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2007-01-05[PATCH] KVM: MMU: Use the guest pdptrs instead of mapping cr3 in pae modeAvi Kivity
This lets us not write protect a partial page, and is anyway what a real processor does. Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: MU: Special treatment for shadow pae root pagesAvi Kivity
Since we're not going to cache the pae-mode shadow root pages, allocate a single pae shadow that will hold the four lower-level pages, which will act as roots. Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: MMU: Fold fetch_guest() into init_walker()Avi Kivity
It is never necessary to fetch a guest entry from an intermediate page table level (except for large pages), so avoid some confusion by always descending into the lowest possible level. Rename init_walker() to walk_addr() as it is no longer restricted to initialization. Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: MMU: Load the pae pdptrs on cr3 change like the processor doesAvi Kivity
In pae mode, a load of cr3 loads the four third-level page table entries in addition to cr3 itself. Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: MMU: Teach the page table walker to track guest page table gfnsAvi Kivity
Saving the table gfns removes the need to walk the guest and host page tables in lockstep. Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: MMU: Implement simple reverse mappingAvi Kivity
Keep in each host page frame's page->private a pointer to the shadow pte which maps it. If there are multiple shadow ptes mapping the page, set bit 0 of page->private, and use the rest as a pointer to a linked list of all such mappings. Reverse mappings are needed because we when we cache shadow page tables, we must protect the guest page tables from being modified by the guest, as that would invalidate the cached ptes. Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: Prevent stale bits in cr0 and cr4Avi Kivity
Hardware virtualization implementations allow the guests to freely change some of the bits in cr0 and cr4, but trap when changing the other bits. This is useful to avoid excessive exits due to changing, for example, the ts flag. It also means the kvm's copy of cr0 and cr4 may be stale with respect to these bits. most of the time this doesn't matter as these bits are not very interesting. Other times, however (for example when returning cr0 to userspace), they are, so get the fresh contents of these bits from the guest by means of a new arch operation. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] Update the rtc-rs5c372 driverDavid Brownell
Bugfixes: - Handle RTCs which are configured to use 12-hour mode. - Never report bogus/un-initialized times. - Displaying "raw trim" requires not masking it first! - Fix the sysfs and procfs display of crystal and trim data. Features: - Handle other RTCs in this family, notably rv5c386/rv5c387. - Declare the other registers. - Provide alarm get/set functionality. - Handle AIE and UIE; but no IRQ handling yet. Cleanup: - Shrink object by not including needless sysfs or procfs support - We don't need no steenkin' forward declarations. (Except one.) Until the I2C framework merges "new style" driver support, matching the driver model better, using rv5c chips or alarm IRQs requires a separate board-specific patch. (And an IRQ handler, handing off labor through a work_struct...) This uses the "method 3" register reads, but notes that it's done to work around an evident i2c adapter driver bug. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] ip2 warning fixAndrew Morton
Make this: drivers/char/ip2/ip2main.c: In function 'ip2_loadmain': drivers/char/ip2/ip2main.c:654: warning: control may reach end of non-void function 'iiSetAddress' being inlined drivers/char/ip2/ip2main.c:808: warning: control may reach end of non-void function 'iiInitialize' being inlined go away. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] atiixp: Old drivers/ide layer driver for the ATIIXP hang fixAlan
When the old IDE layer calls into methods in the driver during error handling it is essentially random whether ide_lock is already held. This causes a deadlock in the atiixp driver which also uses ide_lock internally for locking. Switch to a private lock instead. [akpm@osl.org: cleanup] Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] Fix BUG at drivers/scsi/scsi_lib.c:1118 caused by "pktsetup dvd ↵Christoph Hellwig
/dev/sr0" Fix http://bugzilla.kernel.org/show_bug.cgi?id=7667 This is because the packet driver tries to send down read/write BLOCK_PC commands that don't use a bio and do not use sg lists. The right fix is to replace all the packet_command stuff in the packet driver by scsi_execute() which needs to be lifted from scsi code to the block code for that. Fix the bug for now. It's not the full way to a generic execute block pc infrastcuture but fixes the bug for the time being. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Peter Osterlund <petero2@telia.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] rtc-at91rm9200 build fixDavid Brownell
The at91rm9200 RTC driver needs some assistance to build, because of recent header file rearrangement. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Cc: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: Improve interrupt responseDor Laor
The current interrupt injection mechanism might delay an interrupt under the following circumstances: - if injection fails because the guest is not interruptible (rflags.IF clear, or after a 'mov ss' or 'sti' instruction). Userspace can check rflags, but the other cases or not testable under the current API. - if injection fails because of a fault during delivery. This probably never happens under normal guests. - if injection fails due to a physical interrupt causing a vmexit so that it can be handled by the host. In all cases the guest proceeds without processing the interrupt, reducing the interactive feel and interrupt throughput of the guest. This patch fixes the situation by allowing userspace to request an exit when the 'interrupt window' opens, so that it can re-inject the interrupt at the right time. Guest interactivity is very visibly improved. Signed-off-by: Dor Laor <dor.laor@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: Recover after an arch module load failureYoshimi Ichiyanagi
