23 May, 2011
3 commits
-
Since the NV24 framebuffer has a CbCr plane that is twice as wide
as the Y plane, it needs to be handled as a special case.Signed-off-by: Damian Hobson-Garcia
Signed-off-by: Paul Mundt -
Based on the patch by Takanari Hayama
Adds support framework necessary to use Media RAM (MERAM)
caching functionality with the LCDC. The MERAM is accessed
through up to 4 Interconnect Buffers (ICBs).ICB numbers and MERAM address ranges to use are specified in
by filling in the .meram_cfg member of the LCDC platform dataSigned-off-by: Damian Hobson-Garcia
Signed-off-by: Paul Mundt -
Fixes build errors on s390 and probably other archs as well:
In file included from net/ipv4/ip_forward.c:32:0:
include/net/udp.h: In function 'udp_csum_outgoing':
include/net/udp.h:141:2: error: implicit declaration of function 'prefetch'Signed-off-by: Heiko Carstens
Signed-off-by: Linus Torvalds
22 May, 2011
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: sbp2: parallelize login, reconnect, logout
firewire: sbp2: octlet AT payloads can be stack-allocated
firewire: sbp2: omit Scsi_Host lock from queuecommand
firewire: core: use non-reentrant workqueue with rescuer
firewire: optimize iso queueing by setting wake only after the last packet
firewire: octlet AT payloads can be stack-allocated
firewire: ohci: optimize find_branch_descriptor()
firewire: ohci: avoid separate DMA mapping for small AT payloads
firewire: ohci: do not start DMA contexts before link is enabled
21 May, 2011
8 commits
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* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: Power off empty ports
libata-pmp: add support for Thermaltake BlackX Duet esata drive dock
ATA: Don't powerdown Compaq Triflex IDE device on suspend
libata: Use Maximum Write Same Length to report discard size limit
drivers/ata/acard-ahci.c: fix enum warning
pata_at91: SMC settings calculation bugfixes, support for t6z and IORDY
libata-sff: prevent irq descriptions for dummy ports
pata_cm64x: fix boot crash on parisc -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits)
macvlan: fix panic if lowerdev in a bond
tg3: Add braces around 5906 workaround.
tg3: Fix NETIF_F_LOOPBACK error
macvlan: remove one synchronize_rcu() call
networking: NET_CLS_ROUTE4 depends on INET
irda: Fix error propagation in ircomm_lmp_connect_response()
irda: Kill set but unused variable 'bytes' in irlan_check_command_param()
irda: Kill set but unused variable 'clen' in ircomm_connect_indication()
rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport()
be2net: Kill set but unused variable 'req' in lancer_fw_download()
irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication()
atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined.
rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer().
rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler()
rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection()
rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window()
pkt_sched: Kill set but unused variable 'protocol' in tc_classify()
isdn: capi: Use pr_debug() instead of ifdefs.
