Kernel-Log – Was 2.6.30 bringt (5): Architektur und Infrastruktur
Seite 3: Nachzügler und kleine Perlen
Nachzügler und kleine Perlen
In einigen Bereichen, über die das Kernel-Log im Rahmen der Mini-Serie "Was 2.6.30 bringt" bereits berichtet hat, gab es nochmal einige weitere Änderungen. So war die Stabilisierungsphase zwar schon recht weit fortgeschritten, dennoch nahm Torvalds im SCSI-Subsystem noch einen neuen Treiber namens fnic auf. Er eignet sich für PCI-Express FCoE (Fibre Channel over Ethernet) HBA (Host Bus Adapter) von Cisco. Und nach einem neuen ISA-Sound-Treiber bei 2.6.30 gab es noch eine weitere Änderung für Uralt-Hardware: Der Treiber 3c509 spricht nun auch einige 3com-Netzwerkchips an, die sich in EISA-Systemen finden. Weitere Nachzügler finden sich in der Liste ganz am Ende des Artikels.
Bei den bisher genannten Änderungen handelt es sich nur um die wichtigsten Neuerungen, die die Kernel-Hacker am Architektur-Code und der Infrastruktur vorgenommen haben. Zahlreiche weitere Änderungen finden sich in der folgenden Liste mit den Überschriften des jeweiligen Commits im Hauptentwicklungszweig; über die Links gelangt man direkt zur Änderungen im Webfrontend des Hauptentwicklungszweigs, wo der Commit-Kommentar und der Patch selbst zahlreiche weitere Informationen zu diesen vielleicht etwas weniger wichtigen, aber keineswegs unbedeutenden Änderungen vermitteln.
Architektur-Code
x86 (x86-32, x86-64)
- docs, x86: add nox2apic back to kernel-parameters.txt
- Documentation/x86/boot.txt: modify fieldname
- percpu: add optimized generic percpu accessors
- stackprotector: use canary at end of stack to indicate overruns at oops time
- x86: add linux kernel support for YMM state
- x86: allow more than 8 cpus to be used on 32-bit
- x86: cleanup, rename CONFIG_X86_NON_STANDARD to CONFIG_X86_EXTENDED_PLATFORM
- x86: convert to the new dynamic percpu allocator
- x86: disable X86_PTRACE_BTS for now
- x86: DMI match for the Sony VGN-Z540N as it needs BIOS reboot
- x86/doc: mini-howto for using earlyprintk=dbgp
- x86, documentation: kernel-parameters replace X86-32,X86-64 with X86
- x86: Fix performance regression caused by paravirt_ops on native kernels
- x86: fully honor "nolapic"
- x86: hpet: allow force enable on ICH10 HPET
- x86: implement x86_32 stack protector
- x86: improve the help text of X86_EXTENDED_PLATFORM
- x86: introduce noxsave boot parameter
- x86, kexec: x86_64: add kexec jump support for x86_64
- x86: make lazy %gs optional on x86_32
- x86: make Voyager use x86 per-cpu setup.
