NFS: Return -ETXTBSY when attempting to write to a swapfile

My understanding is that -EBUSY refers to the underlying device, and
that -ETXTBSY is used when attempting to access a file in use by the
kernel (like a swapfile). Changing this return code helps us pass
xfstests generic/569

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 95dc90570786cce9509f5b09b885f7f6f21a8894..8eb731d9be3eae2d7b63308af27edd6dc397ea67 100644 (file)
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -649,7 +649,7 @@ out:
 
 out_swapfile:
        printk(KERN_INFO "NFS: attempt to write to active swap file!\n");
-       return -EBUSY;
+       return -ETXTBSY;
 }
 EXPORT_SYMBOL_GPL(nfs_file_write);