+ slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix.patch added to -mm tree

+ slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix
has been added to the -mm tree.  Its filename is
     slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix.patch

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix

fix build with CONFIG_SLUB_DEBUG=n

Reported-by: kernel test robot <lkp@intel.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Joe Perches <joe@perches.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/slub.c |   18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

--- a/mm/slub.c~slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix
+++ a/mm/slub.c
@@ -117,12 +117,26 @@
  */
 
 #ifdef CONFIG_SLUB_DEBUG
+
 #ifdef CONFIG_SLUB_DEBUG_ON
 DEFINE_STATIC_KEY_TRUE(slub_debug_enabled);
 #else
 DEFINE_STATIC_KEY_FALSE(slub_debug_enabled);
 #endif
-#endif
+
+static inline bool __slub_debug_enabled(void)
+{
+	return static_branch_unlikely(&slub_debug_enabled);
+}
+
+#else		/* CONFIG_SLUB_DEBUG */
+
+static inline bool __slub_debug_enabled(void)
+{
+	return false;
+}
+
+#endif		/* CONFIG_SLUB_DEBUG */
 
 static inline bool kmem_cache_debug(struct kmem_cache *s)
 {
@@ -4493,7 +4507,7 @@ void __init kmem_cache_init(void)
 		slub_max_order = 0;
 
 	/* Print slub debugging pointers without hashing */
-	if (static_branch_unlikely(&slub_debug_enabled))
+	if (__slub_debug_enabled())
 		no_hash_pointers_enable(NULL);
 
 	kmem_cache_node = &boot_kmem_cache_node;
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm.patch
mm-slub-kunit-add-a-kunit-test-for-slub-debugging-functionality-fix-2.patch
slub-force-on-no_hash_pointers-when-slub_debug-is-enabled-fix.patch
mm-gup-pack-has_pinned-in-mmf_has_pinned-checkpatch-fixes.patch
mm-memcg-optimize-user-context-object-stock-access-checkpatch-fixes.patch
mm-memcg-slab-create-a-new-set-of-kmalloc-cg-n-caches-v5-fix.patch
binfmt-remove-in-tree-usage-of-map_executable-fix.patch
mm-mmap-introduce-unlock_range-for-code-cleanup-fix.patch
powerpc-mm-book3s64-update-tlb-flush-routines-to-take-a-page-walk-cache-flush-argument-fix.patch
mm-mremap-use-range-flush-that-does-tlb-and-page-walk-cache-flush-fix.patch
mm-rename-the-global-section-array-to-mem_sections-fix.patch
mm-rename-the-global-section-array-to-mem_sections-fix-fix.patch
mm-page_alloc-convert-per-cpu-list-protection-to-local_lock-fix-checkpatch-fixes.patch
mm-memory-failure-use-a-mutex-to-avoid-memory_failure-races-fix.patch
mm-memory_hotplug-disable-memmap_on_memory-when-hugetlb_free_vmemmap-enabled-fix.patch
mm-userfaultfd-fix-uffd-wp-special-cases-for-fork-fix.patch
mm-thp-check-total_mapcount-instead-of-page_mapcount-fix-fix-fix.patch
nommu-remove-__gfp_highmem-in-vmalloc-vzalloc-checkpatch-fixes.patch
mm-madvise-introduce-madv_populate_readwrite-to-prefault-page-tables-checkpatch-fixes.patch
mmmemory_hotplug-drop-unneeded-locking-fix.patch
mm-rmap-make-try_to_unmap-void-function-fix.patch
mm-rmap-make-try_to_unmap-void-function-fix-fix.patch
kernelh-split-out-panic-and-oops-helpers-fix.patch
lib-math-rational-add-kunit-test-cases-fix.patch
lib-decompressors-remove-set-but-not-used-variabled-level-fix.patch
ipc-utilc-use-binary-search-for-max_idx-fix.patch
linux-next-pre.patch
linux-next-post.patch
linux-next-rejects.patch
mm-introduce-memfd_secret-system-call-to-create-secret-memory-areas-fix.patch
module-add-printk-formats-to-add-module-build-id-to-stacktraces-fix.patch
module-add-printk-formats-to-add-module-build-id-to-stacktraces-fix-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch