Module backend 

Re-exports

pub use self::io_uring::IoUringBackend;

pub use posix::PosixBackend;

Modules

io_uring

posix

Structs

BlockReadRequest

One block-granular read: land the whole block (all kv-heads’ K then V, block_bytes) into the device slot based at dst_dev_ptr (== ScratchPool::slot_dev_ptr(slot)). base_key carries kv_head = 0, kind = K by convention; only its layer and block are load-bearing.

ReadRequest

One read request: pull group from disk, land it at dst_dev_ptr.

Traits

StorageBackend

Functions

expand_blocks_to_groups

Expand each BlockReadRequest into the exact 2·nkv per-head ReadRequests the un-coalesced path issues, in the SAME order the caller loops emit (interleaved K(kh), V(kh) for kh in 0..nkv) with device destinations at dst + kh·gs (K) and dst + (nkv+kh)·gs (V).