diff options
Diffstat (limited to 'drivers/gpu/drm/drm_hashtab.c')
| -rw-r--r-- | drivers/gpu/drm/drm_hashtab.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/gpu/drm/drm_hashtab.c b/drivers/gpu/drm/drm_hashtab.c index a93d7b4ddaa6..e3a75688f3cd 100644 --- a/drivers/gpu/drm/drm_hashtab.c +++ b/drivers/gpu/drm/drm_hashtab.c @@ -39,27 +39,18 @@ int drm_ht_create(struct drm_open_hash *ht, unsigned int order) { - unsigned int i; + unsigned int size = 1 << order; - ht->size = 1 << order; ht->order = order; - ht->fill = 0; ht->table = NULL; - ht->use_vmalloc = ((ht->size * sizeof(*ht->table)) > PAGE_SIZE); - if (!ht->use_vmalloc) { - ht->table = kcalloc(ht->size, sizeof(*ht->table), GFP_KERNEL); - } - if (!ht->table) { - ht->use_vmalloc = 1; - ht->table = vmalloc(ht->size*sizeof(*ht->table)); - } + if (size <= PAGE_SIZE / sizeof(*ht->table)) + ht->table = kcalloc(size, sizeof(*ht->table), GFP_KERNEL); + else + ht->table = vzalloc(size*sizeof(*ht->table)); if (!ht->table) { DRM_ERROR("Out of memory for hash table\n"); return -ENOMEM; } - for (i=0; i< ht->size; ++i) { - INIT_HLIST_HEAD(&ht->table[i]); - } return 0; } EXPORT_SYMBOL(drm_ht_create); @@ -180,7 +171,6 @@ int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key) list = drm_ht_find_key(ht, key); if (list) { hlist_del_init(list); - ht->fill--; return 0; } return -EINVAL; @@ -189,7 +179,6 @@ int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key) int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item) { hlist_del_init(&item->head); - ht->fill--; return 0; } EXPORT_SYMBOL(drm_ht_remove_item); @@ -197,10 +186,10 @@ EXPORT_SYMBOL(drm_ht_remove_item); void drm_ht_remove(struct drm_open_hash *ht) { if (ht->table) { - if (ht->use_vmalloc) - vfree(ht->table); - else + if ((PAGE_SIZE / sizeof(*ht->table)) >> ht->order) kfree(ht->table); + else + vfree(ht->table); ht->table = NULL; } } |