diff options
| author | Minchan Kim <minchan@kernel.org> | 2017-09-06 16:20:10 -0700 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2018-10-04 14:16:25 +0530 |
| commit | 1b89745386d9e0be76eca0182755a7026b147a7c (patch) | |
| tree | 79067425205cf642e2e2239dc010fd56b8a12e39 /drivers/block | |
| parent | 3249ca4a577256658349ddf2585bb9e272fb5d55 (diff) | |
UPSTREAM: 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 <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 5a47074f0279421778f97b1b1e75686696a5f42a)
Signed-off-by: Peter Kalauskas <peskal@google.com>
Bug: 112488418
Change-Id: I9ec2230739a6468a4481a90a9c9f966badf9ac48
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/zram/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig index b8ecba6dcd3b..7cd4a8ec3c8f 100644 --- a/drivers/block/zram/Kconfig +++ b/drivers/block/zram/Kconfig @@ -13,3 +13,15 @@ config ZRAM disks and maybe many more. See zram.txt for more information. + +config ZRAM_WRITEBACK + bool "Write back incompressible page to backing device" + depends on ZRAM + default n + help + With incompressible page, there is no memory saving to keep it + in memory. Instead, write it out to backing device. + For this feature, admin should set up backing device via + /sys/block/zramX/backing_dev. + + See zram.txt for more infomration. |