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* Merge branch 'release' of ↵Linus Torvalds2006-12-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (68 commits) ACPI: replace kmalloc+memset with kzalloc ACPI: Add support for acpi_load_table/acpi_unload_table_id fbdev: update after backlight argument change ACPI: video: Add dev argument for backlight_device_register ACPI: Implement acpi_video_get_next_level() ACPI: Kconfig - depend on PM rather than selecting it ACPI: fix NULL check in drivers/acpi/osl.c ACPI: make drivers/acpi/ec.c:ec_ecdt static ACPI: prevent processor module from loading on failures ACPI: fix single linked list manipulation ACPI: ibm_acpi: allow clean removal ACPI: fix git automerge failure ACPI: ibm_acpi: respond to workqueue update ACPI: dock: add uevent to indicate change in device status ACPI: ec: Lindent once again ACPI: ec: Change #define to enums there possible. ACPI: ec: Style changes. ACPI: ec: Acquire Global Lock under EC mutex. ACPI: ec: Drop udelay() from poll mode. Loop by reading status field instead. ACPI: ec: Rename gpe_bit to gpe ...
| * merge linus into test branchLen Brown2006-12-20
| |\
| * | ACPI: fix git automerge failureLen Brown2006-12-16
| | | | | | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| * | Pull trivial into test branchLen Brown2006-12-16
| |\ \ | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/acpi/ec.c
| | * | ACPI: acpi-cpufreq: remove unused data when !CONFIG_SMPAndrew Morton2006-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | acpi-cpufreq.c, speedstep-centrino.c: warning: 'sw_any_bug_dmi_table' defined but not used Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: uninline ACPI global locking functionsAndrew Morton2006-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Fixes a build problem with CONFIG_M386=y (include file dependencies get messy). - Share the implementation between x86 and x86_64 - These are too big to inline anyway. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | [PATCH] sched: fix bad missed wakeups in the i386, x86_64, ia64, ACPI and ↵Ingo Molnar2006-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | APM idle code Fernando Lopez-Lezcano reported frequent scheduling latencies and audio xruns starting at the 2.6.18-rt kernel, and those problems persisted all until current -rt kernels. The latencies were serious and unjustified by system load, often in the milliseconds range. After a patient and heroic multi-month effort of Fernando, where he tested dozens of kernels, tried various configs, boot options, test-patches of mine and provided latency traces of those incidents, the following 'smoking gun' trace was captured by him: _------=> CPU# / _-----=> irqs-off | / _----=> need-resched || / _---=> hardirq/softirq ||| / _--=> preempt-depth |||| / ||||| delay cmd pid ||||| time | caller \ / ||||| \ | / IRQ_19-1479 1D..1 0us : __trace_start_sched_wakeup (try_to_wake_up) IRQ_19-1479 1D..1 0us : __trace_start_sched_wakeup <<...>-5856> (37 0) IRQ_19-1479 1D..1 0us : __trace_start_sched_wakeup (c01262ba 0 0) IRQ_19-1479 1D..1 0us : resched_task (try_to_wake_up) IRQ_19-1479 1D..1 0us : __spin_unlock_irqrestore (try_to_wake_up) ... <idle>-0 1...1 11us!: default_idle (cpu_idle) ... <idle>-0 0Dn.1 602us : smp_apic_timer_interrupt (c0103baf 1 0) ... <...>-5856 0D..2 618us : __switch_to (__schedule) <...>-5856 0D..2 618us : __schedule <<idle>-0> (20 162) <...>-5856 0D..2 619us : __spin_unlock_irq (__schedule) <...>-5856 0...1 619us : trace_stop_sched_switched (__schedule) <...>-5856 0D..1 619us : trace_stop_sched_switched <<...>-5856> (37 0) what is visible in this trace is that CPU#1 ran try_to_wake_up() for PID:5856, it placed PID:5856 on CPU#0's runqueue and ran resched_task() for CPU#0. But it decided to not send an IPI that no CPU - due to TS_POLLING. But CPU#0 never woke up after its NEED_RESCHED bit was set, and only rescheduled to PID:5856 upon the next lapic timer IRQ. The result was a 600+ usecs latency and a missed wakeup! the bug turned out to be an idle-wakeup bug introduced into the mainline kernel this summer via an optimization in the x86_64 tree: commit 495ab9c045e1b0e5c82951b762257fe1c9d81564 Author: Andi Kleen <ak@suse.de> Date: Mon Jun 26 13:59:11 2006 +0200 [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status During some profiling I noticed that default_idle causes a lot of memory traffic. I think that is caused by the atomic operations to clear/set the polling flag in thread_info. There is actually no reason to make this atomic - only the idle thread does it to itself, other CPUs only read it. So I moved it into ti->status. the problem is this type of change: if (!hlt_counter && boot_cpu_data.hlt_works_ok) { - clear_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status &= ~TS_POLLING; smp_mb__after_clear_bit(); while (!need_resched()) { local_irq_disable(); this