Btrfs: Don't wait on tree block writeback before freeing them anymore

This isn't required anymore because we don't reallocate blocks that
have already been written in this transaction.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3e1f21c632c1..5632ea760077 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -383,9 +383,11 @@ int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
         struct btrfs_csum_item *item;
         struct btrfs_path *path = NULL;
         u32 csum;
+
         if (btrfs_test_opt(root, NODATASUM) ||
             btrfs_test_flag(inode, NODATASUM))
                 return 0;
+
         mutex_lock(&root->fs_info->fs_mutex);
         path = btrfs_alloc_path();
         item = btrfs_lookup_csum(NULL, root, path, inode->i_ino, start, 0);