b=11063

i=green,vitaly
this patch reverses
	https://bugzilla.lustre.org/attachment.cgi?id=7933
	https://bugzilla.lustre.org/attachment.cgi?id=7882
	https://bugzilla.lustre.org/attachment.cgi?id=15831
and replaces them with setting mtime to past under extent lock

sanity test (39c) is added to check original problem
i=adilger,grev

diff --git a/lustre/lov/lov_internal.h b/lustre/lov/lov_internal.h
index 7796f63..46fa422 100644 (file)
--- a/lustre/lov/lov_internal.h
+++ b/lustre/lov/lov_internal.h
@@ -157,6 +157,8 @@ int lov_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm,
                   struct ost_lvb *lvb, int kms_only);
 int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
                    obd_off size, int shrink);
+int lov_update_lvb(struct obd_export *exp, struct lov_stripe_md *lsm,
+                   struct ost_lvb *lvb, obd_flag valid);
 
 /* lov_offset.c */
 obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size,