slab: Move kmalloc related function defs

Move these functions higher up in slab.h so that they are grouped with other
generic kmalloc related definitions.

Acked-by: Glauber Costa <glommer@parallels.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

include/linux/slab.h

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 5d168d7..ccbb376 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -148,6 +148,15 @@
 		(__flags), NULL)
 
 /*
+ * Common kmalloc functions provided by all allocators
+ */
+void * __must_check __krealloc(const void *, size_t, gfp_t);
+void * __must_check krealloc(const void *, size_t, gfp_t);
+void kfree(const void *);
+void kzfree(const void *);
+size_t ksize(const void *);
+
+/*
  * The largest kmalloc size supported by the slab allocators is
  * 32 megabyte (2^25) or the maximum allocatable page order if that is
  * less than 32 MB.
@@ -225,15 +234,6 @@
 void print_slabinfo_header(struct seq_file *m);
 
 /*
- * Common kmalloc functions provided by all allocators
- */
-void * __must_check __krealloc(const void *, size_t, gfp_t);
-void * __must_check krealloc(const void *, size_t, gfp_t);
-void kfree(const void *);
-void kzfree(const void *);
-size_t ksize(const void *);
-
-/*
  * Allocator specific definitions. These are mainly used to establish optimized
  * ways to convert kmalloc() calls to kmem_cache_alloc() invocations by
  * selecting the appropriate general cache at compile time.