- x86, mce, cmci: add CMCI support
- x86, mce: implement dynamic machine check banks support
- x86: replace CONFIG_X86_SMP with CONFIG_SMP
- x86: set X86_FEATURE_TSC_RELIABLE
- x86: unify stackprotector features
- x86: update description for memtest boot parameter
ARM
- ARM: 5353/1: fbdev: add E-Ink Broadsheet controller support v3
- ARM: 5354/1: mach-pxa: add AM300 platform driver v3
- ARM: 5355/1: Adding support for the HTC Himalaya and its framebuffer
- ARM: 5372/1: ACS5K: Core board support for the ACS-5000
- ARM: 5412/1: XSCALE: add ice dcc support
- ARM: add CONFIG_HIGHMEM option
- ARM: Add Gemini architecture v3
- ARM: add i.MX35 build support
- ARM: Add support for FA526 v2
- ARM: Add Synertronixx scb9328 board support
- ARM: Kirkwood: Marvell SheevaPlug support
- ARM: mv78xx0: Add Marvell RD-78x00-mASA Reference Design support
- ARM: MX31/MX35: Add l2x0 cache support
- ARM: OMAP3: Add support for 3430 SDP, v4
- ARM OMAP3: Initial support for Nokia RX-51, v3
- ARM: pxa: add base support for Marvell's PXA168 processor line
- ARM: pxa: add base support for pxa910-based TavorEVB
- ARM: pxa: add base support for pxa910-based TTC_DKB
- ARM: pxa: add eXeda platform support
- ARM: pxa: Add support for suspend on PalmTX, T5 and LD
- ARM: pxa: PalmLD initial support
- ARM: pxa: PalmT5 initial support
- ARM: pxa: Palm Tungsten E2 basic support
- Gemini: Add support for Teltonika RUT100
- Gemini: gpiolib based GPIO support v2
- mx31ads: Initial support for Wolfson Microelectronics 1133-EV1 module
Power
- AMCC PPC 460SX redwood SoC platform initial framework
- powerpc/5200: Add support for the Media5200 board from Freescale
- powerpc/83xx: Add power management support for MPC837x boards
- powerpc/85xx: Add support for the "socrates" board (MPC8544).
- powerpc/amigaone: Add platform support for AmigaOne
- powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
- powerpc: Hook up rtc-generic, and kill rtc-ppc
- powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
- powerpc/ps3: Add rtc-ps3
Various
- Add Merisc board support
- m68k: mac - Add SWIM floppy support
- Move dtc and libfdt sources from arch/powerpc/boot to scripts/dtc
- S390: dasd: add High Performance FICON support
- sh: Add in PCI bus for DMA API debugging.
- sh: Add support for DMA API debugging.
- sh: Add support for SH7786 CPU subtype.
- sh: add support for SMSC Polaris platform
- sh: dma-sh updates for multi IRQ and new SH-4A CPUs.
- sh: espt-giga board support
- sh: hibernation support
- sh: Plug in support for ARCH=sh64 using sh SRCARCH.
- sh: urquell: Add smc91x support and update defconfig accordingly.
- sh: Urquell board support.
- xtensa: beat Kconfig into shape
- xtensa: nommu support
- xtensa: platform: s6105
Virtualization
- KVM: Add support to disable MSI for assigned device
- KVM: New guest debug interface
- KVM: ppc: E500 core-specific code
- KVM: SVM: Add helper functions for nested SVM
- KVM: Userspace controlled irq routing
- lguest: use KVM hypercalls
- xen: mask XSAVE from cpuid
Infrastructure
bzip2/lzma
- bzip2/lzma: centralize format detection
- bzip2/lzma: clarify the meaning of the CONFIG_RD_ options
- bzip2/lzma: comprehensible error messages for missing decompressor
- bzip2/lzma: consistently capitalize LZMA in Kconfig
- bzip2/lzma: DECOMPRESS_GZIP should select ZLIB_INFLATE
- bzip2/lzma: don't ask for compression mode for the default initramfs
- bzip2/lzma: don't leave empty files around on failure
- bzip2/lzma: don't stop search at first unconfigured compression
- bzip2/lzma: fix built-in initramfs vs CONFIG_RD_GZIP
- bzip2/lzma: fix constant in decompress_inflate
- bzip2/lzma: fix decompress_inflate.c vs multi-block-with-embedded-filename
- bzip2/lzma: handle failures from bzip2 and lzma correctly
- bzip2/lzma: make config machinery an arch configurable
- bzip2/lzma: make flush_buffer() unconditional
- bzip2/lzma: make internal initramfs compression configurable
- bzip2/lzma: move CONFIG_RD_* options under CONFIG_EMBEDDED
- bzip2/lzma: move initrd/ramfs options out of BLK_DEV
- bzip2/lzma: proper Kconfig dependencies for the ramdisk options
- bzip2/lzma: update boot protocol specification
