IO_uring, NVMe and Other Block and Device Mapper Changes Merged for Linux 7.2
2 days ago
- #Linux Kernel
- #IO_uring
- #Storage Updates
- NVMe updates in Linux 7.2 include per-controller admin/I/O timeout sysfs attributes, PCI P2PDMA for multi-path devices, and a new sysfs group for per-controller counters.
- MD (software RAID) fixes for deadlocks in RAID1/RAID10 read error recovery and improved PCI P2PDMA propagation from member to RAID devices.
- Block subsystem now supports LLVM's Clang lock context analysis.
- IO_uring enhancements: task_work rework for performance, zero-copy receive (zcrx) notifications via CQE, reliability improvements for ZCRX, registered buffer improvements, and opcode filtering on IORING_OP_CONNECT.
- Device Mapper (DM) introduces dm-inlinecrypt for inline block device encryption, beneficial for UFS host controllers with inline encryption support.