Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:

 - a few misc things

 - the rest of MM

-  remove flex_arrays, replace with new simple radix-tree implementation

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (38 commits)
  Drop flex_arrays
  sctp: convert to genradix
  proc: commit to genradix
  generic radix trees
  selinux: convert to kvmalloc
  md: convert to kvmalloc
  openvswitch: convert to kvmalloc
  of: fix kmemleak crash caused by imbalance in early memory reservation
  mm: memblock: update comments and kernel-doc
  memblock: split checks whether a region should be skipped to a helper function
  memblock: remove memblock_{set,clear}_region_flags
  memblock: drop memblock_alloc_*_nopanic() variants
  memblock: memblock_alloc_try_nid: don't panic
  treewide: add checks for the return value of memblock_alloc*()
  swiotlb: add checks for the return value of memblock_alloc*()
  init/main: add checks for the return value of memblock_alloc*()
  mm/percpu: add checks for the return value of memblock_alloc*()
  sparc: add checks for the return value of memblock_alloc*()
  ia64: add checks for the return value of memblock_alloc*()
  arch: don't memset(0) memory returned by memblock_alloc()
  ...

1 files changed, 8 insertions, 2 deletions

diff --git a/mm/kasan/init.c b/mm/kasan/init.c
index fcaa1ca03175..ce45c491ebcd 100644
--- a/mm/kasan/init.c
+++ b/mm/kasan/init.c
@@ -83,8 +83,14 @@ static inline bool kasan_early_shadow_page_entry(pte_t pte)
 
 static __init void *early_alloc(size_t size, int node)
 {
-	return memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
-					MEMBLOCK_ALLOC_ACCESSIBLE, node);
+	void *ptr = memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
+					   MEMBLOCK_ALLOC_ACCESSIBLE, node);
+
+	if (!ptr)
+		panic("%s: Failed to allocate %zu bytes align=%zx nid=%d from=%llx\n",
+		      __func__, size, size, node, (u64)__pa(MAX_DMA_ADDRESS));
+
+	return ptr;
 }
 
 static void __ref zero_pte_populate(pmd_t *pmd, unsigned long addr,