From: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Subject: mm/zsmalloc: fix comment in zsmalloc
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.
Link: http://lkml.kernel.org/r/1486620822-36826-1-git-send-email-xieyisheng1@xxxxxxxxxx
Signed-off-by: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Cc: Hanjun Guo <guohanjun@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zsmalloc.c | 4 ----
1 file changed, 4 deletions(-)
diff -puN mm/zsmalloc.c~mm-zsmalloc-fix-comment-in-zsmalloc mm/zsmalloc.c
--- a/mm/zsmalloc.c~mm-zsmalloc-fix-comment-in-zsmalloc
+++ a/mm/zsmalloc.c
@@ -267,10 +267,6 @@ 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
_
--
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