- 17 6月, 2009 5 次提交
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由 Thomas Gleixner 提交于
The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup Convert the last remaining users to struct irq_chip and remove the define. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
ALLOC_WMARK_MIN, ALLOC_WMARK_LOW and ALLOC_WMARK_HIGH determin whether pages_min, pages_low or pages_high is used as the zone watermark when allocating the pages. Two branches in the allocator hotpath determine which watermark to use. This patch uses the flags as an array index into a watermark array that is indexed with WMARK_* defines accessed via helpers. All call sites that use zone->pages_* are updated to use the helpers for accessing the values and the array offsets for setting. Signed-off-by: NMel Gorman <mel@csn.ul.ie> Reviewed-by: NChristoph Lameter <cl@linux-foundation.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mel Gorman 提交于
Callers of alloc_pages_node() can optionally specify -1 as a node to mean "allocate from the current node". However, a number of the callers in fast paths know for a fact their node is valid. To avoid a comparison and branch, this patch adds alloc_pages_exact_node() that only checks the nid with VM_BUG_ON(). Callers that know their node is valid are then converted. Signed-off-by: NMel Gorman <mel@csn.ul.ie> Reviewed-by: NChristoph Lameter <cl@linux-foundation.org> Reviewed-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Acked-by: Paul Mundt <lethal@linux-sh.org> [for the SLOB NUMA bits] Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alexey Dobriyan 提交于
* create mm/init-mm.c, move init_mm there * remove INIT_MM, initialize init_mm with C99 initializer * unexport init_mm on all arches: init_mm is already unexported on x86. One strange place is some OMAP driver (drivers/video/omap/) which won't build modular, but it's already wants get_vm_area() export. Somebody should look there. [akpm@linux-foundation.org: add missing #includes] Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Americo Wang <xiyou.wangcong@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Arnd Bergmann 提交于
PIT_TICK_RATE is currently defined in four architectures, but in three different places. While linux/timex.h is not the perfect place for it, it is still a reasonable replacement for those drivers that traditionally use asm/timex.h to get CLOCK_TICK_RATE and expect it to be the PIT frequency. Note that for Alpha, the actual value changed from 1193182UL to 1193180UL. This is unlikely to make a difference, and probably can only improve accuracy. There was a discussion on the correct value of CLOCK_TICK_RATE a few years ago, after which every existing instance was getting changed to 1193182. According to the specification, it should be 1193181.818181... Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Len Brown <lenb@kernel.org> Cc: john stultz <johnstul@us.ibm.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 6月, 2009 1 次提交
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由 Rusty Russell 提交于
ad6561df ("module: trim exception table on init free.") put a bogus trim_init_extable() function into ia64 which didn't compile. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 14 6月, 2009 4 次提交
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由 Nicolas Pitre 提交于
Without this, the default implementation is a no op which is completely wrong with a VIVT cache, and usage of sg_copy_buffer() produces unpredictable results. Tested-by: NSebastian Andrzej Siewior <bigeasy@breakpoint.cc> CC: stable@kernel.org Signed-off-by: NNicolas Pitre <nico@marvell.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Jaswinder Singh Rajput 提交于
fix the following 'make headers_check' warnings: usr/include/asm-mn10300/setup.h:14: extern's make no sense in userspace usr/include/asm-mn10300/setup.h:15: extern's make no sense in userspace Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
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由 Jaswinder Singh Rajput 提交于
fix the following 'make headers_check' warning: usr/include/asm-mn10300/ptrace.h:80: extern's make no sense in userspace Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
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由 David Howells 提交于
Fix interaction with new generic header stuff as added by: commit 6103ec56 Author: Arnd Bergmann <arnd@arndb.de> Date: Wed May 13 22:56:27 2009 +0000 asm-generic: add generic ABI headers The problem is that asm/signal.h has been made to include asm-generic/signal.h, but the redundant stuff from asm/signal.h has not been discarded, leading to multiple redefinitions. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 6月, 2009 15 次提交
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由 Haavard Skinnemoen 提交于
The unaligned address exception handler (and others) does not scan the fixup tables before oopsing. This is bad because it means passing a badly aligned pointer from user space might crash the kernel. Fix this by scanning the fixup tables in _exception(). This should resolve the issue for unaligned addresses as well as other less common exceptions that might be happening during a userspace access. The page fault handler already does fixup processing. Signed-off-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
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由 Alan Stern 提交于
