1 files changed, 10 insertions, 1 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 571ad3c13b47..1be96ba6f6bb 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -123,7 +123,10 @@ static noinline int dirty_and_release_pages(struct btrfs_trans_handle *trans,
                     root->sectorsize - 1) & ~((u64)root->sectorsize - 1);
 
         end_of_last_block = start_pos + num_bytes - 1;
-        btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block);
+        err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block);
+        if (err)
+                return err;
+
         for (i = 0; i < num_pages; i++) {
                 struct page *p = pages[i];
                 SetPageUptodate(p);
@@ -927,6 +930,11 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
         err = file_remove_suid(file);
         if (err)
                 goto out_nolock;
+
+        err = btrfs_reserve_metadata_for_delalloc(root, inode, 1);
+        if (err)
+                goto out_nolock;
+
         file_update_time(file);
 
         pages = kmalloc(nrptrs * sizeof(struct page *), GFP_KERNEL);
@@ -1028,6 +1036,7 @@ out:
         mutex_unlock(&inode->i_mutex);
         if (ret)
                 err = ret;
+        btrfs_unreserve_metadata_for_delalloc(root, inode, 1);
 
 out_nolock:
         kfree(pages);