bootmem: reorder interface functions and add a missing one

Impact: cleanup and addition of missing interface wrapper

The interface functions in bootmem.h was ordered in not so orderly
manner.  Reorder them such that

* functions allocating the same area group together -
  ie. alloc_bootmem group and alloc_bootmem_low group.

* functions w/o node parameter come before the ones w/ node parameter.

* nopanic variants are immediately below their panicky counterparts.

While at it, add alloc_bootmem_pages_node_nopanic() which was missing.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Johannes Weiner <hannes@saeurebad.de>

1 files changed, 17 insertions, 13 deletions

diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 3a87f93081ed..455d83219fae 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -65,22 +65,20 @@ extern void free_bootmem(unsigned long addr, unsigned long size);
 #define BOOTMEM_DEFAULT         0
 #define BOOTMEM_EXCLUSIVE       (1<<0)
 
-extern int reserve_bootmem_node(pg_data_t *pgdat,
-                                 unsigned long physaddr,
-                                 unsigned long size,
-                                 int flags);
 extern int reserve_bootmem(unsigned long addr,
                            unsigned long size,
                            int flags);
-extern void *__alloc_bootmem_nopanic(unsigned long size,
+extern int reserve_bootmem_node(pg_data_t *pgdat,
+                                unsigned long physaddr,
+                                unsigned long size,
+                                int flags);
+
+extern void *__alloc_bootmem(unsigned long size,
                              unsigned long align,
                              unsigned long goal);
-extern void *__alloc_bootmem(unsigned long size,
+extern void *__alloc_bootmem_nopanic(unsigned long size,
                                      unsigned long align,
                                      unsigned long goal);
-extern void *__alloc_bootmem_low(unsigned long size,
-                                 unsigned long align,
-                                 unsigned long goal);
 extern void *__alloc_bootmem_node(pg_data_t *pgdat,
                                   unsigned long size,
                                   unsigned long align,
@@ -89,6 +87,9 @@ extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
                                   unsigned long size,
                                   unsigned long align,
                                   unsigned long goal);
+extern void *__alloc_bootmem_low(unsigned long size,
+                                 unsigned long align,
+                                 unsigned long goal);
 extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
                                       unsigned long size,
                                       unsigned long align,
@@ -98,18 +99,21 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
         __alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_nopanic(x) \
         __alloc_bootmem_nopanic(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
-#define alloc_bootmem_low(x) \
-        __alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
 #define alloc_bootmem_pages(x) \
         __alloc_bootmem(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_pages_nopanic(x) \
         __alloc_bootmem_nopanic(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
-#define alloc_bootmem_low_pages(x) \
-        __alloc_bootmem_low(x, PAGE_SIZE, 0)
 #define alloc_bootmem_node(pgdat, x) \
         __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_pages_node(pgdat, x) \
         __alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_pages_node_nopanic(pgdat, x) \
+        __alloc_bootmem_node_nopanic(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
+
+#define alloc_bootmem_low(x) \
+        __alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
+#define alloc_bootmem_low_pages(x) \
+        __alloc_bootmem_low(x, PAGE_SIZE, 0)
 #define alloc_bootmem_low_pages_node(pgdat, x) \
         __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)