This patchset introduces zcomp compression backend abstraction adding ability to support compression algorithms other than LZO; support for multi compression streams, making parallel compressions possible.
Diff from v4 (reviewed by Minchan Kim): -- renamed zcomp buffer_lock; removed src len and dst len from compress() and decompress(); not using term `buffer' and `workmem' in code and documentation; define compress() and decompress() functions for LZO backend; not using goto's; do not put idle zcomp_strm to idle list tail. Diff from v3: -- renamed compression backend and working memory structs as requested by Minchan Kim; fixed several issues noted by Minchan Kim. Sergey Senozhatsky (4): zram: introduce compressing backend abstraction zram: use zcomp compressing backends zram: zcomp support multi compressing streams zram: document max_comp_streams Documentation/ABI/testing/sysfs-block-zram | 9 +- Documentation/blockdev/zram.txt | 20 +++- drivers/block/zram/Makefile | 2 +- drivers/block/zram/zcomp.c | 155 +++++++++++++++++++++++++++++ drivers/block/zram/zcomp.h | 56 +++++++++++ drivers/block/zram/zcomp_lzo.c | 48 +++++++++ drivers/block/zram/zram_drv.c | 102 ++++++++++++------- drivers/block/zram/zram_drv.h | 10 +- 8 files changed, 355 insertions(+), 47 deletions(-) create mode 100644 drivers/block/zram/zcomp.c create mode 100644 drivers/block/zram/zcomp.h create mode 100644 drivers/block/zram/zcomp_lzo.c -- 1.9.0.rc3.260.g4cf525c -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