changes clear_thread_flag() to an explicit clearing of TS_POLLING. clear_thread_flag() is defined as: clear_bit(flag, &ti->flags); and clear_bit() is a LOCK-ed atomic instruction on all x86 platforms: static inline void clear_bit(int nr, volatile unsigned long * addr) { __asm__ __volatile__( LOCK_PREFIX "btrl %1,%0" hence smp_mb__after_clear_bit() is defined as a simple compile barrier: #define smp_mb__after_clear_bit() barrier() but the explicit TS_POLLING clearing introduced by the patch: + current_thread_info()->status &= ~TS_POLLING; is not an atomic op! So the clearing of the TS_POLLING bit is freely reorderable with the reading of the NEED_RESCHED bit - and both now reside in different memory addresses. CPU idle wakeup very much depends on ordered memory ops, the clearing of the TS_POLLING flag must always be done before we test need_resched() and hit the idle instruction(s). [Symmetrically, the wakeup code needs to set NEED_RESCHED before it tests the TS_POLLING flag, so memory ordering is paramount.] Fernando's dual-core Athlon64 system has a sufficiently advanced memory ordering model so that it triggered this scenario very often. ( And it also turned out that the reason why these latencies never triggered on my testsystems is that i routinely use idle=poll, which was the only idle variant not affected by this bug. ) The fix is to change the smp_mb__after_clear_bit() to an smp_mb(), to act as an absolute barrier between the TS_POLLING write and the NEED_RESCHED read. This affects almost all idling methods (default, ACPI, APM), on all 3 x86 architectures: i386, x86_64, ia64. Signed-off-by: Ingo Molnar <mingo@elte.hu> Tested-by: Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] ptrace: Fix EFL_OFFSET value according to i386 pda changesJeremy Fitzhardinge2006-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PDA patches introduced a bug in ptrace: it reads eflags from the wrong place on the target's stack, but writes it back to the correct place. The result is a corrupted eflags, which is most visible when it turns interrupts off unexpectedly. This patch fixes this by making the ptrace code a little less fragile. It changes [gs]et_stack_long to take a straightforward byte offset into struct pt_regs, rather than requiring all callers to do a sizeof(struct pt_regs) offset adjustment. This means that the eflag's offset (EFL_OFFSET) on the target stack can be simply computed with offsetof(). Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Frederik Deweerdt <deweerdt@free.fr> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] memory hotplug: fix compile error for i386 with NUMA configYasunori Goto2006-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix compile error when config memory hotplug with numa on i386. The cause of compile error was missing of arch_add_memory(), remove_memory(), and memory_add_physaddr_to_nid(). Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: David Rientjes <rientjes@cs.washington.edu> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] microcode: fix mc_cpu_notifier section warningJean Delvare2006-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Structure mc_cpu_notifier references a __cpuinit function, but isn't declared __cpuinitdata itself: WARNING: arch/i386/kernel/microcode.o - Section mismatch: reference to .init.text: from .data after 'mc_cpu_notifier' (at offset 0x118) Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] compile error of register_memory()Yasunori Goto2006-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | register_memory() becomes double definition in 2.6.20-rc1. It is defined in arch/i386/kernel/setup.c as static definition in 2.6.19. But it is moved to arch/i386/kernel/e820.c in 2.6.20-rc1. And same name function is defined in driver/base/memory.c too. So, it becomes cause of compile error of duplicate definition if memory hotplug option is on. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | PCI: Fix multiple problems with VIA hardwareAlan Cox2006-12-20
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is designed to fix: - Disk eating corruptor on KT7 after resume from RAM - VIA IRQ handling - VIA fixups for bus lockups after resume from RAM The core of this is to add a table of resume fixups run at resume time. We need to do this for a variety of boards and features, but particularly we need to do this to get various critical VIA fixups done on resume. The second part of the problem is to handle VIA IRQ number rules which are a bit odd and need special handling for PIC interrupts. Various patches broke various boxes and while this one may not be perfect (hopefully it is) it ensures the workaround is applied to the right devices only. From: Jean Delvare <khali@linux-fr.org> Now that PCI quirks are replayed on software resume, we can safely re-enable the Asus SMBus unhiding quirk even when software suspend support is enabled. [akpm@osdl.org: fix const warning] Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds2006-12-17