tg3: Update version to 3.119
tg3: Apply rx_discards fix to 5719/5720
...Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c
as per Davem. -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] define "_sdata" symbol
pstore: Fix Kconfig dependencies for apei->pstore
pstore: fix potential logic issue in pstore read interface
pstore: fix pstore filesystem mount/remount issue
pstore: fix one type of return value in pstore
[IA64] fix build warning in arch/ia64/oprofile/backtrace.c -
* 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc: (41 commits)
signal: trivial, fix the "timespec declared inside parameter list" warning
job control: reorganize wait_task_stopped()
ptrace: fix signal->wait_chldexit usage in task_clear_group_stop_trapping()
signal: sys_sigprocmask() needs retarget_shared_pending()
signal: cleanup sys_sigprocmask()
signal: rename signandsets() to sigandnsets()
signal: do_sigtimedwait() needs retarget_shared_pending()
signal: introduce do_sigtimedwait() to factor out compat/native code
signal: sys_rt_sigtimedwait: simplify the timeout logic
signal: cleanup sys_rt_sigprocmask()
x86: signal: sys_rt_sigreturn() should use set_current_blocked()
x86: signal: handle_signal() should use set_current_blocked()
signal: sigprocmask() should do retarget_shared_pending()
signal: sigprocmask: narrow the scope of ->siglock
signal: retarget_shared_pending: optimize while_each_thread() loop
signal: retarget_shared_pending: consider shared/unblocked signals only
signal: introduce retarget_shared_pending()
ptrace: ptrace_check_attach() should not do s/STOPPED/TRACED/
signal: Turn SIGNAL_STOP_DEQUEUED into GROUP_STOP_DEQUEUED
signal: do_signal_stop: Remove the unneeded task_clear_group_stop_pending()
... -
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (152 commits)
powerpc: Fix hard CPU IDs detection
powerpc/pmac: Update via-pmu to new syscore_ops
powerpc/kvm: Fix the build for 32-bit Book 3S (classic) processors
powerpc/kvm: Fix kvmppc_core_pending_dec
powerpc: Remove last piece of GEMINI
powerpc: Fix for Pegasos keyboard and mouse
powerpc: Make early memory scan more resilient to out of order nodes
powerpc/pseries/iommu: Cleanup ddw naming
powerpc/pseries/iommu: Find windows after kexec during boot
powerpc/pseries/iommu: Remove ddw property when destroying window
powerpc/pseries/iommu: Add additional checks when changing iommu mask
powerpc/pseries/iommu: Use correct return type in dupe_ddw_if_already_created
powerpc: Remove unused/obsolete CONFIG_XICS
misc: Add CARMA DATA-FPGA Programmer support
misc: Add CARMA DATA-FPGA Access Driver
powerpc: Make IRQ_NOREQUEST last to clear, first to set
powerpc: Integrated Flash controller device tree bindings
powerpc/85xx: Create dts of each core in CAMP mode for P1020RDB
powerpc/85xx: Fix PCIe IDSEL for Px020RDB
powerpc/85xx: P2020 DTS: re-organize dts files
... -
Commit e66eed651fd1 ("list: remove prefetching from regular list
iterators") removed the include of prefetch.h from list.h and this was a
path to including asm/processor.h. We need to include it excplicitly
now.Fixes this build error on sparc32 (at least):
In file included from include/linux/seqlock.h:29,
from include/linux/time.h:8,
from include/linux/timex.h:56,
from include/linux/sched.h:57,
from arch/sparc/kernel/asm-offsets.c:13:
include/linux/spinlock.h: In function 'spin_unlock_wait':
include/linux/spinlock.h:360: error: implicit declaration of function 'cpu_relaxSigned-off-by: Stephen Rothwell
Signed-off-by: Linus Torvalds -
Commit e66eed651fd1 ("list: remove prefetching from regular list
iterators") removed the include of prefetch.h from list.h, which
uncovered several cases that had apparently relied on that rather
obscure header file dependency.So this fixes things up a bit, using
grep -L linux/prefetch.h $(git grep -l '[^a-z_]prefetchw*(' -- '*.[ch]')
grep -L 'prefetchw*(' $(git grep -l 'linux/prefetch.h' -- '*.[ch]')to guide us in finding files that either need
inclusion, or have it despite not needing it.There are more of them around (mostly network drivers), but this gets
many core ones.Reported-by: Stephen Rothwell
Signed-off-by: Linus Torvalds
20 May, 2011
24 commits
-
Manual merge of arch/powerpc/kernel/smp.c and add missing scheduler_ipi()
call to arch/powerpc/platforms/cell/interrupt.cSigned-off-by: Benjamin Herrenschmidt
-
When one macvlan device is dismantled, we can avoid one
synchronize_rcu() call done after deletion from hash list, since caller
will perform a synchronize_net() call after its ndo_stop() call.Add a new netdev->dismantle field to signal this dismantle intent.
