From 5a47074f0279421778f97b1b1e75686696a5f42a Mon Sep 17 00:00:00 2001 From: Minchan Kim Date: Wed, 6 Sep 2017 16:20:10 -0700 Subject: zram: add config and doc file for writeback feature This patch adds document and kconfig for using of writeback feature. Link: http://lkml.kernel.org/r/1498459987-24562-10-git-send-email-minchan@kernel.org Signed-off-by: Minchan Kim Cc: Juneho Choi Cc: Sergey Senozhatsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/ABI/testing/sysfs-block-zram | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram index 451b6d882b2c..c1513c756af1 100644 --- a/Documentation/ABI/testing/sysfs-block-zram +++ b/Documentation/ABI/testing/sysfs-block-zram @@ -90,3 +90,11 @@ Description: device's debugging info useful for kernel developers. Its format is not documented intentionally and may change anytime without any notice. + +What: /sys/block/zram/backing_dev +Date: June 2017 +Contact: Minchan Kim +Description: + The backing_dev file is read-write and set up backing + device for zram to write incompressible pages. + For using, user should enable CONFIG_ZRAM_WRITEBACK. -- cgit v1.2.3