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] longhaul compile fix. [CPUFREQ] Advise not to use longhaul on VIA C7. [CPUFREQ] set policy->curfreq on initialization [CPUFREQ] Trivial cleanup for acpi read/write port in acpi-cpufreq.c [CPUFREQ] fixes typo in cpufreq.c
| * | | [CPUFREQ] longhaul compile fix.Dave Jones2006-12-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Some gcc's are more anal than others about empty switch labels. error: label at end of compound statement Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] Advise not to use longhaul on VIA C7.Dave Jones2006-12-17
| | | | | | | | | | | | | | | | | | | | | | | | C7's are centrino speedstep-alike. Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] set policy->curfreq on initializationMattia Dongili2006-12-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check the correct variable and set policy->cur upon acpi-cpufreq initialization to allow the userspace governor to be used as default. Signed-off-by: Mattia Dongili <malattia@linux.it> Acked-by: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] Trivial cleanup for acpi read/write port in acpi-cpufreq.cVenkatesh Pallipadi2006-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Small cleanup in acpi-cpufreq. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | | Remove stack unwinder for nowLinus Torvalds2006-12-15
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | It has caused more problems than it ever really solved, and is apparently not getting cleaned up and fixed. We can put it back when it's stable and isn't likely to make warning or bug events worse. In the meantime, enable frame pointers for more readable stack traces. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day2006-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] update Tigran's email addressesTigran Aivazian2006-12-13
| | | | | | | | | | | | | | | | | | | | | | | | As Adrian pointed out recently, there were still a couple of places where I should have fixed my email address. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] arch/i386/kernel/smpboot.c: remove unneeded ifdefAndrew Morton2006-12-13
|/ / | | | | | | | | | | | | #ifdef CONFIG_SMP in a file which isn't compiled in non-SMP kernels. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge ../linusDave Jones2006-12-12
|\ \ | | | | | | | | | | | | | | | Conflicts: drivers/cpufreq/cpufreq.c
| * | [PATCH] x86-64: no paravirt for X86_VOYAGER or X86_VISWSRandy Dunlap2006-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since Voyager and Visual WS already define ARCH_SETUP, it looks like PARAVIRT shouldn't be offered for them. In file included from arch/i386/kernel/setup.c:63: include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin= ed In file included from include/asm/msr.h:5, from include/asm/processor.h:17, from include/asm/thread_info.h:16, from include/linux/thread_info.h:21, from include/linux/preempt.h:9, from include/linux/spinlock.h:49, from include/linux/capability.h:45, from include/linux/sched.h:46, from arch/i386/kernel/setup.c:26: include/asm/paravirt.h:163:1: warning: this is the location of the previous= definition In file included from arch/i386/kernel/setup.c:63: include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin= ed In file included from include/asm/msr.h:5, from include/asm/processor.h:17, from include/asm/thread_info.h:16, from include/linux/thread_info.h:21, from include/linux/preempt.h:9, from include/linux/spinlock.h:49, from include/linux/capability.h:45, from include/linux/sched.h:46, from arch/i386/kernel/setup.c:26: include/asm/paravirt.h:163:1: warning: this is the location of the previous= definition Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
| * | [PATCH] i386: Fix io_apic.c warningAndi Kleen2006-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc 4.2 warns linux/arch/i386/kernel/io_apic.c: In function ‘create_irq’: linux/arch/i386/kernel/io_apic.c:2488: warning: ‘vector’ may be used uninitialized in this function The warning is false, but somewhat legitimate so work around it. Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] i386: export smp_num_siblings for oprofileRandy Dunlap2006-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | oprofile uses smp_num_siblings without testing for CONFIG_X86_HT. I looked at modifying oprofile, but this way is cleaner & simpler and I didn't see a good reason not to just export it when CONFIG_SMP. WARNING: "smp_num_siblings" [arch/i386/oprofile/oprofile.