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@xxxxxxxxxx>
Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Cc: Hanjun Guo <guohanjun@xxxxxxxxxx>
---
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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