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authorYisheng Xie <xieyisheng1@huawei.com>2017-02-24 14:59:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-24 17:46:56 -0800
commitb538e422e41fd5ec8c059bde03d5504bb62bf0d1 (patch)
tree7692898f979f96007644697db98cebe0a547f8cc /mm
parentad69444e75d77981291ccf807f48d81e8fca010f (diff)
downloadlinux-b538e422e41fd5ec8c059bde03d5504bb62bf0d1.tar.gz
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@huawei.com Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com> Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/zsmalloc.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 25d0fb6..b7b1fb6 100644
--- a/mm/zsmalloc.c
+++ b/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