Reduces RTNL hold time.
Signed-off-by: Eric Dumazet
CC: Patrick McHardy
CC: Ben Greear
Signed-off-by: David S. Miller -
…/gregkh/driver-core-2.6
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (44 commits)
debugfs: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
sysfs: remove "last sysfs file:" line from the oops messages
drivers/base/memory.c: fix warning due to "memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION"
memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION
SYSFS: Fix erroneous comments for sysfs_update_group().
driver core: remove the driver-model structures from the documentation
driver core: Add the device driver-model structures to kerneldoc
Translated Documentation/email-clients.txt
RAW driver: Remove call to kobject_put().
reboot: disable usermodehelper to prevent fs access
efivars: prevent oops on unload when efi is not enabled
Allow setting of number of raw devices as a module parameter
Introduce CONFIG_GOOGLE_FIRMWARE
driver: Google Memory Console
driver: Google EFI SMI
x86: Better comments for get_bios_ebda()
x86: get_bios_ebda_length()
misc: fix ti-st build issues
params.c: Use new strtobool function to process boolean inputs
debugfs: move to new strtobool
...Fix up trivial conflicts in fs/debugfs/file.c due to the same patch
being applied twice, and an unrelated cleanup nearby. -
This fixes these build errors on powerpc:
In file included from arch/powerpc/mm/fault.c:18:
include/linux/signal.h:239: error: 'struct task_struct' declared inside parameter list
include/linux/signal.h:239: error: its scope is only this definition or declaration, which is probably not what you want
include/linux/signal.h:240: error: 'struct task_struct' declared inside parameter list
..Exposed by commit e66eed651fd1 ("list: remove prefetching from regular
list iterators"), which removed the include of from
.Without that, linux/signal.h no longer accidentally got the declaration
of 'struct task_struct'.Fix by properly declaring the struct, rather than introducing any new
header file dependency.Signed-off-by: Stephen Rothwell
Signed-off-by: Linus Torvalds -
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (78 commits)
Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"
net,rcu: convert call_rcu(prl_entry_destroy_rcu) to kfree
batman,rcu: convert call_rcu(softif_neigh_free_rcu) to kfree_rcu
batman,rcu: convert call_rcu(neigh_node_free_rcu) to kfree()
batman,rcu: convert call_rcu(gw_node_free_rcu) to kfree_rcu
net,rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu()
net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu()
net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu()
net,rcu: convert call_rcu(wq_free_rcu) to kfree_rcu()
net,rcu: convert call_rcu(phonet_device_rcu_free) to kfree_rcu()
perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu()
perf,rcu: convert call_rcu(free_ctx) to kfree_rcu()
net,rcu: convert call_rcu(__nf_ct_ext_free_rcu) to kfree_rcu()
net,rcu: convert call_rcu(net_generic_release) to kfree_rcu()
net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6) to kfree_rcu()
net,rcu: convert call_rcu(netlbl_unlhsh_free_addr4) to kfree_rcu()
security,rcu: convert call_rcu(sel_netif_free) to kfree_rcu()
net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu()
net,rcu: convert call_rcu(xps_map_release) to kfree_rcu()
net,rcu: convert call_rcu(rps_map_release) to kfree_rcu()
... -
Give users the option of completely powering off unoccupied
SATA ports using the existing min_power link_power_management_policy
option. When the use selects this option on an empty port, we
will power the port off by setting DET to off. For occupied ports,
behavior is unchanged.Signed-off-by: Kristen Carlson Accardi
Signed-off-by: Jeff Garzik -
…l/git/tip/linux-2.6-tip
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
hrtimer: Make lookup table const
RTC: Disable CONFIG_RTC_CLASS from being built as a module
timers: Fix alarmtimer build issues when CONFIG_RTC_CLASS=n
timers: Remove delayed irqwork from alarmtimers implementation
timers: Improve alarmtimer comments and minor fixes
timers: Posix interface for alarm-timers
