Goal

As a builder of CentOS live images in CentOS Hyperscale and Alternative Images, I want to be able to use Zstd compression with EROFS. This is to facilitate a better balance of resource usage for compression and decompression, as LZMA is a little too slow and resource hungry. I also want to have thread priority support enabled to make the environment more responsive.

Acceptance criteria

• CONFIG_EROFS_FS_PCPU_KTHREAD is enabled in the kernel
• CONFIG_EROFS_FS_ZIP_ZSTD is enabled in the kernel