mm/zsmalloc: keep comments consistent with code

Some minor commebnt changes:

 1). update zs_malloc(),zs_create_pool() function header
 2). update "Usage of struct page fields"

Link: http://lkml.kernel.org/r/1467882338-4300-5-git-send-email-opensource.ganesh@gmail.com
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 1ce774503fa1..acfdf69184a7 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -20,6 +20,7 @@
  *      page->freelist(index): links together all component pages of a zspage
  *              For the huge page, this is always 0, so we use this field
  *              to store handle.
+ *      page->units: first object offset in a subpage of zspage
  *
  * Usage of struct page flags:
  *      PG_private: identifies the first component page
@@ -137,9 +138,6 @@
  */
 #define ZS_SIZE_CLASS_DELTA     (PAGE_SIZE >> CLASS_BITS)
 
-/*
- * We do not maintain any list for completely empty or full pages
- */
 enum fullness_group {
         ZS_EMPTY,
         ZS_ALMOST_EMPTY,
@@ -1532,6 +1530,7 @@ static unsigned long obj_malloc(struct size_class *class,
  * zs_malloc - Allocate block of given size from pool.
  * @pool: pool to allocate from
  * @size: size of block to allocate
+ * @gfp: gfp flags when allocating object
  *
  * On success, handle to the allocated object is returned,
  * otherwise 0.
@@ -2391,7 +2390,7 @@ static int zs_register_shrinker(struct zs_pool *pool)
 
 /**
  * zs_create_pool - Creates an allocation pool to work from.
- * @flags: allocation flags used to allocate pool metadata
+ * @name: pool name to be created
  *
  * This function must be called before anything when using
  * the zsmalloc allocator.