- bzip2/lzma: use a table to search for initramfs compression formats
Crypto
- crypto: aes - Export x86 AES encrypt/decrypt functions
- crypto: api - Use dedicated workqueue for crypto subsystem
- crypto: compress - Add pcomp interface
- crypto: zlib - New zlib crypto module, using pcomp
- hwrng: timeriomem - New driver
Fastboot
- ACPI: battery: asynchronous init
- async: remove the temporary (2.6.29) "async is off by default" code
- driver synchronization: make scsi_wait_scan more advanced
- fastboot: remove duplicate unpack_to_rootfs()
- ide/net: flip the order of SATA and network init
- PM/Hibernate: Wait for SCSI devices scan to complete during resume
MM
- memcg: fix documentation
- mm: add documentation describing what tsk->active_mm means vs tsk->mm
- mm: add /proc controls for pdflush threads
- mm: close page_mkwrite races
- mm: reformat the Unevictable-LRU documentation
- nommu: make the initial mmap allocation excess behaviour Kconfig configurable
- percpu: implement new dynamic percpu allocator
- percpu, module: implement reserved allocation and use it for module percpu variables
- slub: add Documentation/ABI/testing/sysfs-kernel-slab
- slub: add min_partial sysfs tunable
- writeback: double the dirty thresholds
- x86, percpu: setup reserved percpu area for x86_64
PCI and ACPI
- ACPI: acpi_enforce_resource=strict by default
- ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
- ACPI: Adjust Kelvin offset to match local implementation
- ACPICA: Add function to handle PM1 control registers
- ACPICA: Add override for dynamic tables
- ACPICA: Allow OS override of all ACPI tables
- ACPICA: New: I/O port protection
- ACPI: cap off P-state transition latency from buggy BIOSes
- acpi: fix of pmtimer overflow that make Cx states time incorrect
- ACPI: Idle C-states disabled by max_cstate should not disable the TSC
- ACPI: move thermal trip handling to generic thermal layer
- ACPI processor: introduce module parameter processor.ignore_tpc
- ACPI processor: reset the throttling state once it's invalid
- ACPI: video: DMI workaround another broken Acer BIOS enabling display brightness
- Enable PNPACPI _PSx Support, v3
- genirq: add doc to struct irqaction
- genirq: deprecate __do_IRQ
- genirq: deprecate obsolete typedefs and defines
- intel-iommu: Enable DMAR on 32-bit kernel.
- intel-iommu: fix PCI device detach from virtual machine
- Intel IOMMU Suspend/Resume Support - DMAR
- Intel IOMMU Suspend/Resume Support - Interrupt Remapping
- Intel IOMMU Suspend/Resume Support - Queued Invalidation
- intel-iommu: VT-d page table to support snooping control bit
- I/O port protection: update for windows compatibility.
- PCI: add remove_id sysfs entry
- PCI: add SR-IOV API for Physical Function driver
- PCI: allow assignment of memory resources with a specified alignment
- PCI: document SR-IOV sysfs entries
- PCI: handle SR-IOV Virtual Function Migration
- PCI Hotplug: restore fakephp interface with complete reimplementation
- PCI Hotplug: schedule fakephp for feature removal
- PCI: initialize and release SR-IOV capability
- PCI: Introduce pci_rescan_bus()
- PCI: Introduce /sys/bus/pci/devices/.../remove
- PCI: Introduce /sys/bus/pci/devices/.../rescan
- PCI: Introduce /sys/bus/pci/rescan
- PCI: manual for SR-IOV user and driver developer
- PCI MSI: Add example request loop to MSI-HOWTO.txt
- PCI quirk: disable MSI on VIA VT3364 chipsets
- PCI: Setup disabled bridges even if buses are added
- PCI: SR-IOV quirk for Intel 82576 NIC
- PCI/x86: detect host bridge config space size w/o using quirks
- PCI/x86: document pci=earlydump argument
- Rewrite MSI-HOWTO
- ssb: Add PMU support
- thermal: support forcing support for passive cooling
- x86 ACPI: Add support for Always Running APIC timer
- x86, ACPI: add support for x2apic ACPI extensions
Powermanagement
- CPUFREQ: Change link order of x86 cpufreq modules
- CPUFREQ: Introduce /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_transition_latency
- CPUFREQ: ondemand/conservative: deprecate sampling_rate{min,max}
- CPUFREQ: ondemand/conservative: sanitize sampling_rate restrictions
- CPUFREQ: Prevent p4-clockmod from auto-binding to the ondemand governor.