timers: Introduce in-kernel alarm-timer interface
timers: Add rb_init_node() to allow for stack allocated rb nodes
time: Add timekeeping_inject_sleeptime -
…x/kernel/git/tip/linux-2.6-tip
* 'timers-clockevents-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: hpet: Cleanup the clockevents init and register code
x86: Convert PIT to clockevents_config_and_register()
clockevents: Provide interface to reconfigure an active clock event device
clockevents: Provide combined configure and register function
clockevents: Restructure clock_event_device members
clocksource: Get rid of the hardcoded 5 seconds sleep time limit
clocksource: Restructure clocksource struct members -
…x/kernel/git/tip/linux-2.6-tip
* 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
clocksource: convert mips to generic i8253 clocksource
clocksource: convert x86 to generic i8253 clocksource
clocksource: convert footbridge to generic i8253 clocksource
clocksource: add common i8253 PIT clocksource
blackfin: convert to clocksource_register_hz
mips: convert to clocksource_register_hz/khz
sparc: convert to clocksource_register_hz/khz
alpha: convert to clocksource_register_hz
microblaze: convert to clocksource_register_hz/khz
ia64: convert to clocksource_register_hz/khz
x86: Convert remaining x86 clocksources to clocksource_register_hz/khz
Make clocksource name const -
…kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (60 commits)
sched: Fix and optimise calculation of the weight-inverse
sched: Avoid going ahead if ->cpus_allowed is not changed
sched, rt: Update rq clock when unthrottling of an otherwise idle CPU
sched: Remove unused parameters from sched_fork() and wake_up_new_task()
sched: Shorten the construction of the span cpu mask of sched domain
sched: Wrap the 'cfs_rq->nr_spread_over' field with CONFIG_SCHED_DEBUG
sched: Remove unused 'this_best_prio arg' from balance_tasks()
sched: Remove noop in alloc_rt_sched_group()
sched: Get rid of lock_depth
sched: Remove obsolete comment from scheduler_tick()
sched: Fix sched_domain iterations vs. RCU
sched: Next buddy hint on sleep and preempt path
sched: Make set_*_buddy() work on non-task entities
sched: Remove need_migrate_task()
sched: Move the second half of ttwu() to the remote cpu
sched: Restructure ttwu() some more
sched: Rename ttwu_post_activation() to ttwu_do_wakeup()
sched: Remove rq argument from ttwu_stat()
sched: Remove rq->lock from the first half of ttwu()
sched: Drop rq->lock from sched_exec()
...* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Fix rt_rq runtime leakage bug -
…git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (107 commits)
perf stat: Add more cache-miss percentage printouts
perf stat: Add -d -d and -d -d -d options to show more CPU events
ftrace/kbuild: Add recordmcount files to force full build
ftrace: Add self-tests for multiple function trace users
ftrace: Modify ftrace_set_filter/notrace to take ops
ftrace: Allow dynamically allocated function tracers
ftrace: Implement separate user function filtering
ftrace: Free hash with call_rcu_sched()
ftrace: Have global_ops store the functions that are to be traced
ftrace: Add ops parameter to ftrace_startup/shutdown functions
ftrace: Add enabled_functions file
ftrace: Use counters to enable functions to trace
ftrace: Separate hash allocation and assignment
ftrace: Create a global_ops to hold the filter and notrace hashes
ftrace: Use hash instead for FTRACE_FL_FILTER
ftrace: Replace FTRACE_FL_NOTRACE flag with a hash of ignored functions
perf bench, x86: Add alternatives-asm.h wrapper
x86, 64-bit: Fix copy_[to/from]_user() checks for the userspace address limit
x86, mem: memset_64.S: Optimize memset by enhanced REP MOVSB/STOSB
x86, mem: memmove_64.S: Optimize memmove by enhanced REP MOVSB/STOSB
... -
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
irq: Export functions to allow modular irq drivers
genirq: Uninline and sanity check generic_handle_irq()
genirq: Remove pointless ifdefs
genirq: Make generic irq chip depend on CONFIG_GENERIC_IRQ_CHIP
genirq: Add chip suspend and resume callbacks
genirq: Implement a generic interrupt chip
genirq: Support per-IRQ thread disabling.
