27 Jan, 2009
1 commit
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Now that all EEPROM drivers live in the same place, let's harmonize
their symbol names.Also fix eeprom's dependencies, it definitely needs sysfs, and is no
longer experimental after many years in the kernel tree.Signed-off-by: Jean Delvare
Acked-by: Wolfram Sang
Cc: David Brownell
04 Jan, 2009
1 commit
-
…/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (77 commits)
x86: setup_per_cpu_areas() cleanup
cpumask: fix compile error when CONFIG_NR_CPUS is not defined
cpumask: use alloc_cpumask_var_node where appropriate
cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t
x86: use cpumask_var_t in acpi/boot.c
x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
sched: put back some stack hog changes that were undone in kernel/sched.c
x86: enable cpus display of kernel_max and offlined cpus
ia64: cpumask fix for is_affinity_mask_valid()
cpumask: convert RCU implementations, fix
xtensa: define __fls
mn10300: define __fls
m32r: define __fls
h8300: define __fls
frv: define __fls
cris: define __fls
cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
cpumask: zero extra bits in alloc_cpumask_var_node
cpumask: replace for_each_cpu_mask_nr with for_each_cpu in kernel/time/
cpumask: convert mm/
...
03 Jan, 2009
1 commit
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…/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
x86: export vector_used_by_percpu_irq
x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
sched: nominate preferred wakeup cpu, fix
x86: fix lguest used_vectors breakage, -v2
x86: fix warning in arch/x86/kernel/io_apic.c
sched: fix warning in kernel/sched.c
sched: move test_sd_parent() to an SMP section of sched.h
sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
sched: activate active load balancing in new idle cpus
sched: bias task wakeups to preferred semi-idle packages
sched: nominate preferred wakeup cpu
sched: favour lower logical cpu number for sched_mc balance
sched: framework for sched_mc/smt_power_savings=N
sched: convert BALANCE_FOR_xx_POWER to inline functions
x86: use possible_cpus=NUM to extend the possible cpus allowed
x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
x86: update io_apic.c to the new cpumask code
x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
x86: xen: use smp_call_function_many()
x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
...Fixed up trivial conflict in kernel/time/tick-sched.c manually
01 Jan, 2009
2 commits
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Impact: CPU iterator bugfixes
Percpu areas are only allocated for possible cpus. In general, you
shouldn't access random cpu's percpu areas.Signed-off-by: Rusty Russell
Signed-off-by: Mike Travis
Acked-by: Ingo Molnar
Acked-by: Hirokazu Takata -
Signed-off-by: Al Viro
30 Dec, 2008
1 commit
13 Dec, 2008
2 commits
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Conflicts:
arch/x86/kernel/io_apic.c
kernel/sched.c
kernel/sched_stats.h -
Impact: cleanup
Each SMP arch defines these themselves. Move them to a central
location.Twists:
1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
CONFIG_INIT_ALL_POSSIBLE for this rather than break them.2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
Those archs simply have phys_cpu_present_map replaced everywhere.3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
so I just manipulate them both in sync.4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
declarations.Signed-off-by: Rusty Russell
Reviewed-by: Grant Grundler
Tested-by: Tony Luck
Acked-by: Ingo Molnar
Cc: Mike Travis
Cc: ink@jurassic.park.msu.ru
Cc: rmk@arm.linux.org.uk
Cc: starvik@axis.com
Cc: tony.luck@intel.com
Cc: takata@linux-m32r.org
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: paulus@samba.org
Cc: schwidefsky@de.ibm.com
Cc: lethal@linux-sh.org
Cc: wli@holomorphy.com
Cc: davem@davemloft.net
Cc: jdike@addtoit.com
Cc: mingo@redhat.com
08 Dec, 2008
1 commit
03 Dec, 2008
1 commit
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Conflicts:
kernel/trace/ring_buffer.c
01 Dec, 2008
1 commit
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usual "introduce .text.head, put it in front of TEXT_TEXT in vmlinux.lds.S,
make the stuff up to jump to start_kernel live in it", same as on other
targets.Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds
11 Nov, 2008
1 commit
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Impact: cleanup, change .config option name
We had this ugly config name for a long time for hysteric raisons.
