slub: remove verify_mem_not_deleted()

I do not see any user for this code in the tree.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 901fb6eb74674aae9818e1cb61edc5657374bd59..cc0b67eada4260331276e9ae145fa593c14ecee8 100644 (file)
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -98,17 +98,4 @@ struct kmem_cache {
        struct kmem_cache_node *node[MAX_NUMNODES];
 };
 
-/**
- * Calling this on allocated memory will check that the memory
- * is expected to be in use, and print warnings if not.
- */
-#ifdef CONFIG_SLUB_DEBUG
-extern bool verify_mem_not_deleted(const void *x);
-#else
-static inline bool verify_mem_not_deleted(const void *x)
-{
-       return true;
-}
-#endif
-
 #endif /* _LINUX_SLUB_DEF_H */

diff --git a/mm/slub.c b/mm/slub.c
index fd8f8655efc645b6d25da3c00494f285339c66d2..9162c99fb307ff443d9889ca2719f8dfdfb2bc27 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3326,43 +3326,6 @@ size_t ksize(const void *object)
 }
 EXPORT_SYMBOL(ksize);
 
-#ifdef CONFIG_SLUB_DEBUG
-bool verify_mem_not_deleted(const void *x)
-{
-       struct page *page;
-       void *object = (void *)x;
-       unsigned long flags;
-       bool rv;
-
-       if (unlikely(ZERO_OR_NULL_PTR(x)))
-               return false;
-
-       local_irq_save(flags);
-
-       page = virt_to_head_page(x);
-       if (unlikely(!PageSlab(page))) {
-               /* maybe it was from stack? */
-               rv = true;
-               goto out_unlock;
-       }
-
-       slab_lock(page);
-       if (on_freelist(page->slab_cache, page, object)) {
-               object_err(page->slab_cache, page, object,
-                               "Object is on free-list");
-               rv = false;
-       } else {
-               rv = true;
-       }
-       slab_unlock(page);
-
-out_unlock:
-       local_irq_restore(flags);
-       return rv;
-}
-EXPORT_SYMBOL(verify_mem_not_deleted);
-#endif
-
 void kfree(const void *x)
 {
        struct page *page;