genirq: irq_desc: Document preflow_handler and affinity_hint
genirq: Update DocBook comments
genirq: Forgotten updates/deletions after removal of compat code -
…el/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
seqlock: Don't smp_rmb in seqlock reader spin loop
watchdog, hung_task_timeout: Add Kconfig configurable default
lockdep: Remove cmpxchg to update nr_chain_hlocks
lockdep: Print a nicer description for simple irq lock inversions
lockdep: Replace "Bad BFS generated tree" message with something less cryptic
lockdep: Print a nicer description for irq inversion bugs
lockdep: Print a nicer description for simple deadlocks
lockdep: Print a nicer description for normal deadlocks
lockdep: Print a nicer description for irq lock inversions -
…/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, gart: Rename pci-gart_64.c to amd_gart_64.c
x86/amd-iommu: Use threaded interupt handler
arch/x86/kernel/pci-iommu_table.c: Convert sprintf_symbol to %pS
x86/amd-iommu: Add support for invalidate_all command
x86/amd-iommu: Add extended feature detection
x86/amd-iommu: Add ATS enable/disable code
x86/amd-iommu: Add flag to indicate IOTLB support
x86/amd-iommu: Flush device IOTLB if ATS is enabled
x86/amd-iommu: Select PCI_IOV with AMD IOMMU driver
PCI: Move ATS declarations in seperate header file
dma-debug: print information about leaked entry
x86/amd-iommu: Flush all internal TLBs when IOMMUs are enabled
x86/amd-iommu: Rename iommu_flush_device
x86/amd-iommu: Improve handling of full command buffer
x86/amd-iommu: Rename iommu_flush* to domain_flush*
x86/amd-iommu: Remove command buffer resetting logic
x86/amd-iommu: Cleanup completion-wait handling
x86/amd-iommu: Cleanup inv_pages command handling
x86/amd-iommu: Move inv-dte command building to own function
x86/amd-iommu: Move compl-wait command building to own function -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (34 commits)
PM: Introduce generic prepare and complete callbacks for subsystems
PM: Allow drivers to allocate memory from .prepare() callbacks safely
PM: Remove CONFIG_PM_VERBOSE
Revert "PM / Hibernate: Reduce autotuned default image size"
PM / Hibernate: Add sysfs knob to control size of memory for drivers
PM / Wakeup: Remove useless synchronize_rcu() call
kmod: always provide usermodehelper_disable()
PM / ACPI: Remove acpi_sleep=s4_nonvs
PM / Wakeup: Fix build warning related to the "wakeup" sysfs file
PM: Print a warning if firmware is requested when tasks are frozen
PM / Runtime: Rework runtime PM handling during driver removal
Freezer: Use SMP barriers
PM / Suspend: Do not ignore error codes returned by suspend_enter()
PM: Fix build issue in clock_ops.c for CONFIG_PM_RUNTIME unset
PM: Revert "driver core: platform_bus: allow runtime override of dev_pm_ops"
OMAP1 / PM: Use generic clock manipulation routines for runtime PM
PM: Remove sysdev suspend, resume and shutdown operations
PM / PowerPC: Use struct syscore_ops instead of sysdevs for PM
PM / UNICORE32: Use struct syscore_ops instead of sysdevs for PM
PM / AVR32: Use struct syscore_ops instead of sysdevs for PM
... -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: Use pci_dev->revision
RDMA/iwcm: Get rid of enum iw_cm_event_status
IB/ipath: Use pci_dev->revision, again
IB/qib: Prevent driver hang with unprogrammed boards
RDMA/cxgb4: EEH errors can hang the driver
RDMA/cxgb4: Reset wait condition atomically
RDMA/cxgb4: Fix missing parentheses
RDMA/cxgb4: Initialization errors can cause crash
RDMA/cxgb4: Don't change QP state outside EP lock
RDMA/cma: Add an ID_REUSEADDR option
RDMA/cma: Fix handling of IPv6 addressing in cma_use_port -
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (48 commits)
MIPS: Move arch_get_unmapped_area and gang to new file.
