Hi Richard, Richard Weinberger <[email protected]> wrote on Mon, 25 Jan 2021 00:19:59 +0100:
> I'm happy to announce the first non-RFC version of this patch set. > Over the xmas holidays I found some time to experiment with various userspace > implementations of MTDs and gave the kernel side more fine-tuning. > > Rationale: > ---------- > > When working with flash devices a common task is emulating them to run various > tests or inspect dumps from real hardware. To achieve that we have plenty of > emulators in the MTD subsystem: mtdram, block2mtd, nandsim. > > Each of them implements an ad-hoc MTD and have various drawbacks. > Over the last years some developers tried to extend them but these attempts > often got rejected because they added just more adhoc feature instead of > addressing overall problems. > > MUSE is a novel approach to address the need of advanced MTD emulators. > Advanced means in this context supporting different (vendor specific) image > formats, different ways for fault injection (fuzzing) and recoding/replaying > IOs to emulate power cuts. > > The core goal of MUSE is having the complexity on the userspace side and > only a small MTD driver in kernelspace. > While playing with different approaches I realized that FUSE offers everything > we need. So MUSE is a little like CUSE except that it does not implement a > bare character device but an MTD. I can't tell if your MUSE implementation is right but it looks fine on the MTD side. This is following the right path, I look forward to merging it soon! Thanks for your contribution, Miquèl
