Linux 4.2

Here are some of the more interesting changes of this kernel version.
The Linux security module stacking patches have been merged, finally giving the kernel the ability to combine security modules in a generic manner.
A new packet classifier called “Flower” has been added. With Flower, “you will be able to classify packets based on a configurable combination of packet keys and masks.” This classifier appears to be entirely lacking in documentation, unfortunately.
A driver for GENEVE (Generic Network Virtualization Encapsulation) tunnels has been added to the networking subsystem.
The netfilter subsystem has gained support for ingress-time packet classification.
Unix-domain sockets now support the splice() system call.
Support for the delay-gradient congestion-control algorithm has been merged.
The F2FS filesystem has gained support for a number of features including per-file encryption.
The control group writeback patches have been merged. This work allows for better control of data writeback within control groups, fixing an area that has not worked well for a long time.
The thermal control subsystem has a new power-allocator governor, designed to divide power among heat sources while keeping the overall temperature of the system within bounds.
The XFS filesystem has gained the ability to directly access persistent-memory devices via the DAX interface.
The CIFS filesystem can now handle (in an experimental mode) version 3.1.1 of the SMB protocol.
As always there is a long list of newly supported hardware. Have a look at the changelog.

This entry was posted on Monday, September 7th, 2015 at 9:16 PM and is filed under linux.

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