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-rw-r--r--fs/nfs/export.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/nfs/export.c b/fs/nfs/export.c
index 7412bb164fa7..f2b34cfe286c 100644
--- a/fs/nfs/export.c
+++ b/fs/nfs/export.c
@@ -167,10 +167,28 @@ out:
return parent;
}
+static u64 nfs_fetch_iversion(struct inode *inode)
+{
+ struct nfs_server *server = NFS_SERVER(inode);
+
+ /* Is this the right call?: */
+ nfs_revalidate_inode(server, inode);
+ /*
+ * Also, note we're ignoring any returned error. That seems to be
+ * the practice for cache consistency information elsewhere in
+ * the server, but I'm not sure why.
+ */
+ if (server->nfs_client->rpc_ops->version >= 4)
+ return inode_peek_iversion_raw(inode);
+ else
+ return time_to_chattr(&inode->i_ctime);
+}
+
const struct export_operations nfs_export_ops = {
.encode_fh = nfs_encode_fh,
.fh_to_dentry = nfs_fh_to_dentry,
.get_parent = nfs_get_parent,
+ .fetch_iversion = nfs_fetch_iversion,
.flags = EXPORT_OP_NOWCC|EXPORT_OP_NOSUBTREECHK|
EXPORT_OP_CLOSE_BEFORE_UNLINK|EXPORT_OP_REMOTE_FS|
EXPORT_OP_NOATOMIC_ATTR,