Rename it to a saner name.We still cannot get rid of it completely, until /proc//stack
usage replaces WCHAN usage for good.We'll be able to do that in the v2.6.29/v2.6.30 timeframe.
Signed-off-by: Ingo Molnar
24 Oct, 2008
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits)
OProfile: Fix buffer synchronization for IBS
oprofile: hotplug cpu fix
oprofile: fixing whitespaces in arch/x86/oprofile/*
oprofile: fixing whitespaces in arch/x86/oprofile/*
oprofile: fixing whitespaces in drivers/oprofile/*
x86/oprofile: add the logic for enabling additional IBS bits
x86/oprofile: reordering functions in nmi_int.c
x86/oprofile: removing unused function parameter in add_ibs_begin()
oprofile: more whitespace fixes
oprofile: whitespace fixes
OProfile: Rename IBS sysfs dir into "ibs_op"
OProfile: Rework string handling in setup_ibs_files()
OProfile: Rework oprofile_add_ibs_sample() function
oprofile: discover counters for op ppro too
oprofile: Implement Intel architectural perfmon support
oprofile: Don't report Nehalem as core_2
oprofile: drop const in num counters field
Revert "Oprofile Multiplexing Patch"
x86, oprofile: BUG: using smp_processor_id() in preemptible code
x86/oprofile: fix on_each_cpu build error
...Manually fixed trivial conflicts in
drivers/oprofile/{cpu_buffer.c,event_buffer.h}
21 Oct, 2008
1 commit
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…/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
m32r: fix build due to notify_cpu_starting() change
powerpc: fix linux-next build failure
20 Oct, 2008
1 commit
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This patch implements a new freezer subsystem in the control groups
framework. It provides a way to stop and resume execution of all tasks in
a cgroup by writing in the cgroup filesystem.The freezer subsystem in the container filesystem defines a file named
freezer.state. Writing "FROZEN" to the state file will freeze all tasks
in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup. Reading will return the current state.* Examples of usage :
# mkdir /containers/freezer
# mount -t cgroup -ofreezer freezer /containers
# mkdir /containers/0
# echo $some_pid > /containers/0/tasksto get status of the freezer subsystem :
# cat /containers/0/freezer.state
RUNNINGto freeze all tasks in the container :
# echo FROZEN > /containers/0/freezer.state
# cat /containers/0/freezer.state
FREEZING
# cat /containers/0/freezer.state
FROZENto unfreeze all tasks in the container :
# echo RUNNING > /containers/0/freezer.state
# cat /containers/0/freezer.state
RUNNINGThis is the basic mechanism which should do the right thing for user space
task in a simple scenario.It's important to note that freezing can be incomplete. In that case we
return EBUSY. This means that some tasks in the cgroup are busy doing
something that prevents us from completely freezing the cgroup at this
time. After EBUSY, the cgroup will remain partially frozen -- reflected
by freezer.state reporting "FREEZING" when read. The state will remain
"FREEZING" until one of these things happens:1) Userspace cancels the freezing operation by writing "RUNNING" to
the freezer.state file
2) Userspace retries the freezing operation by writing "FROZEN" to
the freezer.state file (writing "FREEZING" is not legal
and returns EIO)
3) The tasks that blocked the cgroup from entering the "FROZEN"
state disappear from the cgroup's set of tasks.[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: export thaw_process]
Signed-off-by: Cedric Le Goater
Signed-off-by: Matt Helsley
Acked-by: Serge E. Hallyn
Tested-by: Matt Helsley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Oct, 2008
3 commits
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* 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
do_generic_file_read: s/EINTR/EIO/ if lock_page_killable() fails
softirq, warning fix: correct a format to avoid a warning
softirqs, debug: preemption check
x86, pci-hotplug, calgary / rio: fix EBDA ioremap()
IO resources, x86: ioremap sanity check to catch mapping requests exceeding, fix
IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR sizes
