| config FS_EROFS |
| bool "Enable EROFS filesystem support" |
| help |
| This provides support for reading images from EROFS filesystem. |
| EROFS (Enhanced Read-Only File System) is a lightweight read-only |
| file system for scenarios which need high-performance read-only |
| requirements. |
| |
| It also provides fixed-sized output compression support, which |
| improves storage density, keeps relatively higher compression |
| ratios, which is more useful to achieve high performance for |
| embedded devices with limited memory. |
| |
| config FS_EROFS_ZIP |
| bool "EROFS Data Compression Support" |
| depends on FS_EROFS |
| select LZ4 |
| default y |
| help |
| Enable fixed-sized output compression for EROFS. |
| If you don't want to enable compression feature, say N. |
| |
| config FS_EROFS_ZIP_DEFLATE |
| bool "EROFS DEFLATE compressed data support" |
| depends on FS_EROFS_ZIP |
| select ZLIB |
| help |
| Saying Y here includes support for reading EROFS file systems |
| containing DEFLATE compressed data. It gives better compression |
| ratios than the default LZ4 format, while it costs more CPU |
| overhead. |
| |
| DEFLATE support is an experimental feature for now and so most |
| file systems will be readable without selecting this option. |
| |
| If unsure, say N. |