[RFC PATCH 01/16] DM: dm-inplace-compress: an inplace compressed DM target

From: Shaohua Li This is a simple DM target supporting inplace compression. Its best suited for SSD. The underlying disk must support 512B sector size, the target only supports 4k sector size. Disk layout: |super|...meta...|..data...| Store unit is 4k (a block). Super is 1

[RFC PATCH 01/16] DM: dm-inplace-compress: an inplace compressed DM target

From: Shaohua Li This is a simple DM target supporting inplace compression. Its best suited for SSD. The underlying disk must support 512B sector size, the target only supports 4k sector size. Disk layout: |super|...meta...|..data...| Store unit is 4k (a block). Super is 1 block, which stores