LU-3469 osp: osp_sync() to flush pending changes synchronously

[fs/lustre-release.git] / lustre / osp / lproc_osp.c

diff --git a/lustre/osp/lproc_osp.c b/lustre/osp/lproc_osp.c
index c23ce18..f9b3fe5 100644 (file)
--- a/lustre/osp/lproc_osp.c
+++ b/lustre/osp/lproc_osp.c
@@ -117,7 +117,26 @@ static int osp_syn_changes_seq_show(struct seq_file *m, void *data)
 
        return seq_printf(m, "%lu\n", osp->opd_syn_changes);
 }
 
        return seq_printf(m, "%lu\n", osp->opd_syn_changes);
 }

-LPROC_SEQ_FOPS_RO(osp_syn_changes);
+
+static ssize_t osp_syn_changes_seq_write(struct file *file, const char *buffer,
+                                        size_t count, loff_t *off)
+{
+       struct seq_file         *m      = file->private_data;
+       struct obd_device       *dev    = m->private;
+       struct osp_device       *osp    = lu2osp_dev(dev->obd_lu_dev);
+       struct lu_env            env;
+       int                      rc;
+
+       rc = lu_env_init(&env, LCT_LOCAL);
+       if (rc != 0)
+               return rc;
+
+       rc = dt_sync(&env, &osp->opd_dt_dev);
+       lu_env_fini(&env);
+
+       return rc == 0 ? count : rc;
+}
+LPROC_SEQ_FOPS(osp_syn_changes);

 
 static int osp_max_rpcs_in_flight_seq_show(struct seq_file *m, void *data)
 {
 
 static int osp_max_rpcs_in_flight_seq_show(struct seq_file *m, void *data)
 {