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mm/zsmalloc: keep comments consistent with code

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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>
This commit is contained in:
Ganesh Mahendran 2016-07-28 15:47:54 -07:00 committed by Linus Torvalds
parent 64d90465f0
commit fd8544639e
1 changed files with 3 additions and 4 deletions
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7
mm/zsmalloc.c
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@ -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.