softlockup: Documentation/sysctl/kernel.txt: fix softlockup_thresh description
dmi scan: warn about too early calls to dmi_check_system()
generic: redefine resource_size_t as phys_addr_t
generic: make PFN_PHYS explicitly return phys_addr_t
generic: add phys_addr_t for holding physical addresses
softirq: allocate less vectors
IO resources: fix/remove printk
printk: robustify printk, update comment
printk: robustify printk, fix #2
printk: robustify printk, fix
printk: robustify printkFixed up conflicts in:
arch/powerpc/include/asm/types.h
arch/powerpc/platforms/Kconfig.cputype
manually. -
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
fix:
arch/m32r/kernel/smpboot.c:501: err
or: implicit declaration of function 'notify_cpu_starting'
make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1
make[2]: *** Waiting for unfinished jobs....Signed-off-by: Ingo Molnar
16 Oct, 2008
1 commit
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Signed-off-by: Robert Richter
15 Oct, 2008
1 commit
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…' and 'core/misc' into core-v28-for-linus
14 Oct, 2008
1 commit
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Conflicts:
include/asm-x86/statfs.h
08 Oct, 2008
1 commit
-
…gent' into sched/core
27 Sep, 2008
5 commits
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This patch contains the following cleanups:
- make the following needlessly global code static:
- entry.S: resume_userspace
- process.c: pm_idle
- process.c: default_idle()
- smp.c: send_IPI_allbutself()
- time.c: timer_interrupt()
- time.c: struct irq0
- traps.c: set_eit_vector_entries()
- traps.c: kstack_depth_to_print
- traps.c: show_trace()
- traps.c: die_lock
- remove the following unused code:
- head.S: startup_32
- process.c: hlt_counter
- process.c: disable_hlt()
- process.c: enable_hlt()
- process.c: dump_task_regs()
- remove the following variables and their usages since they were
always 0:
- irq.c: irq_err_count
- irq.c: irq_mis_countSigned-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Hirokazu Takata -
ERROR: "__ndelay" [drivers/spi/spi_bitbang.ko] undefined!
Reported-by: Adrian Bunk
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Hirokazu Takata -
ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined!
Reported-by: Adrian Bunk
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Hirokazu Takata -
As far as I know no M32R hardware actually has ISA slots.
And ISA drivers don't compile on M32R.
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Hirokazu Takata -
Remove the unused NOHIGHMEM option.
Reviewed-by: Robert P. J. Day
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Hirokazu Takata
14 Sep, 2008
1 commit
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PFN_PHYS, as its name suggests, turns a pfn into a physical address.
However, it is a macro which just operates on its argument without
modifying its type. pfns are typed unsigned long, but an unsigned
long may not be long enough to hold a physical address (32-bit systems
with more than 32 bits of physcial address).Make sure we cast to phys_addr_t to return a complete result.
Signed-off-by: Jeremy Fitzhardinge
Signed-off-by: Ingo Molnar
09 Sep, 2008
1 commit
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Right now, there is no notifier that is called on a new cpu, before the new
cpu begins processing interrupts/softirqs.
Various kernel function would need that notification, e.g. kvm works around
by calling smp_call_function_single(), rcu polls cpu_online_map.The patch adds a CPU_STARTING notification. It also adds a helper function
that sends the message to all cpu_chain handlers.Tested on x86-64.
All other archs are untested. Especially on sparc, I'm not sure if I got
it right.Signed-off-by: Manfred Spraul
Signed-off-by: Ingo Molnar
07 Sep, 2008
1 commit
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We don't need this any more; arguably we never really did.
Signed-off-by: David Woodhouse
27 Jul, 2008
1 commit
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Remove arch-specific show_mem() in favor of the generic version.