If we load the wrong arch module, it leaves behind kvm_arch_ops set, which prevents loading of the correct arch module later. Fix be not setting kvm_arch_ops until we're sure it's good. Signed-off-by: Yoshimi Ichiyanagi <ichiyanagi.yoshimi@lab.ntt.co.jp> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: Use raw_smp_processor_id() instead of smp_processor_id() where ↵Ingo Molnar
applicable Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] KVM: Fix GFP_KERNEL alloc in atomic section bugIngo Molnar
KVM does kmalloc() in an atomic section while having preemption disabled via vcpu_load(). Fix this by moving the ->*_msr setup from the vcpu_setup method to the vcpu_create method. (This is also a small speedup for setting up a vcpu, which can in theory be more frequent than the vcpu_create method). Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] via82cxxx: fix cable detectionBartlomiej Zolnierkiewicz
This patch fixes 2.6.15 regression, is straightforward and tested. Cable detection got broken probably while converting the driver to support multiple controllers. Cable detection is done by examining how BIOS configured the attached devices. The current code is broken in that it examines the status *after* modifying Clk66 configuration ending up detecting 40c cables as 80c. This patch fixes it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] PCI: prevent down_read when pci_devices is emptyArd van Breemen
The pci_find_subsys gets called very early by obsolete ide setup parameters. This is a bogus call since pci is not initialized yet, so the list is empty. But in the mean time, interrupts get enabled by down_read. This can result in a kernel panic when the irq controller gets initialized. This patch checks if the device list is empty before taking the semaphore, and hence will not enable irq's. Furthermore it will inform that it is called while pci_devices is empty as a reminder that the ide code needs to be fixed. The pci_get_subsys can get called in the same manner, and as such is patched in the same manner. [akpm@osdl.org: cleanups] Signed-off-by: Ard van Breemen <ard@telegraafnet.nl> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] Fix leds-s3c24xx hardware.h referenceRichard Purdie
Russell King recently reminded us that one shouldn't use asm/arch/hardware.h but one should use asm/hardware.h (http://lkml.org/lkml/2006/12/23/26). Unfortunately, the leds-s3c24xx driver is using the wrong header. This patch is fixing that. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05[PATCH] Fix implicit declarations in via-pmuDave Jones
drivers/macintosh/via-pmu.c: In function 'pmac_suspend_devices': drivers/macintosh/via-pmu.c:2014: error: implicit declaration of function 'pm_prepare_console' drivers/macintosh/via-pmu.c: In function 'pmac_wakeup_devices': drivers/macintosh/via-pmu.c:2139: error: implicit declaration of function 'pm_restore_console' Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-04Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IPV4/IPV6]: Fix inet{,6} device initialization order. [TCP]: Use old definition of before [NETFILTER]: ebtables: don't compute gap before checking struct type [NETFILTER]: nf_nat: fix MASQUERADE crash on device down [NETFILTER]: New connection tracking is not EXPERIMENTAL anymore [NETFILTER]: Fix routing of REJECT target generated packets in output chain [NETFILTER]: compat offsets size change [SUNGEM]: PHY updates & pause fixes (#2) [X25]: proper prototype for x25_init_timers() [AF_NETLINK]: module_put cleanup [XFRM_USER]: avoid pointless void ** casts [NETFILTER] xt_hashlimit.c: fix typo [NET] drivers/net/loopback.c: convert to module_init() [PKTGEN]: Convert to kthread API. [NET]: ifb double-counts packets
2007-01-04Merge branch 'release' of ↵Linus Torvalds
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: ACPI: asus_acpi: new MAINTAINER ACPI: fix section mis-match build warning ACPI: increase ACPI_MAX_REFERENCE_COUNT for larger systems ACPI: EC: move verbose printk to debug build only backlight: fix backlight_device_register compile failures
2007-01-04HID: fix help texts in KconfigJiri Kosina
The help text for CONFIG_HID might imply for someone that it's necessary to enable it for any keyboard or mouse attached to the system. This is obviously not correct, so fix it to avoid confusing the users. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-01-04Fix some ARM builds due to HID brokennessRussell King
HID it defaults to 'y'. When you have input deselected, this causes the kernel to fail to link. Fix it by making it depend on INPUT. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-01-03[SUNGEM]: PHY updates & pause fixes (#2)Benjamin Herrenschmidt
This patch adds support for a few more PHYs used by Apple and fixes advertising and detecting of Pause (we were missing setting the bit in MII_ADVERTISE and weren't testing in LPA for all PHYs). Note that I currently only advertise pause, not asymetric pause. I don't know for sure the details there, I suppose I should read a bit more 802.3 references, and I don't now what sungem is capable of, but I noticed the PCS code (originated from you) does the same. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-03[NET] drivers/net/loopback.c: convert to module_init()Adrian Bunk
This patch converts drivers/net/loopback.c to using module_init(). Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-03[NET]: ifb double-counts packetsdean gaudet
Signed-off-by: dean gaudet <dean@arctic.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-03Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgartLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart: [AGPGART] drivers/char/agp/sgi-agp.c: check kmalloc() return value [AGPGART] Fix PCI-posting flush typo. [AGPGART] fix detection of aperture size versus GTT size on G965 [AGPGART] Remove unnecessary flushes when inserting and removing pages. [AGPGART] K8M890 support for amd-k8.
