LU-16692 osp: osp_fid_diff vs rollover_new_seq race

[fs/lustre-release.git] / lustre / osp / osp_internal.h

diff --git a/lustre/osp/osp_internal.h b/lustre/osp/osp_internal.h
index f98a7a4..1ba8c54 100644 (file)
--- a/lustre/osp/osp_internal.h
+++ b/lustre/osp/osp_internal.h
@@ -613,12 +613,22 @@ static inline bool osp_precreate_end_seq(struct osp_device *osp)
        return rc;
 }
 
-static inline int osp_objs_precreated(struct osp_device *osp)
+static inline int osp_objs_precreated_nolock(struct osp_device *osp)
 {
        return osp_fid_diff(&osp->opd_pre_last_created_fid,
                            &osp->opd_pre_used_fid);
 }
 
+static inline int osp_objs_precreated(struct osp_device *osp)
+{
+       int diff;
+
+       spin_lock(&osp->opd_pre_lock);
+       diff = osp_objs_precreated_nolock(osp);
+       spin_unlock(&osp->opd_pre_lock);
+       return diff;
+}
+
 static inline int osp_is_fid_client(struct osp_device *osp)
 {
        struct obd_import *imp = osp->opd_obd->u.cli.cl_import;