Linux Kernel Rejects Xiaomi Engineer’s UFS File‑Based Optimization Patch

A Xiaomi engineer submitted a set of Linux kernel patches to implement JEDEC’s UFS File‑Based Optimization (UFS FBO) for better storage performance, but kernel maintainer Christoph Hellwig harshly criticized the proposal as completely misguided and unrelated to the kernel, making acceptance unlikely.

File-Based OptimizationLinux kernelPatch rejection

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Linux Kernel Rejects Xiaomi Engineer’s UFS File‑Based Optimization Patch

IT Services Circle

Nov 5, 2022 · Fundamentals

UFS File-Based Optimization (FBO) Standard and Its Controversial Linux Kernel Patch

JEDEC’s new UFS File‑Based Optimization (FBO) 1.0 standard defines an interface for host‑device communication to defragment file‑related LBA ranges, but a Xiaomi engineer’s Linux kernel patch implementing it was sharply criticized by kernel veteran Christoph Hellwig as impractical and unrelated to the kernel.

File-Based OptimizationJEDECLinux kernel

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UFS File-Based Optimization (FBO) Standard and Its Controversial Linux Kernel Patch

21CTO

Nov 4, 2022 · Fundamentals

Can File‑Based Optimization Save UFS Performance? Inside the Linux Kernel Debate

JEDEC’s new UFS File‑Based Optimization (FBO) 1.0 standard aims to improve flash storage performance by defragmenting LBA ranges tied to specific files, but a Xiaomi engineer’s patch proposal to implement it in Linux was sharply rejected by kernel veteran Christoph Hellwig, who called the idea fundamentally flawed.

File-Based OptimizationLinux kernelUFS

0 likes · 4 min read

Can File‑Based Optimization Save UFS Performance? Inside the Linux Kernel Debate