1 files changed, 13 insertions, 2 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 41b0c7de7a59..e535c50e669b 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1893,8 +1893,19 @@ static void btrfs_truncate(struct inode *inode)
 int btrfs_commit_write(struct file *file, struct page *page,
                        unsigned from, unsigned to)
 {
-        return extent_commit_write(&BTRFS_I(page->mapping->host)->extent_tree,
-                                   page->mapping->host, page, from, to);
+        loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
+        struct inode *inode = page->mapping->host;
+
+        btrfs_cow_one_page(inode, page, PAGE_CACHE_SIZE);
+
+        set_page_extent_mapped(page);
+        set_page_dirty(page);
+
+        if (pos > inode->i_size) {
+                i_size_write(inode, pos);
+                mark_inode_dirty(inode);
+        }
+        return 0;
 }
 
 static int create_subvol(struct btrfs_root *root, char *name, int namelen)