em->flags = 0;
em->compress_type = BTRFS_COMPRESS_NONE;
em->generation = 0;
- atomic_set(&em->refs, 1);
+ refcount_set(&em->refs, 1);
INIT_LIST_HEAD(&em->list);
return em;
}
{
if (!em)
return;
- WARN_ON(atomic_read(&em->refs) == 0);
- if (atomic_dec_and_test(&em->refs)) {
+ WARN_ON(refcount_read(&em->refs) == 0);
+ if (refcount_dec_and_test(&em->refs)) {
WARN_ON(extent_map_in_tree(em));
WARN_ON(!list_empty(&em->list));
if (test_bit(EXTENT_FLAG_FS_MAPPING, &em->flags))
struct extent_map *em,
int modified)
{
- atomic_inc(&em->refs);
+ refcount_inc(&em->refs);
em->mod_start = em->start;
em->mod_len = em->len;
if (strict && !(end > em->start && start < extent_map_end(em)))
return NULL;
- atomic_inc(&em->refs);
+ refcount_inc(&em->refs);
return em;
}