Linux 5.4 Developments and Merges
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Linux 5.4 Power Management Updates Sent In But Without AMD CPPC Changes
The Linux 5.4 power management changes have been submitted for this next version of the Linux kernel.
This time around the power management work isn't particularly exciting with no breakthroughs for the Intel P-State driver, no major changes to the other prominent CPUFreq drivers/governors, and no AMD CPPC support for their new processors.
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Linux 5.4 Preps For Intel Tiger Lake, Elkhart Lake & Lightning Mountain + Killing MPX
The Linux 5.4 x86/cpu changes are as busy as always on the Intel side.
The Linux 5.4 x86/cpu code changes include cleaning up the Intel CPU naming conventions within definitions in the code. The changes now provide a standardized convention for dealing with Intel CPU core names and their variations within the kernel code rather than the naming convention mess that had come about over the years. This doesn't impact end-users, but cleans up the kernel code to be less confusing.
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Microsoft exFAT File-System Mailed In For Linux 5.4 Along With Promoted EROFS & Greybus
Greg Kroah-Hartman began volleying his Linux 5.4 kernel pull requests today of the subsystems he oversees. The most significant of this morning's pull requests are the staging area changes that include the Microsoft exFAT file-system support.
As we've been expecting, Linux 5.4 is bringing exFAT support after last month's surprise announcement by Microsoft publishing the exFAT specification and giving it an open-source blessing for integrating the file-system support at long last into the Linux kernel.
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Improved Fscrypt Sent In For Linux 5.4 To Offer Better Native File Encryption Handling
In addition to submitting the FS-VERITY file authentication code for Linux 5.4, Google's Eric Biggers has sent out his big update to the fscrypt file encryption framework for this next kernel revision.
Fscrypt as a reminder is a kernel framework providing native file encryption support to file-systems. Currently Fscrypt is used by EXT4, F2FS, and UBIFS while being used by Google for at least new Android use-cases. Fscrypt has been around for several kernel cycles now but for Linux 5.4 is seeing its first big update.
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