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authorYinghao Xie <yinghao.xie@samsung.com>2015-04-15 16:15:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 16:35:21 -0700
commit888fa374e625f3ee8f3cc2efebf52939d3bb6da1 (patch)
tree95442e2c2f2bae664bdec80a14ba51d36370e934 /mm
parentd02be50dba649b4246e0c1c4b7cb5d8a8d49de9a (diff)
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>
Diffstat (limited to 'mm')
-rw-r--r--mm/zsmalloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 1833fc9e09cb..7a48e5568d46 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -731,7 +731,8 @@ out:
* to form a zspage for each size class. This is important
* to reduce wastage due to unusable space left at end of
* each zspage which is given as:
- * wastage = Zp - Zp % size_class
+ * wastage = Zp % class_size
+ * usage = Zp - wastage
* where Zp = zspage size = k * PAGE_SIZE where k = 1, 2, ...
*
* For example, for size class of 3/8 * PAGE_SIZE, we should

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