09 Nov, 2005
26 commits
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The folllowing modules require screen_info but don't depend
on CONFIG_VT:
- vga16fb.ko
- intelfb.koSigned-off-by: Adrian Bunk
Acked-by: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Delete leftovers of the FB_E1356 and anything that did depend on it.
Signed-off-by: Ralf Baechle
Signed-off-by: Antonino Daplas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make some changes to the NEED_RESCHED and POLLING_NRFLAG to reduce
confusion, and make their semantics rigid. Improves efficiency of
resched_task and some cpu_idle routines.* In resched_task:
- TIF_NEED_RESCHED is only cleared with the task's runqueue lock held,
and as we hold it during resched_task, then there is no need for an
atomic test and set there. The only other time this should be set is
when the task's quantum expires, in the timer interrupt - this is
protected against because the rq lock is irq-safe.- If TIF_NEED_RESCHED is set, then we don't need to do anything. It
won't get unset until the task get's schedule()d off.- If we are running on the same CPU as the task we resched, then set
TIF_NEED_RESCHED and no further action is required.- If we are running on another CPU, and TIF_POLLING_NRFLAG is *not* set
after TIF_NEED_RESCHED has been set, then we need to send an IPI.Using these rules, we are able to remove the test and set operation in
resched_task, and make clear the previously vague semantics of
POLLING_NRFLAG.* In idle routines:
- Enter cpu_idle with preempt disabled. When the need_resched() condition
becomes true, explicitly call schedule(). This makes things a bit clearer
(IMO), but haven't updated all architectures yet.- Many do a test and clear of TIF_NEED_RESCHED for some reason. According
to the resched_task rules, this isn't needed (and actually breaks the
assumption that TIF_NEED_RESCHED is only cleared with the runqueue lock
held). So remove that. Generally one less locked memory op when switching
to the idle thread.- Many idle routines clear TIF_POLLING_NRFLAG, and only set it in the inner
most polling idle loops. The above resched_task semantics allow it to be
set until before the last time need_resched() is checked before going into
a halt requiring interrupt wakeup.Many idle routines simply never enter such a halt, and so POLLING_NRFLAG
can be always left set, completely eliminating resched IPIs when rescheduling
the idle task.POLLING_NRFLAG width can be increased, to reduce the chance of resched IPIs.
Signed-off-by: Nick Piggin
Cc: Ingo Molnar
Cc: Con Kolivas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Run idle threads with preempt disabled.
Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()).
How did it ever work before?Might fix the CPU hotplugging hang which Nigel Cunningham noted.
We think the bug hits if the idle thread is preempted after checking
need_resched() and before going to sleep, then the CPU offlined.After calling stop_machine_run, the CPU eventually returns from preemption and
into the idle thread and goes to sleep. The CPU will continue executing
previous idle and have no chance to call play_dead.By disabling preemption until we are ready to explicitly schedule, this bug is
fixed and the idle threads generally become more robust.From: alexs
PPC build fix
From: Yoichi Yuasa
MIPS build fix
Signed-off-by: Nick Piggin
Signed-off-by: Yoichi Yuasa
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Christoph Hellwig
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some architectures define and use this type in their compat_ioctl code, but
all of them can easily use the identical ioctl_trans_handler_t type that is
defined in common code.Signed-off-by: Christoph Hellwig
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch removes almost all inclusions of linux/version.h. The 3
#defines are unused in most of the touched files.A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.There are also lots of #ifdef for long obsolete kernels, this was not
touched. In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`
search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).hSigned-off-by: Olaf Hering
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
"extern inline" -> "static inline"
Signed-off-by: Adrian Bunk
Cc: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fixes e500 build and cleans up traps.c by moving perf_irq extern to
pmc.h.Signed-off-by: Matt Porter
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
MPC834x uses the gianfar network driver which now uses the new phylib. We
need to update the platform code to create a gianfar platform MDIO bus and
pass the right intializations to the gianfar driver to make things work
again.Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A non-broken udev would autoload also the drivers for devices on the
pseries vio bus, like ibmveth, ibmvscsic and hvsc. This is similar to pci,
usb and ieee1394:/lib/modules/`uname -r`/modules.alias
alias vio:TvscsiSIBM,v-scsi* ibmvscsic
alias vio:TnetworkSIBM,l-lan* ibmveth
alias vio:Tserial-serverShvterm2* hvcs/events/debug.00004.pci.add.1394:MODALIAS='pci:v00001014d00000188sv00000000sd00000000bc06sc04i0f'
/events/debug.00005.pci.add.1509:MODALIAS='pci:v00008086d00001229sv00001014sd000001FFbc02sc00i00'
/events/debug.00026.vio.add.1519:MODALIAS='vio:TserialShvterm1'
/events/debug.00027.vio.add.1446:MODALIAS='vio:TvscsiSIBM,v-scsi'
/events/debug.00028.vio.add.1451:MODALIAS='vio:TnetworkSIBM,l-lan'modprobe -v vio:TnetworkSIBM,l-lan
insmod /lib/modules/2.6.14-20051030_vio-ppc64/kernel/drivers/net/ibmveth.koSigned-off-by: Olaf Hering
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add missing include file to fix STx GP3 build.
Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fixes mismerged Makefile that prevented the ppc85xx rapidio support from being
built.Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
You could open the /proc/sys/net/ipv4/conf// file, then
wait for interface to go away, try to grab as much memory as possible in
hope to hit the (kfreed) ctl_table. Then fill it with pointers to your
function. Then do read from file you've opened and if you are lucky,
you'll get it called as ->proc_handler() in kernel mode.So this is at least an Oops and possibly more. It does depend on an
interface going away though, so less of a security risk than it would
otherwise be.Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Linus Torvalds -
Patch from Nicolas Pitre
Make it completely deterministic and leave nothing to chance
(even if it had at worst 0.001% probability of failing).Signed-off-by: Nicolas Pitre
Signed-off-by: Russell King -
Patch from Nicolas Pitre
Noticed by Woody Suwalski .
Signed-off-by: Nicolas Pitre
Signed-off-by: Russell King -
Patch from Ben Dooks
Force a watchdog reset if the system fails to
decompress properly.Signed-off-by: Ben Dooks
Signed-off-by: Russell King -
Patch from Dirk Opfer
This patch updates the tosa machine to use the new SharpSL PCMCIA layer introduced with Patch #3093/1
Depends on #3093/1
Signed-off-by: Dirk Opfer
Signed-off-by: Richard Purdie
Signed-off-by: Russell King -
Patch from Richard Purdie
The Sharp SL-Cxx00 models have a combined power control for the SD
and CF slot 0. This patch adds hooks to the scoop driver to allow
machines to provide a custom control function for this and such a
function is added for spitz/akita/borzoi.It also moves the gpio init code into the machine files as this
is machine dependent and differs between some models. A couple of
warnings when compiling for collie are also fixed.Signed-off-by: Richard Purdie
Signed-off-by: Russell King -
Patch from Ben Dooks
Fix the map_desc entries to use the new .pfn
initialiser for the Simtec BAST machine support.Signed-off-by: Ben Dooks
Signed-off-by: Russell King -
Patch from Ben Dooks
Fix the initialisation of the map_desc fields
in the Thorcom VR1000 machine support to use
the new .pfn initialiser.Signed-off-by: Ben Dooks
Signed-off-by: Russell King -
Patch from Dirk Opfer
This patch adds MMC, IRDA and UDC support to the Sharp SL-6000x device. Also it adds a platform device for the keyboard driver.
Signed-off-by: Dirk Opfer
Signed-off-by: Richard Purdie
Signed-off-by: Russell King -
Add infrastructure for supporting per-cpu local timers to update
the profiling information and update system time accounting.Signed-off-by: Russell King
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Update comment on get_user_insn to the more general "pte lock", which may
or may not be the page_table_lock. Note vmtruncate handled like kswapd.Signed-off-by: Hugh Dickins
Signed-off-by: David S. Miller
08 Nov, 2005
14 commits
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arch/arm/kernel/irq.c:998:26: warning: Using plain integer as NULL pointer
arch/arm/kernel/smp.c:145:25: warning: Using plain integer as NULL pointer
arch/arm/kernel/smp.c:362:5: warning: symbol 'smp_call_function_on_cpu' was not declared. Should it be static?
drivers/video/amba-clcd.c:521:12: warning: symbol 'amba_clcdfb_init' was not declared. Should it be static?Signed-off-by: Russell King
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Signed-off-by: Russell King
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Until we have local timer support, we need to broadcast the
timer interrupt to the other CPUs. Also, add the missing
smp_send_timer() prototype to asm/smp.hSigned-off-by: Russell King
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For some stupid reason I can't explain (brown paper bag is at hand), I
removed the check pfn_valid() in the code that does the icache/dcache
coherency on POWER4 and later. That causes us to eventually try to
access non existing struct page when hashing in IO pages.Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Paul Mackerras -
Signed-off-by: Paul Mackerras
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On Tue, Nov 08, 2005 at 08:12:56AM +1100, Benjamin Herrenschmidt wrote:
> Yes, the MAX_ORDER should be different indeed. But can Kconfig do that ?
> That is have the default value be different based on a Kconfig option ?
> I don't see that ... We may have to do things differently here...This seems to be done in other parts of the Kconfig file. Using those
as an example, this should keep the MAX_ORDER block size at 16MB.Signed-off-by: Mike Kravetz
Signed-off-by: Paul Mackerras -
Even though we can enable and disable xmon at runtime now, there are a
few places in the merge tree that call xmon and xmon_printf directly.In the case below we call die() which will call xmon if it is enabled.
Also remove an unnecessary include of xmon.h in smp.c.
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Oprofile was hardwiring the MMCRA sample bit to 1 but on newer cpus
(eg POWER5) we want to vary it based on the group being sampled.Add a temporary workaround until people update their oprofile userspace.
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
On ppc64 we end up with a negative value for the data size in the memory
boot message:Memory: 2035560k/2097152k available (5792k kernel code, 89564k reserved,
18014398509481632k data, 870k bss, 352k init)It turns out the section ordering of the linker script is different on
ppc32 and ppc64, so just count data as _edata - _sdata which should work
on both.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
xmon() prototype is inconsistent between ARCH=ppc and ARCH=powerpc,
thus causing ARCH=ppc build breakage.Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Paul Mackerras -
Building a PowerMac kernel with ARCH=powerpc causes a bunch of warnings,
this fixes some of themSigned-off-by: Benjamin Herrenschmidt
Signed-off-by: Paul Mackerras
