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Diffstat (limited to 'include/linux/gfp.h')
-rw-r--r--include/linux/gfp.h18
1 files changed, 16 insertions, 2 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index ef4aea3b356e..65a78773dcca 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -210,6 +210,20 @@ alloc_pages_bulk_array_node(gfp_t gfp, int nid, unsigned long nr_pages, struct p
return __alloc_pages_bulk(gfp, nid, NULL, nr_pages, NULL, page_array);
}
+static inline void warn_if_node_offline(int this_node, gfp_t gfp_mask)
+{
+ gfp_t warn_gfp = gfp_mask & (__GFP_THISNODE|__GFP_NOWARN);
+
+ if (warn_gfp != (__GFP_THISNODE|__GFP_NOWARN))
+ return;
+
+ if (node_online(this_node))
+ return;
+
+ pr_warn("%pGg allocation from offline node %d\n", &gfp_mask, this_node);
+ dump_stack();
+}
+
/*
* Allocate pages, preferring the node given as nid. The node must be valid and
* online. For more general interface, see alloc_pages_node().
@@ -218,7 +232,7 @@ static inline struct page *
__alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order)
{
VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES);
- VM_WARN_ON((gfp_mask & __GFP_THISNODE) && !node_online(nid));
+ warn_if_node_offline(nid, gfp_mask);
return __alloc_pages(gfp_mask, order, nid, NULL);
}
@@ -227,7 +241,7 @@ static inline
struct folio *__folio_alloc_node(gfp_t gfp, unsigned int order, int nid)
{
VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES);
- VM_WARN_ON((gfp & __GFP_THISNODE) && !node_online(nid));
+ warn_if_node_offline(nid, gfp);
return __folio_alloc(gfp, order, nid, NULL);
}