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Date:	Mon, 15 Sep 2014 23:49:27 +0900
From:	Sergey Senozhatsky <>
To:	Andrew Morton <>
Cc:	Minchan Kim <>,
	Jerome Marchand <>,
	Nitin Gupta <>,
	Chao Yu <>,,
	Sergey Senozhatsky <>
Subject: [PATCHv3] zram: use notify_free to account all free notifications


This patch change the way zram uses `notify_free' stat attr. Currently,
this attr accounts only swap free notifications, iow used only when zram
device is a swap device. The patch preserves the existing behaviour and
additionally makes `notify_free' universal, so it's also used by zram to
account REQ_DISCARDs when zram is not used as a swap device.

Please refer to:

-- account all notifications, including those that hit ZRAM_ZERO page
-- fix accounting error found by Minchan Kim.

Sergey Senozhatsky (1):
  zram: use notify_free to account all free notifications

 Documentation/ABI/testing/sysfs-block-zram | 13 ++++++++-----
 drivers/block/zram/zram_drv.c              |  1 +
 2 files changed, 9 insertions(+), 5 deletions(-)


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