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* dm crypt: add post processing queueMilan Broz2007-10-19
| | | | | | | | | | | | | Add post-processing queue (per crypt device) for read operations. Current implementation uses only one queue for all operations and this can lead to starvation caused by many requests waiting for memory allocation. But the needed memory-releasing operation is queued after these requests (in the same queue). Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm crypt: use per device singlethread workqueuesMilan Broz2007-10-19
| | | | | | | | Use a separate single-threaded workqueue for each crypt device instead of one global workqueue. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm mpath: emc fix an error messageAlasdair G Kergon2007-10-19
| | | | | | Correct an error message, reported by Michael Wood <michael@frogfoot.com>. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm: bio_list macro renamingAlasdair G Kergon2007-10-19
| | | | | | | | Remove BIO_LIST and DEFINE_BIO_LIST macros that gain us nothing since contents are initialised to NULL. Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm io:ctl remove vmalloc void castJesper Juhl2007-10-19
| | | | | | | | | In drivers/md/dm-ioctl.c::copy_params() there's a call to vmalloc() where we currently cast the return value, but that's pretty pointless given that vmalloc() returns "void *". Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm: tidy bio_io_error usageMilan Broz2007-10-19
| | | | | | | | | | Use bio_io_error() in only two places and tidy the code, preparing for later patches. There is no functional change in this patch. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* kcopyd use mutex instead of semaphoreMatthias Kaehlcke2007-10-19
| | | | | | | | | | Kcopyd uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore, Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* dm: use kzallocDmitry Monakhov2007-10-19
| | | | | | | Convert kmalloc() + memset() to kzalloc(). Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm: use is_power_of_2vignesh babu2007-10-19
| | | | | | | Replacing n & (n - 1) for power of 2 check by is_power_of_2(n) Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm: fix thaw_bdevJun'ichi Nomura2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a bd_mount_sem counter corruption bug in device-mapper. thaw_bdev() should be called only when freeze_bdev() was called for the device. Otherwise, thaw_bdev() will up bd_mount_sem and corrupt the semaphore counter. struct block_device with the corrupted semaphore may remain in slab cache and be reused later. Attached patch will fix it by calling unlock_fs() instead. unlock_fs() will determine whether it should call thaw_bdev() by checking the device is frozen or not. Easy reproducer is: #!/bin/sh while [ 1 ]; do dmsetup --notable create a dmsetup --nolockfs suspend a dmsetup remove a done It's not easy to see the effect of corrupted semaphore. So I have tested with putting printk below in bdev_alloc_inode(): if (atomic_read(&ei->bdev.bd_mount_sem.count) != 1) printk(KERN_DEBUG "Incorrect semaphore count = %d (%p)\n", atomic_read(&ei->bdev.bd_mount_sem.count), &ei->bdev); Without the patch, I saw something like: Incorrect semaphore count = 17 (f2ab91c0) With the patch, the message didn't appear. The bug was introduced in 2.6.16 with this bug fix: commit d9dde59ba03095e526640988c0fedd75e93bc8b7 Date: Fri Feb 24 13:04:24 2006 -0800 [PATCH] dm: missing bdput/thaw_bdev at removal Need to unfreeze and release bdev otherwise the bdev inode with inconsistent state is reused later and cause problem. and backported to 2.6.15.5. It occurs only in free_dev(), which is called only when the dm device is removed. The buggy code is executed only if md->suspended_bdev is non-NULL and that can happen only when the device was suspended without noflush. Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: stable@kernel.org
* dm delay: fix statusMilan Broz2007-10-19
| | | | | | | | Fix missing space in dm-delay target status output if separate read and write delay are configured. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm delay: fix ctr error pathsDmitry Monakhov2007-10-19
| | | | | | | | Add missing 'dm_put_device' to dm-delay target constructor. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm raid1: fix leakageDmitry Monakhov2007-10-19
| | | | | | | | | Add missing 'dm_io_client_destroy' to alloc_context error path. Reorganize mirror constructor error path in order to prevent workqueue leakage. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm crypt: missing kfree in ctr error pathDmitry Monakhov2007-10-19
| | | | | | | Insert missing kfree() in crypt_iv_essiv_ctr() error path. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm crypt: drop device ref in ctr error pathDmitry Monakhov2007-10-19
