /**< Number of context handles */
struct mutex ctxlist_mutex; /**< For ctxlist */
struct idr ctx_idr;