These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / fs / btrfs / delayed-inode.c

diff --git a/kernel/fs/btrfs/delayed-inode.c b/kernel/fs/btrfs/delayed-inode.c
index a2ae427..02b934d 100644 (file)
--- a/kernel/fs/btrfs/delayed-inode.c
+++ b/kernel/fs/btrfs/delayed-inode.c
@@ -463,6 +463,10 @@ static int __btrfs_add_delayed_deletion_item(struct btrfs_delayed_node *node,
 static void finish_one_item(struct btrfs_delayed_root *delayed_root)
 {
        int seq = atomic_inc_return(&delayed_root->items_seq);
+
+       /*
+        * atomic_dec_return implies a barrier for waitqueue_active
+        */
        if ((atomic_dec_return(&delayed_root->items) <
            BTRFS_DELAYED_BACKGROUND || seq % BTRFS_DELAYED_BATCH == 0) &&
            waitqueue_active(&delayed_root->wait))
@@ -1690,7 +1694,7 @@ int btrfs_should_delete_dir_index(struct list_head *del_list,
  *
  */
 int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
-                                   struct list_head *ins_list)
+                                   struct list_head *ins_list, bool *emitted)
 {
        struct btrfs_dir_item *di;
        struct btrfs_delayed_item *curr, *next;
@@ -1734,6 +1738,7 @@ int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
 
                if (over)
                        return 1;
+               *emitted = true;
        }
        return 0;
 }