| | | | | | | | Add a missing 'dm_put_device' in an error path in crypt target constructor. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* dm io:ctl use constant struct sizeMilan Broz2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Make size of dm_ioctl struct always 312 bytes on all supported architectures. This change retains compatibility with already-compiled code because it uses an embedded offset to locate the payload that follows the structure. On 64-bit architectures there is no change at all; on 32-bit we are increasing the size of dm-ioctl from 308 to 312 bytes. Currently with 32-bit userspace / 64-bit kernel on x86_64 some ioctls (including rename, message) are incorrectly rejected by the comparison against 'param + 1'. This breaks userspace lvrename and multipath 'fail_if_no_path' changes, for example. (BTW Device-mapper uses its own versioning and ignores the ioctl size bits. Only the generic ioctl compat code on mixed arches checks them, and that will continue to accept both sizes for now, but we intend to list 308 as deprecated and eventually remove it.) Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: Guido Guenther <agx@sigxcpu.org> Cc: Kevin Corry <kevcorry@us.ibm.com> Cc: stable@kernel.org
* dm mpath: rdac fix init raceBryn M. Reeves2007-10-19
| | | | | | | | | Re-order the initialisation of dm-rdac to avoid registering the hw handler before the workqueue has been initialised. Closes a race that would potentially give an oops. Signed-off-by: Bryn M. Reeves <breeves@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
* Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86Linus Torvalds2007-10-19
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (33 commits) x86: convert cpuinfo_x86 array to a per_cpu array x86: introduce frame_pointer() and stack_pointer() x86 & generic: change to __builtin_prefetch() i386: do not BUG_ON() when MSR is unknown x86: acpi use cpu_physical_id x86: convert cpu_llc_id to be a per cpu variable x86: convert cpu_to_apicid to be a per cpu variable i386: introduce "used_vectors" bitmap which can be used to reserve vectors. x86: use raw locks during oopses x86: honor _PAGE_PSE bit on page walks i386: do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE. x86: implement missing x86_64 function smp_call_function_mask() x86: use descriptor's functions instead of inline assembly i386: consolidate show_regs and show_registers for i386 i386: make callgraph use dump_trace() on i386/x86_64 x86: enable iommu_merge by default i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.h x86: Unify i386 and x86-64 early quirks x86: enable HPET on ICH3 and ICH4 x86: force enable HPET on VT8235/8237 chipsets ... Manually fix trivial conflict with task pid container helper changes in arch/x86/kernel/process_32.c
| * x86: convert cpuinfo_x86 array to a per_cpu arrayMike Travis2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpu_data is currently an array defined using NR_CPUS. This means that we overallocate since we will rarely really use maximum configured cpus. When NR_CPU count is raised to 4096 the size of cpu_data becomes 3,145,728 bytes. These changes were adopted from the sparc64 (and ia64) code. An additional field was added to cpuinfo_x86 to be a non-ambiguous cpu index. This corresponds to the index into a cpumask_t as well as the per_cpu index. It's used in various places like show_cpuinfo(). cpu_data is defined to be the boot_cpu_data structure for the NON-SMP case. Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: introduce frame_pointer() and stack_pointer()Jan Blunck2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch defines frame_pointer() and stack_pointer() similar to the already defined instruction_pointer(). Thus the oprofile code can be written in a more readable fashion. [ tglx: arch/x86 adaptation ] Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86 & generic: change to __builtin_prefetch()Andi Kleen2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | gcc 3.2+ supports __builtin_prefetch, so it's possible to use it on all architectures. Change the generic fallback in linux/prefetch.h to use it instead of noping it out. gcc should do the right thing when the architecture doesn't support prefetching Undefine the x86-64 inline assembler version and use the fallback. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * i386: do not BUG_ON() when MSR is unknownStephane Eranian2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is a small patch to change the behavior of the PMU msr allocator to avoid BUG_ON() when the MSR is unknwon. Instead, it now returns ok, which means "I do not manage". The current allocator is not yet managing the full set of PMU registers (e.g., GLOBAL_* on Core 2). [watchdog] do not BUG_ON() in the MSR allocator if MSR is unknown, return ok instead Signed-off-by: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: acpi use cpu_physical_idMike Travis2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is from an earlier message from Christoph Lameter: processor_core.c currently tries to determine the apicid by special casing for IA64 and x86. The desired information is readily available via cpu_physical_id() on IA64, i386 and x86_64. Signed-off-by: Christoph Lameter <clameter@sgi.com> Additionally, boot_cpu_id needed to be exported to fix compile errors in dma code when !CONFIG_SMP. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * x86: convert cpu_llc_id to be a per cpu variableMike Travis2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert cpu_llc_id from a static array sized by NR_CPUS to a per_cpu variable. This saves sizeof(cpu_llc_id) * NR unused cpus. Access is mostly from startup and CPU HOTPLUG functions. Note there's an additional change of the type of cpu_llc_id from int to u8 for ARCH i386 to correspond with the same type in ARCH x86_64. