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Subject[PATCH v2] mm/zsmalloc: fix comment in zsmalloc
Date
The class index and fullness group are not encoded in (first)page->mapping
any more, after commit 3783689a1aa8 ("zsmalloc: introduce zspage
structure"). Instead, they are store in struct zspage. Just delete this
unneeded comment.

Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
---
v2:
* just delete the comment for it is no need anymore, suggested by Sergey.

mm/zsmalloc.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 9cc3c0b..08c1a84 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -268,10 +268,6 @@ struct zs_pool {
#endif
};

-/*
- * A zspage's class index and fullness group
- * are encoded in its (first)page->mapping
- */
#define FULLNESS_BITS 2
#define CLASS_BITS 8
#define ISOLATED_BITS 3
--
1.7.12.4
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