PM: Trivial fixes

Fix the definition of BM_BITS_PER_BLOCK and kerneldoc
description of create_bm_block_list().

[rjw: Added changelog.]

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index bf06658f2052ebc7d71aab63f31e7a36ee836c3c..97955b0e44f453969c8652b49d06d6d861aa62b6 100644 (file)
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -233,7 +233,7 @@ static void *chain_alloc(struct chain_allocator *ca, unsigned int size)
 
 #define BM_END_OF_MAP  (~0UL)
 
-#define BM_BITS_PER_BLOCK      (PAGE_SIZE << 3)
+#define BM_BITS_PER_BLOCK      (PAGE_SIZE * BITS_PER_BYTE)
 
 struct bm_block {
        struct list_head hook;  /* hook into a list of bitmap blocks */
@@ -275,7 +275,7 @@ static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free);
 
 /**
  *     create_bm_block_list - create a list of block bitmap objects
- *     @nr_blocks - number of blocks to allocate
+ *     @pages - number of pages to track
  *     @list - list to put the allocated blocks into
  *     @ca - chain allocator to be used for allocating memory
  */