2.6.32 merge window, part 3

The 2.6.32 merge window closed on September 27 with the 2.6.32-rc1 release; this merge window ran a little longer than usual to make up for the distractions of LinuxCon and the Linux Plumbers Conference. Changes merged since last week's update include:

• The 9p (Plan9) filesystem has been updated to make use of the FS-cache caching layer.

• Control group hierarchies can now have names bound to them.

• The fcntl() system call supports new F_SETOWN_EX and F_GETOWN_EX operations. They differ from F_SETOWN and F_GETOWN in that they direct SIGIO signals to a specific thread within a multi-threaded application.

• The HWPOISON subsystem has been merged.

• Framebuffer compression support has been added for Intel graphics chipsets. Compression reduces the amount of work involved in driving the display, leading to a claimed 0.5 watt reduction in power consumption. A set of tracepoints has also been added to the Intel graphics driver.

• There are new drivers for ADP5588 I2C QWERTY Keypad and IO Expander devices, OpenCores keyboard controllers, Atmel AT42QT2160 touch sensor chips, MELFAS MCS-5000 touchscreen controllers, Maxim MAX7359 key switch controllers, ARM "tightly-coupled memory" areas, Palm Tungsten|C handheld systems, Iskratel Electronics XCEP boards, EMS CPC-USB/ARM7 CAN/USB interfaces, Broadcom 43xx-based SDIO devices, Avionic Design Xanthos watchdog and backlight devices, WM831x PMIC backlight devices, Samsung LMS283GF05 LCDs, Analog Devices ADP5520/ADP5501 MFD PMIC backlight devices, and WM831x PMIC status LEDs.

• The proc_handler function prototype, used in sysctl handling, has lost its unused struct file argument.

In the end, 8742 non-merge changesets were incorporated in the 2.6.32 merge window.

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