1 files changed, 29 insertions, 8 deletions

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index b16450b840e7..138a7d7e9c90 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -424,27 +424,48 @@ out:
 }
 
 /* Needs to either be called under a log transaction or the log_mutex */
-void btrfs_get_logged_extents(struct btrfs_root *log, struct inode *inode)
+void btrfs_get_logged_extents(struct inode *inode,
+                              struct list_head *logged_list)
 {
         struct btrfs_ordered_inode_tree *tree;
         struct btrfs_ordered_extent *ordered;
         struct rb_node *n;
-        int index = log->log_transid % 2;
 
         tree = &BTRFS_I(inode)->ordered_tree;
         spin_lock_irq(&tree->lock);
         for (n = rb_first(&tree->tree); n; n = rb_next(n)) {
                 ordered = rb_entry(n, struct btrfs_ordered_extent, rb_node);
-                spin_lock(&log->log_extents_lock[index]);
-                if (list_empty(&ordered->log_list)) {
-                        list_add_tail(&ordered->log_list, &log->logged_list[index]);
-                        atomic_inc(&ordered->refs);
-                }
-                spin_unlock(&log->log_extents_lock[index]);
+                if (!list_empty(&ordered->log_list))
+                        continue;
+                list_add_tail(&ordered->log_list, logged_list);
+                atomic_inc(&ordered->refs);
         }
         spin_unlock_irq(&tree->lock);
 }
 
+void btrfs_put_logged_extents(struct list_head *logged_list)
+{
+        struct btrfs_ordered_extent *ordered;
+
+        while (!list_empty(logged_list)) {
+                ordered = list_first_entry(logged_list,
+                                           struct btrfs_ordered_extent,
+                                           log_list);
+                list_del_init(&ordered->log_list);
+                btrfs_put_ordered_extent(ordered);
+        }
+}
+
+void btrfs_submit_logged_extents(struct list_head *logged_list,
+                                 struct btrfs_root *log)
+{
+        int index = log->log_transid % 2;
+
+        spin_lock_irq(&log->log_extents_lock[index]);
+        list_splice_tail(logged_list, &log->logged_list[index]);
+        spin_unlock_irq(&log->log_extents_lock[index]);
+}
+
 void btrfs_wait_logged_extents(struct btrfs_root *log, u64 transid)
 {
         struct btrfs_ordered_extent *ordered;