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: convert cpu_to_apicid to be a per cpu variableMike Travis2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts the x86_cpu_to_apicid array to be a per cpu variable. This saves sizeof(apicid) * NR unused cpus. Access is mostly from startup and CPU HOTPLUG functions. MP_processor_info() is one of the functions that require access to the x86_cpu_to_apicid array before the per_cpu data area is setup. For this case, a pointer to the __initdata array is initialized in setup_arch() and removed in smp_prepare_cpus() after the per_cpu data area is initialized. A second change is included to change the initial array value of ARCH i386 from 0xff to BAD_APICID to be consistent with ARCH x86_64. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * i386: introduce "used_vectors" bitmap which can be used to reserve vectors.Rusty Russell2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | This simplifies the io_apic.c __assign_irq_vector() logic and removes the explicit SYSCALL_VECTOR check, and also allows for vectors to be reserved by other mechanisms (ie. lguest). [ tglx: arch/x86 adaptation ] Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: use raw locks during oopsesAndi Kleen2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | Don't want any lockdep or other fragile machinery to run during oopses. Use raw spinlocks directly for oops locking. Also disables irq flag tracing there. [ tglx: arch/x86 adaptation ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: honor _PAGE_PSE bit on page walksJan Beulich2007-10-19
| | | | | | | | | | | | | | | | | | [ tglx: arch/x86 adaptation ] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * i386: do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE.Akinobu Mita2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE. [ tglx: arch/x86 adaptation ] Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: implement missing x86_64 function smp_call_function_mask()Laurent Vivier2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch defines the missing function smp_call_function_mask() for x86_64, this is more or less a cut&paste of i386 function. It removes also some duplicate code. This function is needed by KVM to execute a function on some CPUs. AK: Fixed description AK: Moved WARN_ON(irqs_disabled) one level up to not warn in the panic case. [ tglx: arch/x86 adaptation ] Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: use descriptor's functions instead of inline assemblyGlauber de Oliveira Costa2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides a new set of functions for managing the descriptor tables that can be used instead of putting the raw assembly in .c files. Remodeling of store_tr() suggested by Frederik Deweerdt. [ tglx: arch/x86 adaptation ] Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * i386: consolidate show_regs and show_registers for i386Pavel Emelyanov2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both functions printk the same information, except for CRx and debug registers in the show_registers() one and a bit different manner. So move the common code into one place. This is already done for x86_64, so I think it's worth having the same on i386. This saves 100 bytes of .rodata section :) ... but only 8 from .text :( [ tglx: arch/x86 adaptation ] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * i386: make callgraph use dump_trace() on i386/x86_64Jan Blunck2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch improves oprofile callgraphs for i386/x86_64. The old backtracing code was unable to produce kernel backtraces if the kernel wasn't compiled with framepointers. The code now uses dump_trace(). [ tglx: arch/x86 adaptation ] Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: enable iommu_merge by defaultAndi Kleen2007-10-19
| | | | | | | | | | | | | | | | [ tglx: arch/x86 adaptation ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.hStephane Eranian2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | [i386] add AMD Barcelona PMU MSR definitions AK: Not used right now, but will presumably at some point. [ tglx: arch/x86 adaptation ] Signed-off-by: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Unify i386 and x86-64 early quirksAndi Kleen2007-10-19
| | | | | | | | | | | | | | | | | | | | | | They were already very similar; just use the same file now. [ tglx: arch/x86 adaptation ] Cc: lenb@kernel.org Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: enable HPET on ICH3 and ICH4Udo A. Steinberg2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ICH3 and ICH4 have undocumented HPET capabilities. This patch enables HPET for platforms based around these ICHs. Tested on various ICH3 and ICH4 platforms. Because HPET is not officially documented for ICH3/4 and may not have been validated by chipset folks, we're on thin ice here. I'd recommend testing this patch in -hrt or -mm for a while and wait for success/failure reports before feeding it upstream. tglx: depends on the force_hpet command line option ! Signed-off-by: Udo A. Steinberg <us15@os.inf.tu-dresden.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: force enable HPET on VT8235/8237 chipsetsUdo A. Steinberg2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds quirks to force enable HPET on Via VT8235 and VT8237 chipsets. The datasheet for 8237 documents HPET functionality (although wrongly) whereas HPET is undocumented for 8235. Tested on A7V880 (8237) and K7VT4A+ (8235) boards. tglx: depends on the force_hept commandline option Signed-off-by: Udo A. Steinberg <us15@os.inf.tu-dresden.de> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: add force_hpet boot optionThomas Gleixner2007-10-19