- PCI PM: Make pci_set_power_state() handle devices with no PM support
- PCI PM: Put devices into low power states during late suspend (rev. 2)
- PCI PM: Restore config spaces of all devices during early resume
- PM: Change hibernation code ordering
- PM: Change suspend code ordering
- PM: Introduce functions for suspending and resuming device interrupts
- PM/Suspend: Introduce two new platform callbacks to avoid breakage
Scheduler
- sched: activate active load balancing in new idle cpus
- sched: add hierarchical accounting to cpu accounting controller
- sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
- sched: allow architectures to specify sched_clock_stable
- sched, documentation: update scheduler header file paths
- sched: favour lower logical cpu number for sched_mc balance
- sched: framework for sched_mc/smt_power_savings=N
- sched: improve preempt debugging
- sched, latencytop: incorporate review feedback from Andrew Morton
- sched: nominate preferred wakeup cpu
Security
- netlabel: Label incoming TCP connections correctly in SELinux
- proc: avoid information leaks to non-privileged processes
- TPM: sysfs functions consolidation
Tomoyo:
- Common functions for TOMOYO Linux.
- Domain transition handler.
- File operation restriction part.
- Kconfig and Makefile
- LSM adapter functions.
- MAINTAINERS info
- Memory and pathname management functions.
- tomoyo: add Documentation/tomoyo.txt
- tomoyo: version bump to 2.2.0.
Tracing
- blkftrace: binary tracing, synthesizing old format
- blktrace: print human-readable act_mask
- debug_objects: add boot-parameter toggle to turn object debugging off again
- doc: add trace_buf_size description to kernel-parameters.txt
- doc: mmiotrace.txt, buffer size control change
- Documentation/ftrace.txt: update
- ftrace: add pretty print function for traceon and traceoff hooks
- ftrace: add stack trace to function tracer
- ftrace: add traceon traceoff commands to enable/disable the buffers
- ftrace: event profile hooks
- ftrace: fix documentation typo s/trace_max_latency/tracing_max_latency/
- ftrace, ia64: IA64 dynamic ftrace support
- ftrace: trace different functions with a different tracer
- function-graph: add option for include sleep times
- function-graph: add proper initialization for init task
- function-graph: show binary events as comments
- kmemtrace: Additional documentation.
- kmemtrace: Fix typos in documentation.
- kmemtrace: remove config option for enabling tracing at boot
- kprobes: support kretprobe and jprobe per-probe disabling
- kprobes: support per-kprobe disabling
- sysrq: fix ftrace help msg Commit: 3871f2ffe53db3cef4fe0c18993ad9e6e0f69408 doc.