This patch (as1241) renames a bunch of functions in the PM core. Rather than go through a boring list of name changes, suffice it to say that in the end we have a bunch of pairs of functions: device_resume_noirq dpm_resume_noirq device_resume dpm_resume device_complete dpm_complete device_suspend_noirq dpm_suspend_noirq device_suspend dpm_suspend device_prepare dpm_prepare in which device_X does the X operation on a single device and dpm_X invokes device_X for all devices in the dpm_list. In addition, the old dpm_power_up and device_resume_noirq have been combined into a single function (dpm_resume_noirq). Lastly, dpm_suspend_start and dpm_resume_end are the renamed versions of the former top-level device_suspend and device_resume routines. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Acked-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Magnus Damm 提交于
Rename the functions performing "_noirq" dev_pm_ops operations from device_power_down() and device_power_up() to device_suspend_noirq() and device_resume_noirq(). The new function names are chosen to show that the functions are responsible for calling the _noirq() versions to finalize the suspend/resume operation. The current function names do not perform power down/up anymore so the names may be misleading. Global function renames: - device_power_down() -> device_suspend_noirq() - device_power_up() -> device_resume_noirq() Static function renames: - suspend_device_noirq() -> __device_suspend_noirq() - resume_device_noirq() -> __device_resume_noirq() Signed-off-by: NMagnus Damm <damm@igel.co.jp> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Acked-by: NLen Brown <lenb@kernel.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Magnus Damm 提交于
This patch removes unused asm/suspend.h files for the following architectures: alpha, arm, ia64, m68k, mips, s390, um Signed-off-by: NMagnus Damm <damm@igel.co.jp> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Sergio Luis 提交于
This is the last unification step. Here we do remove one of the files and rename the left one as cpu.c, as both are now the same. Also update power/Makefile, telling it to build cpu.o, instead of cpu_(32|64).o Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NLauro Salmito <laurosalmito@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Sergio Luis 提交于
In this step, we do unify the copyright notes for both files cpu_32.c and cpu_64.c, making such files exactly the same. It's the last step before the actual unification, that will rename one of them to cpu.c and remove the other one. Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NLauro Salmito <laurosalmito@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Sergio Luis 提交于
In this step we do unify cpu_32.c and cpu_64.c functions that work on restoring the saved processor state. Also, we do eliminate the forward declaration of fix_processor_context() for X86_64, as it's not needed anymore. Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NLauro Salmito <laurosalmito@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Sergio Luis 提交于
In this step we do unify cpu_32.c and cpu_64.c functions that work on saving the processor state. Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NLauro Salmito <laurosalmito@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Sergio Luis 提交于
Aiming total unification of cpu_32.c and cpu_64.c, in this step we do unify the global variables and existing forward declarations for such files. Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NLauro Salmito <laurosalmito@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Sergio Luis 提交于
First step towards the unification of cpu_32.c and cpu_64.c. This commit unifies the headers of such files, making both of them use the same header files. It also remove the uneeded <module.h>. Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NLauro Salmito <laurosalmito@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Jaswinder Singh Rajput 提交于
One of the numbers in arch/x86/kernel/acpi/sleep.c is long, but it is not annotated appropriately, so sparese warns about it. Fix that. [rjw: added the changelog.] Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Jean Delvare 提交于
fix ETIMEOUT -> ETIMEDOUT typos Signed-off-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Pavel Machek 提交于
.ko is normally not included in Kconfig help, make it consistent. Signed-off-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Sankar P 提交于
Fixes a trivial spelling error in powerpc code comments. Signed-off-by: NSankar P <sankar.curiosity@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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由 Martin Olsson 提交于
trivial: fix typos s/paramter/parameter/ and s/excute/execute/ in documentation and source comments. Signed-off-by: NMartin Olsson <martin@minimum.se> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 12 6月, 2009 15 次提交
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由 Matias Zabaljauregui 提交于
This version requires that host and guest have the same PAE status. NX cap is not offered to the guest, yet. Signed-off-by: NMatias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Matias Zabaljauregui 提交于
Add support for kvm_hypercall4(); PAE wants it. Signed-off-by: Matias Zabaljauregui <zabaljauregui at gmail.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Matias Zabaljauregui 提交于
replace LHCALL_SET_PMD with LHCALL_SET_PGD hypercall name (That's really what it is, and the confusion gets worse with PAE support) Signed-off-by: NMatias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Reported-by: NJeremy Fitzhardinge <jeremy@goop.org>
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由 Matias Zabaljauregui 提交于
