mm/zsmalloc.c: fix comment for get_pages_per_zspage
Signed-off-by: Yinghao Xie <yinghao.xie@sumsung.com> Suggested-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -731,7 +731,8 @@ out:
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* to form a zspage for each size class. This is important
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* to reduce wastage due to unusable space left at end of
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* each zspage which is given as:
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* wastage = Zp - Zp % size_class
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* wastage = Zp % class_size
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* usage = Zp - wastage
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* where Zp = zspage size = k * PAGE_SIZE where k = 1, 2, ...
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*
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* For example, for size class of 3/8 * PAGE_SIZE, we should
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