- trace: let boot trace be chosen by command line
- trace: mmiotrace to the tracer menu in Kconfig
- tracing: add binary buffer files for use with splice
- tracing: add event trace infrastructure
- tracing: add format files for ftrace default entries
- tracing: add global-clock option to provide cross CPU clock to traces
- tracing: add options directory and core option files
- tracing: add per-event filtering
- tracing: add per-subsystem filtering
- tracing: add run-time field descriptions for event filtering
- tracing: add schedule events to event trace
- tracing: add subsystem level to trace events
- tracing: consolidate documents
- tracing/core: drop the old trace_printk() implementation in favour of trace_bprintk()
- tracing: Documentation / sample code fixes for tracepoints
- tracing: Don't use tracing_record_cmdline() in workqueue tracer
- tracing: explain why stack tracer is empty
- tracing/ftrace: handle more than one stat file per tracer
- tracing/ftrace: provide the base infrastructure for histogram tracing
- tracing/ftrace: syscall tracing infrastructure, basics
- tracing/function-graph-tracer: provide documentation for the function graph tracer
- tracing/function-graph-tracer: various fixes and features
- tracing, genirq: add irq enter and exit trace events
- tracing: infrastructure for supporting binary record
- tracing/kmemtrace: normalize the raw tracer event to the unified tracing API
- tracing: make event directory structure
- tracing/syscalls: core infrastructure for syscalls tracing, enhancements
- tracing/x86: basic implementation of syscall tracing for x86
- Update /debug/tracing/README
- x86, ftrace, hw-branch-tracer: documentation
Various
- Add README.AddingFirmware file. Basically telling people not to.
- cgroup: CSS ID support
- cgroups: more documentation for remount and release_agent
- cpuacct: add per-cgroup utime/stime statistics
- dma-debug: add checks for kernel text and rodata
- dma-debug: add core checking functions
- dma-debug: add debugfs interface
- dma-debug: add header file and core data structures
- dma-debug: add Kconfig entry
- dma-debug: add kernel command line parameters
- dma-debug: Documentation update
- dma-debug: x86 architecture bindings
- dma-mapping: update the old macro DMA_nBIT_MASK related documentations
- dynamic debug: combine dprintk and dynamic printk
- dynamic debug: update docs
- init: make initrd/initramfs decompression failure a KERN_EMERG event
- kbuild: introduce destination-y for exported headers
- kbuild: introduce subdir-ccflags-y
- kbuild: make it possible for the linker to discard local symbols from vmlinux
- kbuild: support include/generated
- kexec: add dmesg log symbols to /proc/vmcoreinfo lists
- Ksplice: Add functions for walking kallsyms symbols
- LANANA: Change of management and resync
- memcg: fix OOM killer under memcg
- memcg: use CSS ID
- module: clarify the force-loading taint message.
- module: Export symbols needed for Ksplice
- printk: introduce printk_once()
- res_counter: update documentation
- UIO: Add name attributes for mappings and port regions
- uio: add the uio_aec driver
- vsprintf: add binary printf
- vsprintf: unify the format decoding layer for its 3 users
Late arrivals
File systems
- CIFS: Add new nostrictsync cifs mount option to avoid slow SMB flush
- CIFS: DFS no longer experimental
- cifs: vary timeout on writes past EOF based on offset (try #5)
- Enable dfs submounts to handle remote referrals.
Documentation
- doc: fix kernel-parameters.txt mistaken deletions
- kernel-doc: restrict syntax for private: and public:
- hwmon: Update documentation on fan_max
- Input: multitouch - augment event semantics documentation
Network
- Add reference to CAPI 2.0 standard
- ar9170: add Cace Airpcap NX usb_id
- at76c50x-usb: Add device ID for OQO model 01+
- ath1e: add new device id for asus hardware
- be2net: add two new pci device ids to pci device table
- Doc: fixed descriptions on /proc/sys/net/core/* and /proc/sys/net/unix/*
- Documentation/isdn/INTERFACE.CAPI
- iwlwifi: DMA fixes
- iwlwifi: fix device id registration for 6000 series 2x2 devices
- netfilter: revised locking for x_tables
- p54: deactivate broken powersave function
- p54usb: add Telsey 802.11g USB2.0 Adapter
- phylib: Basic support for the M88E1121R Marvell chip
- rt2x00: Add rt73usb USB IDs
- rtl8187: add USB ID for Linksys WUSB54GC-EU v2 USB wifi dongle
- smsc95xx: add support for LAN9512 and LAN9514
Storage
Weitere Hintergründe und Informationen rund um Entwicklungen im Linux-Kernel und dessen Umfeld finden sich in vorangegangen Ausgaben des Kernel-Logs auf heise open. (thl/c't) (thl)
