The patch titled
Subject: zram: try to avoid worst-case scenario on same element pages
has been added to the -mm tree. Its filename is
zram-try-to-avoid-worst-case-scenario-on-same-element-pages-update.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/zram-try-to-avoid-worst-case-scenario-on-same-element-pages-update.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/zram-try-to-avoid-worst-case-scenario-on-same-element-pages-update.patch
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------------------------------------------------------
From: Taejoon Song <taejoon.song@xxxxxxx>
Subject: zram: try to avoid worst-case scenario on same element pages
fix off-by-one
Link: http://lkml.kernel.org/r/1578642001-11765-1-git-send-email-taejoon.song@xxxxxxx
Signed-off-by: Taejoon Song <taejoon.song@xxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/block/zram/zram_drv.c~zram-try-to-avoid-worst-case-scenario-on-same-element-pages-update
+++ a/drivers/block/zram/zram_drv.c
@@ -217,7 +217,7 @@ static bool page_same_filled(void *ptr,
if (val != page[last_pos])
return false;
- for (pos = 1; pos < last_pos - 1; pos++) {
+ for (pos = 1; pos < last_pos; pos++) {
if (val != page[pos])
return false;
}
_
Patches currently in -mm which might be from taejoon.song@xxxxxxx are
zram-try-to-avoid-worst-case-scenario-on-same-element-pages.patch
zram-try-to-avoid-worst-case-scenario-on-same-element-pages-update.patch
