[PATCH v3 0/4] zram: implement deduplication in zram

js1304
2017-04-21T01:15:09Z

Changes from v2
o rebase to latest zram code
o manage alloc/free of the zram_entry in zram_drv.c
o remove useless RB_CLEAR_NODE
o set RO permission tor use_deup sysfs entry if CONFIG_ZRAM_DEDUP=n

Changes from v1
o reogranize dedup specific functions
o support Kconfig on/off
o update zram documents
o compare all the entries with same checksum (patch #4)

This patchset implements deduplication feature in zram. Motivation
is to save memory usage by zram. There are detailed description
about motivation and experimental results on patch #2 so please
refer it.

Thanks.

Joonsoo Kim (4):
zram: introduce zram_entry to prepare dedup functionality
zram: implement deduplication in zram
zram: make deduplication feature optional
zram: compare all the entries with same checksum for deduplication

Documentation/ABI/testing/sysfs-block-zram | 10 ++
Documentation/blockdev/zram.txt | 3 +
drivers/block/zram/Kconfig | 14 ++
drivers/block/zram/Makefile | 3 +-
drivers/block/zram/zram_dedup.c | 254 +++++++++++++++++++++++++++++
drivers/block/zram/zram_dedup.h | 45 +++++
drivers/block/zram/zram_drv.c | 184 +++++++++++++++++----
drivers/block/zram/zram_drv.h | 28 +++-
8 files changed, 503 insertions(+), 38 deletions(-)
create mode 100644 drivers/block/zram/zram_dedup.c
create mode 100644 drivers/block/zram/zram_dedup.h

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2.7.4