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86: Work around gcc 4.2 over aggressive optimizerAndi Kleen2006-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new PDA code uses a dummy _proxy_pda variable to describe memory references to the PDA. It is never referenced in inline assembly, but exists as input/output arguments. gcc 4.2 in some cases can CSE references to this which causes unresolved symbols. Define it to zero to avoid this. Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86: Fix boot hang due to nmi watchdog init codeRavikiran G Thirumalai2006-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2.6.19 stopped booting (or booted based on build/config) on our x86_64 systems due to a bug introduced in 2.6.19. check_nmi_watchdog schedules an IPI on all cpus to busy wait on a flag, but fails to set the busywait flag if NMI functionality is disabled. This causes the secondary cpus to spin in an endless loop, causing the kernel bootup to hang. Depending upon the build, the busywait flag got overwritten (stack variable) and caused the kernel to bootup on certain builds. Following patch fixes the bug by setting the busywait flag before returning from check_nmi_watchdog. I guess using a stack variable is not good here as the calling function could potentially return while the busy wait loop is still spinning on the flag. AK: I redid the patch significantly to be cleaner Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86: Fix verify_quirk_intel_irqbalance()Andi Kleen2006-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix verify_quirk_intel_irqbalance(). genapic checks should really happen only on affected versions of the E7520/E7320/E7525 based platforms. AK: This should akpm's Coyote SDV Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] i386: Update defconfigAndi Kleen2006-12-09
| | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] CPU hotplug broken with 2GB VMSPLITShaohua Li2006-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In VMSPLIT mode, kernel PGD might have more entries than user space. Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] visws: sgivwfb as module needs exportsRandy Dunlap2006-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With CONFIG_FB_SGIVW=m: WARNING: "sgivwfb_mem_size" [drivers/video/sgivwfb.ko] undefined! WARNING: "sgivwfb_mem_phys" [drivers/video/sgivwfb.ko] undefined! (or don't allow FB_SGIVW=m in Kconfig) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] LOG2: Implement a general integer log2 facility in the kernelDavid Howells2006-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This facility provides three entry points: ilog2() Log base 2 of unsigned long ilog2_u32() Log base 2 of u32 ilog2_u64() Log base 2 of u64 These facilities can either be used inside functions on dynamic data: int do_something(long q) { ...; y = ilog2(x) ...; } Or can be used to statically initialise global variables with constant values: unsigned n = ilog2(27); When performing static initialisation, the compiler will report "error: initializer element is not constant" if asked to take a log of zero or of something not reducible to a constant. They treat negative numbers as unsigned. When not dealing with a constant, they fall back to using fls() which permits them to use arch-specific log calculation instructions - such as BSR on x86/x86_64 or SCAN on FRV - if available. [akpm@osdl.org: MMC fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Howells <dhowells@redhat.com> Cc: Wojtek Kaniewski <wojtekka@toxygen.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] i386: change uses of f_{dentry, vfsmnt} to use f_pathJosef "Jeff" Sipek2006-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the i386 arch code. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] Generic BUG for i386Jeremy Fitzhardinge2006-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes i386 use the generic BUG machinery. There are no functional changes from the old i386 implementation. The main advantage in using the generic BUG machinery for i386 is that the inlined overhead of BUG is just the ud2a instruction; the file+line(+function) information are no longer inlined into the instruction stream. This reduces cache pollution, and makes disassembly work properly. Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Andi Kleen <ak@muc.de> Cc: Hugh Dickens <hugh@veritas.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds2006-12-07