MIPS: Cleanup arch_get_unmapped_area
MIPS: Octeon: Don't request interrupts for unused IPI mailbox bits.
Octeon: Fix interrupt irq settings for performance counters.
MIPS: Fix build warnings on defconfigs
MIPS: Lemote 2F, Malta: Fix build warning
MIPS: Set ELF AT_PLATFORM string for Loongson2 processors
MIPS: Set ELF AT_PLATFORM string for BMIPS processors
MIPS: Introduce set_elf_platform() helper function
MIPS: JZ4740: setup: Autodetect physical memory.
MIPS: BCM47xx: Fix MAC address parsing.
MIPS: BCM47xx: Extend the filling of SPROM from NVRAM
MIPS: BCM47xx: Register SSB fallback sprom callback
MIPS: BCM47xx: Extend bcm47xx_fill_sprom with prefix.
SSB: Change fallback sprom to callback mechanism.
MIPS: Alchemy: Clean up GPIO registers and accessors
MIPS: Alchemy: Cleanup DMA addresses
MIPS: Alchemy: Rewrite ethernet platform setup
MIPS: Alchemy: Rewrite UART setup and constants.
MIPS: Alchemy: Convert dbdma.c to syscore_ops
... -
…rnel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/backend.base.v3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/pci: Fix compiler error when CONFIG_XEN_PRIVILEGED_GUEST is not set.
xen/p2m: Add EXPORT_SYMBOL_GPL to the M2P override functions.
xen/p2m/m2p/gnttab: Support GNTMAP_host_map in the M2P override.
xen/irq: The Xen hypervisor cleans up the PIRQs if the other domain forgot.
xen/irq: Export 'xen_pirq_from_irq' function.
xen/irq: Add support to check if IRQ line is shared with other domains.
xen/irq: Check if the PCI device is owned by a domain different than DOMID_SELF.
xen/pci: Add xen_[find|register|unregister]_device_domain_owner functions.* 'stable/gntalloc.v7' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/gntdev,gntalloc: Remove unneeded VM flags -
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] remove redundant sprintf from request_module call.
[CPUFREQ] cpufreq_stats.c: Fixed brace coding style issue
[CPUFREQ] Fix memory leak in cpufreq_stat
[CPUFREQ] cpufreq.h: Fix some checkpatch.pl coding style issues.
[CPUFREQ] use dynamic debug instead of custom infrastructure
[CPUFREQ] CPU hotplug, re-create sysfs directory and symlinks
[CPUFREQ] Fix _OSC UUID in pcc-cpufreq -
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
params.c: Use new strtobool function to process boolean inputs
debugfs: move to new strtobool
Add a strtobool function matching semantics of existing in kernel equivalents
modpost: Update 64k section support for binutils 2.18.50
module: Use binary search in lookup_symbol()
module: Use the binary search for symbols resolution
lib: Add generic binary search function to the kernel.
module: Sort exported symbols
module: each_symbol_section instead of each_symbol
module: split unset_section_ro_nx function.
module: undo module RONX protection correctly.
module: zero mod->init_ro_size after init is freed.