Some cleanups and replace direct assignment with native_set_* macros which properly handle 64-bit entries when PAE is activated Signed-off-by: NMatias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
The downside of the last patch which made restore_flags and irq_enable check interrupts is that they are now too big to be patched directly into the callsites, so the C versions are always used. But the C versions go via PV_CALLEE_SAVE_REGS_THUNK which saves all the registers. In fact, we don't need any registers in the fast path, so we can do better than this if we actually code them in assembler. The results are in the noise, but since it's about the same amount of code, it's worth applying. 1GB Guest->Host: input(suppressed),output(suppressed) Before: Seconds: 0:16.53 Packets: 377268,753673 Interrupts: 22461,24297 Notifications: 1(5245),21303(732370) Net IRQs triggered: 377023(245),42578(711095) After: Seconds: 0:16.48 Packets: 377289,753673 Interrupts: 22281,24465 Notifications: 1(5245),21296(732377) Net IRQs triggered: 377060(229),42564(711109) Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
lguest never checked for pending interrupts when enabling interrupts, and things still worked. However, it makes a significant difference to TCP performance, so it's time we fixed it by introducing a pending_irq flag and checking it on irq_restore and irq_enable. These two routines are now too big to patch into the 8/10 bytes patch space, so we drop that code. Note: The high latency on interrupt delivery had a very curious effect: once everything else was optimized, networking without GSO was faster than networking with GSO, since more interrupts were sent and hence a greater chance of one getting through to the Guest! Note2: (Almost) Closing the same loophole for iret doesn't have any measurable effect, so I'm leaving that patch for the moment. Before: 1GB tcpblast Guest->Host: 30.7 seconds 1GB tcpblast Guest->Host (no GSO): 76.0 seconds After: 1GB tcpblast Guest->Host: 6.8 seconds 1GB tcpblast Guest->Host (no GSO): 27.8 seconds Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
Copy from arch/x86/kernel/irqinit_32.c: we don't use the vectors beyond LGUEST_IRQS (if any), but we might as well set them all. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Jaswinder Singh Rajput 提交于
Sachin Sant reported these compiler errors: CC arch/powerpc/kernel/power7-pmu.o arch/powerpc/kernel/power7-pmu.c:297: error: PERF_COUNT_CPU_CYCLES undeclared here (not in a function) Which happened because a last-minute rename of symbols crossed with the Power7 support patch. Fix this by using the new symbol names. Reported-by: NSachin Sant <sachinp@in.ibm.com> Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@ozlabs.org LKML-Reference: <1244788494.5554.1.camel@ht.satnam> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Rusty Russell 提交于
Everyone cut and paste this comment from my original one. We now do it generically, so cut the comments. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: Amerigo Wang <amwang@redhat.com>
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由 Rusty Russell 提交于
It's theoretically possible that there are exception table entries which point into the (freed) init text of modules. These could cause future problems if other modules get loaded into that memory and cause an exception as we'd see the wrong fixup. The only case I know of is kvm-intel.ko (when CONFIG_CC_OPTIMIZE_FOR_SIZE=n). Amerigo fixed this long-standing FIXME in the x86 version, but this patch is more general. This implements trim_init_extable(); most archs are simple since they use the standard lib/extable.c sort code. Alpha and IA64 use relative addresses in their fixups, so thier trimming is a slight variation. Sparc32 is unique; it doesn't seem to define ARCH_HAS_SORT_EXTABLE, yet it defines its own sort_extable() which overrides the one in lib. It doesn't sort, so we have to mark deleted entries instead of actually trimming them. Inspired-by: NAmerigo Wang <amwang@redhat.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: linux-alpha@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-ia64@vger.kernel.org
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由 Amerigo Wang 提交于
As Christoph Hellwig suggested, module_alloc() actually can be unified for i386 and x86_64 (of course, also UML). Signed-off-by: NWANG Cong <amwang@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: 'Ingo Molnar' <mingo@elte.hu> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Amerigo Wang 提交于
Due to the previous merge, uml needs to be fixed. Signed-off-by: NWANG Cong <amwang@redhat.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Amerigo Wang 提交于
Merge the rest functions together, with proper preprocessing directives. Finally remove module_{32|64}.c. Signed-off-by: NWANG Cong <amwang@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Amerigo Wang 提交于
Merge the same functions both in module_32.c and module_64.c into module.c. This is the first step to merge both of them finally. Signed-off-by: NWANG Cong <amwang@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Yong Wang 提交于
The fixed-function performance counters do not work on current Atom processors. Use the general-purpose ones instead. Signed-off-by: NYong Wang <yong.y.wang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <20090612080855.GA2286@ywang-moblin2.bj.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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