kclient: filemap_write_and_wait_range not exported < 2.6.30

Include a warning that snap flushing may not work.

diff --git a/src/kernel/inode.c b/src/kernel/inode.c
index 9fe9ae1523c7d287bec726e1c63d17c87c2fc4bb..5473ab6455289f88c59f4d5e04ba346b86978511 100644 (file)
--- a/src/kernel/inode.c
+++ b/src/kernel/inode.c
@@ -1272,8 +1272,13 @@ retry:
                dout(10, "__do_pending_vmtruncate %p flushing snaps first\n",
                     inode);
                spin_unlock(&inode->i_lock);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30)
                filemap_write_and_wait_range(&inode->i_data, 0,
                                             CEPH_FILE_MAX_SIZE);
+#else
+# warning i may not flush all data after a snapshot + truncate.. i export need 2.6.30
+               filemap_write_and_wait(&inode->i_data);
+#endif
                goto retry;
        }