The 5.17 kernel has been released
Linus has released the 5.17 kernel.
So we had an extra week of at the end of this release cycle, andI'm happy to report that it was very calm indeed. We couldprobably have skipped it with not a lot of downside, but we did geta few last-minute reverts and fixes in and avoid some brown-paperbugs that would otherwise have been stable fodder, so it's all good
Some of the significant features in this release includeKCSANsupport for the arm64 architecture,the bpf_loop() helper,improved ID-mapped filesystem mounts,the reference-count trackinginfrastructure,a switch to BLAKE2s for the random-number generator,a rewrittennetwork filesystem caching layer,straight-line speculation mitigation,and more.See the LWN merge-window summaries(part 1,part 2) andthe KernelNewbies 5.17page for more details.