minor ANSI prototype sparse fix
module: reorder kparam_array to remove alignment padding on 64 bit builds
module: remove 64 bit alignment padding from struct module with CONFIG_TRACE*
module: do not hide __modver_version_show declaration behind ifdef
module: deal with alignment issues in built-in module versions -
This is removes the use of software prefetching from the regular list
iterators. We don't want it. If you do want to prefetch in some
iterator of yours, go right ahead. Just don't expect the iterator to do
it, since normally the downsides are bigger than the upsides.It also replaces with , because the
use of LIST_POISON ends up needing it. is sadly not
self-contained, and including prefetch.h just happened to hide that.Suggested by David Miller (networking has a lot of regular lists that
are often empty or a single entry, and prefetching is not going to do
anything but add useless instructions).Acked-by: Ingo Molnar
Acked-by: David S. Miller
Cc: linux-arch@vger.kernel.org
Signed-off-by: Linus Torvalds -
They not only increase the code footprint, they actually make things
slower rather than faster. On internationally acclaimed benchmarks
("make -j16" on an already fully built kernel source tree) the hlist
prefetching slows down the build by up to 1%.(Almost all of it comes from hlist_for_each_entry_rcu() as used by
avc_has_perm_noaudit(), which is very hot due to all the pathname
lookups to see if there is anything to do).The cause seems to be two-fold:
- on at least some Intel cores, prefetch(NULL) ends up with some
microarchitectural stall due to the TLB miss that it incurs. The
hlist case triggers this very commonly, since the NULL pointer is the
last entry in the list.- the prefetch appears to cause more D$ activity, probably because it
prefetches hash list entries that are never actually used (because we
ended the search early due to a hit).Regardless, the numbers clearly say that the implicit prefetching is
simply a bad idea. If some _particular_ user of the hlist iterators
wants to prefetch the next list entry, they can do so themselves
explicitly, rather than depend on all list iterators doing so
implicitly.Acked-by: Ingo Molnar
Acked-by: David S. Miller
Cc: linux-arch@vger.kernel.org
Signed-off-by: Linus Torvalds -
ipv6 has per device ICMP SNMP counters, taking too much space because
they use percpu storage.needed size per device is :
(512+4)*sizeof(long)*number_of_possible_cpus*2On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of
memory per ipv6 enabled network device, taken in vmalloc pool.Since ICMP messages are rare, just use shared counters (atomic_long_t)
Per network space ICMP counters are still using percpu memory, we might
also convert them to shared counters in a future patch.Signed-off-by: Eric Dumazet
CC: Denys Fedoryshchenko
Signed-off-by: David S. Miller -
…stedt/linux-2.6-trace into perf/core
19 May, 2011
4 commits
-
Some ARM SoCs have clock event devices which have their frequency
modified due to frequency scaling. Provide an interface which allows
to reconfigure an active device. After reconfiguration reprogram the
current pending event.Signed-off-by: Thomas Gleixner
Cc: LAK
Cc: John Stultz
Acked-by: Linus Walleij
Reviewed-by: Ingo Molnar
Link: http://lkml.kernel.org/r/%3C20110518210136.437459958%40linutronix.de%3E -
All clockevent devices have the same open coded initialization
functions. Provide an interface which does all necessary
initialization in the core code.Signed-off-by: Thomas Gleixner
Cc: John Stultz
Reviewed-by: Ingo Molnar
Link: http://lkml.kernel.org/r/%3C20110518210136.331975870%40linutronix.de%3E -
Group the hot path members of struct clock_event_device together so we
have a better cache line footprint. Make it cacheline aligned.Signed-off-by: Thomas Gleixner
Cc: John Stultz
Reviewed-by: Ingo Molnar
Link: http://lkml.kernel.org/r/%3C20110518210136.223607682%40linutronix.de%3E -
Group the hot path members of struct clocksource together so we have a
better cache line footprint. Make it cacheline aligned.Signed-off-by: Thomas Gleixner
Cc: John Stultz
Cc: Eric Dumazet
Reviewed-by: Ingo Molnar
Link: http://lkml.kernel.org/r/%3C20110518210136.003081882%40linutronix.de%3E