This also removes the following redundant information display:
- free swap pages, printed by show_swap_cache_info()
- pages in swapcache, printed by show_swap_cache_info()where show_mem() calls show_free_areas(), which calls
show_swap_cache_info().Signed-off-by: Johannes Weiner
Cc: Hirokazu Takata
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jul, 2008
1 commit
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Inflate requires some dynamic memory allocation very early in the boot
process and this is provided with a set of four functions:
malloc/free/gzip_mark/gzip_release.The old inflate code used a mark/release strategy rather than implement
free. This new version instead keeps a count on the number of outstanding
allocations and when it hits zero, it resets the malloc arena.This allows removing all the mark and release implementations and unifying
all the malloc/free implementations.The architecture-dependent code must define two addresses:
- free_mem_ptr, the address of the beginning of the area in which
allocations should be made
- free_mem_end_ptr, the address of the end of the area in which
allocations should be made. If set to 0, then no check is made on
the number of allocations, it just grows as much as neededThe architecture-dependent code can also provide an arch_decomp_wdog()
function call. This function will be called several times during the
decompression process, and allow to notify the watchdog that the system is
still running. If an architecture provides such a call, then it must
define ARCH_HAS_DECOMP_WDOG so that the generic inflate code calls
arch_decomp_wdog().Work initially done by Matt Mackall, updated to a recent version of the
kernel and improved by me.[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Thomas Petazzoni
Cc: Matt Mackall
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Mikael Starvik
Cc: Jesper Nilsson
Cc: Haavard Skinnemoen
Cc: David Howells
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: Andi Kleen
Cc: "H. Peter Anvin"
Acked-by: Paul Mundt
Acked-by: Yoshinori Sato
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jul, 2008
3 commits
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Almost all users of this field need a PFN instead of a physical address,
so replace node_boot_start with node_min_pfn.[Lee.Schermerhorn@hp.com: fix spurious BUG_ON() in mark_bootmem()]
Signed-off-by: Johannes Weiner
Cc:
Signed-off-by: Lee Schermerhorn
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
free_area_init_node() gets passed in the node id as well as the node
descriptor. This is redundant as the function can trivially get the node
descriptor itself by means of NODE_DATA() and the node's id.I checked all the users and NODE_DATA() seems to be usable everywhere
from where this function is called.Signed-off-by: Johannes Weiner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There are a lot of places that define either a single bootmem descriptor or an
array of them. Use only one central array with MAX_NUMNODES items instead.Signed-off-by: Johannes Weiner
Acked-by: Ralf Baechle
Cc: Ingo Molnar
Cc: Richard Henderson
Cc: Russell King
Cc: Tony Luck
Cc: Hirokazu Takata
Cc: Geert Uytterhoeven
Cc: Kyle McMartin
Cc: Paul Mackerras
Cc: Paul Mundt
Cc: David S. Miller
Cc: Yinghai Lu
Cc: Christoph Lameter
Cc: Mel Gorman
Cc: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jun, 2008
2 commits
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It's never used and the comments refer to nonatomic and retry
interchangably. So get rid of it.Acked-by: Jeremy Fitzhardinge
Signed-off-by: Jens Axboe -
This converts m32r to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single(). Not tested,
not even compiled.Cc: Hirokazu Takata
Signed-off-by: Jens Axboe
17 May, 2008
1 commit
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Signed-off-by: Al Viro
09 May, 2008
2 commits
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m32r can use the generic sys_pipe implementation.
The current sys_pipe implementation on m32r only differes from the
generic one by passing a lot of additional unused registers to sys_pipe.Reviewed and tested by Hirokazu Takata.
Signed-off-by: Christoph Hellwig
Acked-by: Hirokazu Takata
Signed-off-by: Linus Torvalds -
Remember to close the files if copy_to_user() failed.
Spotted by dm.n9107@gmail.com.
Signed-off-by: Ulrich Drepper
Cc: DM
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
