LU-11213 mdc: add async statfs

[fs/lustre-release.git] / lustre / osc / osc_request.c

diff --git a/lustre/osc/osc_request.c b/lustre/osc/osc_request.c
index a44e8b7..44c7ad1 100644 (file)
--- a/lustre/osc/osc_request.c
+++ b/lustre/osc/osc_request.c
@@ -2730,6 +2730,22 @@ static int osc_statfs_async(struct obd_export *exp,
        int rc;
         ENTRY;
 
+       if (obd->obd_osfs_age >= max_age) {
+               CDEBUG(D_SUPER,
+                      "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
+                      obd->obd_name, &obd->obd_osfs,
+                      obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
+                      obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
+               spin_lock(&obd->obd_osfs_lock);
+               memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
+               spin_unlock(&obd->obd_osfs_lock);
+               oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
+               if (oinfo->oi_cb_up)
+                       oinfo->oi_cb_up(oinfo, 0);
+
+               RETURN(0);
+       }
+
         /* We could possibly pass max_age in the request (as an absolute
          * timestamp or a "seconds.usec ago") so the target can avoid doing
          * extra calls into the filesystem if that isn't necessary (e.g.