fs: export inode_to_bdi and use it in favor of mapping->backing_dev_info

[linux-block.git] / fs / btrfs / file.c

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index e4090259569bccfdb3ec788481814e769ff84615..835c04a874fd8bc65f8f1c3c3b897304d9860f59 100644 (file)
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1746,7 +1746,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
 
        mutex_lock(&inode->i_mutex);
 
-       current->backing_dev_info = inode->i_mapping->backing_dev_info;
+       current->backing_dev_info = inode_to_bdi(inode);
        err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));
        if (err) {
                mutex_unlock(&inode->i_mutex);