| | | | | | | | | | | | | | | | | | add force_hpet boot option. (this will be useful to make the forced-enable quirks depend on.) Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: quirk.c trivial coding style and white space cleanupThomas Gleixner2007-10-19
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: don't zero pad addresses in segfault messageAndi Kleen2007-10-19
| | | | | | | | | | | | | | | | | | | | | | don't zero pad addresses in segfault message. Matches the other trap messages. This leaves some more space for the new file name. [ mingo: arch/x86 adaptation ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Use linux/elfcore-compat.hRoland McGrath2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes x86-64's ia32 code use the new linux/elfcore-compat.h, reducing some hand-copied duplication. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: merge init_task_32/64.cHiroshi Shimamoto2007-10-19
| | | | | | | | | | | | | | | | | | | | | | Merge init_task_32/64.c. Move 64bit per cpu data orig_ist to setup64.c. [ mingo: fixed checkpatch trivialities. ] Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: remove page_fault_traceAndi Kleen2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Old debugging code that is not really needed anymore. If someone wants it it would be better replaced with a systemtap script or kprobe. This avoids a potential cache miss during page fault processing. [ mingo: arch/x86 adaptation ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * Kconfig: Missing line breaks in arch/x86_64/KconfigAdrian Knoth2007-10-19
| | | | | | | | | | | | | | | | | | | | The helptext for IA32_EMULATION in arch/x86_64/Kconfig is wider than 80 chars, thus failing to be displayed in 80x24 screens. This patch re-breaks lines. Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
| * x86: move cpufreq Kconfigs to the same directoryThomas Gleixner2007-10-19
| | | | | | | | | | | | | | | | Move the 64bit Kconfig file to arch/x86/kernel/cpu/cpufreq, so we can unify them. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * GEODE: use symbolic constant in cs5536 reboot fixupAndres Salomon2007-10-19
| | | | | | | | | | | | | | | | | | | | Simple cosmetic update for the cs5536 reboot fixup; define the MSR that's used for rebooting in geode.h, and use the define. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix CONFIG_NUMA and nosmp | maxcpus=0/1 crashIngo Molnar2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86 NUMA kernels crash in the scheduler setup code if "nosmp" or "maxcpus=0" is passed on the boot command line: | Brought up 1 CPUs | BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 | printing eip: c011f0b5 *pde = 00000000 | Oops: 0000 [#1] SMP | | Pid: 1, comm: swapper Not tainted (2.6.23 #67) | EIP: 0060:[<c011f0b5>] EFLAGS: 00010246 CPU: 0 | EIP is at sd_degenerate+0x35/0x40 the reason is sloppy spaghetti code in smpboot_32.c that resulted in a missing map_cpu_to_logical_apicid() call - which also had the side-effect of setting up the cpu_2_node[] entry for the lone CPU. That resulted in node_to_cpumask(0) resulting in 00000000 - confusing the sched-domains setup code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: use relative symlink for bzImageSam Ravnborg2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | Use relative symlinks so we can refer bzImage from different tree structures aka via NFS. Moved the creation of directory + symlink after a successful build of the boot parts. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, vsyscall: fix the oops crash with __pa_vsymbol()Siddha, Suresh B2007-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Appended patch fixes an oops while changing the vsyscall sysctl. I am sure no one tested this code before integrating into mainline :( BTW, using ioremap() in vsyscall_sysctl_change() to get the virtual address of a kernel symbol sounds like an over kill.. I wonder if we can define a simple __va_vsymbol() which will return directly the kernel direct mapping. comments in the code which says gcc has trouble with __va(__pa()) sounds bogus to me. __pa() on a vsyscall address will not work anyhow :( And also, the whole nop out syscall in vsyscall page infrastructure (vsyscall_sysctl_change()) is added to make some attacks difficult, and yet I don't see this nop out being done by default. This area requires more cleanups? Fix an oops with __pa_vsymbol(). VSYSCALL_FIRST_PAGE is a fixmap index. We want the starting virtual address of the vsyscall page and not the index. [ mingo: arch/x86 adaptation ] Reported-by: Yanmin Zhang <yanmin.zhang@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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