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits) [PATCH] x86-64: Export smp_call_function_single [PATCH] i386: Clean up smp_tune_scheduling() [PATCH] unwinder: move .eh_frame to RODATA [PATCH] unwinder: fully support linker generated .eh_frame_hdr section [PATCH] x86-64: don't use set_irq_regs() [PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq [PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM [PATCH] i386: replace kmalloc+memset with kzalloc [PATCH] x86-64: remove remaining pc98 code [PATCH] x86-64: remove unused variable [PATCH] x86-64: Fix constraints in atomic_add_return() [PATCH] x86-64: fix asm constraints in i386 atomic_add_return [PATCH] x86-64: Correct documentation for bzImage protocol v2.05 [PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code [PATCH] x86-64: Fix numaq build error [PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header [PATCH] unwinder: Add debugging output to the Dwarf2 unwinder [PATCH] x86-64: Clarify error message in GART code [PATCH] x86-64: Fix interrupt race in idle callback (3rd try) [PATCH] x86-64: Remove unwind stack pointer alignment forcing again ... Fixed conflict in include/linux/uaccess.h manually Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| | * | [PATCH] i386: Clean up smp_tune_scheduling()Adrian Bunk2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - remove the write-only local variable "bandwidth" - don't set "max_cache_size" in the (cachesize < 0) case: that's already handled in kernel/sched.c:measure_migration_cost() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org>
| | * | [PATCH] unwinder: move .eh_frame to RODATAJan Beulich2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The .eh_frame section contents is never written to, so it can as well benefit from CONFIG_DEBUG_RODATA. Diff-ed against firstfloor tree. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] x86-64: don't use set_irq_regs()Oleg Nesterov2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't need to setup _irq_regs in smp_xxx_interrupt (except apic timer). These handlers run with irqs disabled and do not call functions which need "struct pt_regs". Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Acked-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
| | * | [PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEMRandy Dunlap2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generally better for allmodconfig coverage. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
| | * | [PATCH] i386: replace kmalloc+memset with kzallocBurman Yan2006-12-06
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] x86-64: remove remaining pc98 codeAdrian Bunk2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] x86-64: remove unused variableDavid Rientjes2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unused variable in msr_write(). Reported by D Binderman <dcb314@hotmail.com>. Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: David Rientjes <rientjes@cs.washington.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR codeBurman Yan2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] x86-64: Fix numaq build errorRandy Dunlap2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CC arch/i386/boot/compressed/misc.o arch/i386/boot/compressed/misc.c:120: error: static declaration of 'xquad_portio' follows non-static declaration include/asm/io.h:275: error: previous declaration of 'xquad_portio' was here make[2]: *** [arch/i386/boot/compressed/misc.o] Error 1 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] unwinder: more sanity checks in Dwarf2 unwinderJan Beulich2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tighten the requirements on both input to and output from the Dwarf2 unwinder. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] i386: always enable regparmAdrian Bunk2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -mregparm=3 has been enabled by default for some time on i386, and AFAIK there aren't any problems with it left. This patch removes the REGPARM config option and sets -mregparm=3 unconditionally. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] i386: touch softlockup during backtracingDave Jones2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes the soft watchdog fires after we're done oopsing. See http://projects.info-pull.com/mokb/MOKB-25-11-2006.html for an example. AK: changed to touch_nmi_watchdog() Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] x86: add sysctl for kstack_depth_to_printChuck Ebbert2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add sysctl for kstack_depth_to_print. This lets users change the amount of raw stack data printed in dump_stack() without having to reboot. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] i386: remove duplicate printkDave Jones2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We do the exact same printk about a dozen lines above with no intermediate printk's. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
| | * | [PATCH] i386: Preserve EFI run time regions with memmap parameterArtiom Myaskouvskey2006-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using memmap kernel parameter in EFI boot we should also add to memory map memory regions of runtime services to enable their mapping later. AK: merged and cleaned up the patch Signed-off-by: Artiom Myaskouvskey <artiom.myaskouvskey@intel.com> Signed-off-by: Andi Kleen <ak@suse.de>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 11:17:41 -0500