LU-11691 lov: Limit layout size to max ea size

[fs/lustre-release.git] / lustre / lod / lod_lov.c

diff --git a/lustre/lod/lod_lov.c b/lustre/lod/lod_lov.c
index 7434374..a990505 100644 (file)
--- a/lustre/lod/lod_lov.c
+++ b/lustre/lod/lod_lov.c
@@ -857,6 +857,11 @@ static int lod_gen_component_ea(const struct lu_env *env,
                objs = &v3->lmm_objects[0];
        }
        stripe_count = lod_comp_entry_stripe_count(lo, lod_comp, is_dir);
+       if (stripe_count == 0 && !is_dir &&
+           !(lod_comp->llc_pattern & LOV_PATTERN_F_RELEASED) &&
+           !(lod_comp->llc_pattern & LOV_PATTERN_MDT))
+               RETURN(-E2BIG);
+
        if (!is_dir && lo->ldo_is_composite)
                lod_comp_shrink_stripe_count(lod_comp, &stripe_count);
 
@@ -1330,6 +1335,10 @@ int lod_parse_striping(const struct lu_env *env, struct lod_object *lo,
                        if (objs[0].l_ost_idx != (__u32)-1UL) {
                                stripe_count = lod_comp_entry_stripe_count(
                                                        lo, lod_comp, false);
+                               if (stripe_count == 0 &&
+                                   !(lod_comp->llc_pattern & LOV_PATTERN_F_RELEASED) &&
+                                   !(lod_comp->llc_pattern & LOV_PATTERN_MDT))
+                                       GOTO(out, rc = -E2BIG);
                                /**
                                 * load the user specified ost list, when this
                                 * component is instantiated later, it will be