2007-01-03Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] longhaul: Kill off warnings introduced by recent changes. [CPUFREQ] Uninitialized use of cmd.val in arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c:acpi_cpufreq_target() [CPUFREQ] Longhaul - Always guess FSB [CPUFREQ] Longhaul - Fix up powersaver assumptions. [CPUFREQ] longhaul: Fix up unreachable code. [CPUFREQ] speedstep-centrino: missing space and bracket [CPUFREQ] Bug fix for acpi-cpufreq and cpufreq_stats oops on frequency change notification [CPUFREQ] select consistently
2007-01-03[PATCH] cdrom: set default timeout to 7 secondsJens Axboe
It's a known fact that Windows times out commands after 7 seconds, so drives generally try and respond if they can before that happens. We default to 5 seconds, which sometimes is a bit too short. Jeremy Higdon reported here: http://lkml.org/lkml/2007/1/1/145 that his drive takes longer than 5 seconds for a "read track information" command, later confirming that it is about 6.7 seconds. So just do the sane thing and change the default command timeout to 7 seconds to avoid other surprises. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-02[AGPGART] drivers/char/agp/sgi-agp.c: check kmalloc() return valueakpm@osdl.org
drivers/char/agp/sgi-agp.c: check kmalloc() return value Signed-off-by: Amit Choudhary <amit2030@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-02[PATCH] libata: fix combined modeAlan
This is a slight variant on the patch I posted December 16th to fix libata combined mode handling. The only real change is that we now correctly also reserve BAR1,2,4. That is basically a neatness issue. Jeff was unhappy about two things 1. That it didn't work in the case of one channel native one channel legacy. This is a silly complaint because the SFF layer in libata doesn't handle this case yet anyway. 2. The case where combined mode is in use and IDE=n. In this case the libata quirk code reserves the resources in question correctly already. Once the combined mode stuff is redone properly (2.6.21) then the entire mess turns into a single pci_request_regions() for all cases and all the ugly resource hackery goes away. I'm sending this now rather than after running full test suites so that it can get the maximal testing in a short time. I'll be running tests on this after lunch. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jeff Garzik <jgarzik@pobox.com> Acked-by: Alessandro Suardi <alessandro.suardi@gmail.com> Acked-by: Theodore Tso <tytso@mit.edu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-02ACPI: EC: move verbose printk to debug build onlyGuillaume Chazarain
The recent EC cleanup left a printk enabled on handler evaluation resulting in a bunch of messages on normal operation, like so: ACPI: EC: evaluating _Q60 Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-02backlight: fix backlight_device_register compile failuresRichard Purdie
Fix breakage from commit 519ab5f2be65b72cf12ae99c89752bbe79b44df6 which didn't update all references to backlight_device_register causing compile failures. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-31[SPARC64]: Fix of_iounmap() region release.David S. Miller
We need to pass in the resource otherwise we cannot release the region properly. We must know whether it is an I/O or MEM resource. Spotted by Eric Brower. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-30Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: sbp2: fix bogus dma mapping ieee1394: sbp2: pass REQUEST_SENSE through to the target
2006-12-30[PATCH] kvm: fix GFP_KERNEL allocation in atomic section in ↵Ingo Molnar
kvm_dev_ioctl_create_vcpu() fix an GFP_KERNEL allocation in atomic section: kvm_dev_ioctl_create_vcpu() called kvm_mmu_init(), which calls alloc_pages(), while holding the vcpu. The fix is to set up the MMU state in two phases: kvm_mmu_create() and kvm_mmu_setup(). (NOTE: free_vcpus does an kvm_mmu_destroy() call so there's no need for any extra teardown branch on allocation/init failure here.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Fix oops on oomAvi Kivity
__free_page() doesn't like a NULL argument, so check before calling it. A NULL can only happen if memory is exhausted during allocation of a memory slot. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Rename some msrsNguyen Anh Quynh
No need to append _MSR to msr names, a prefix should suffice. Signed-off-by: Nguyen Anh Quynh <aquynh@gmail.com> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: More msr miseryAvi Kivity
These msrs are referenced by benchmarking software when pretending to be an Intel cpu. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Move common msr handling to arch independent codeAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Implement a few system configuration msrsAvi Kivity
Resolves sourceforge bug 1622229 (guest crashes running benchmark software). Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Initialize kvm_arch_ops on unloadYoshimi Ichiyanagi
The latest version of kvm doesn't initialize kvm_arch_ops in kvm_init(), which causes an error with the following sequence. 1. Load the supported arch's module. 2. Load the unsupported arch's module.$B!!(B(loading error) 3. Unload the unsupported arch's module. You'll get the following error message after step 3. "BUG: unable to handle to handle kernel paging request at virtual address xxxxxxxx" The problem here is that the unsupported arch's module overwrites kvm_arch_ops of the supported arch's module at step 2. This patch initializes kvm_arch_ops upon loading architecture specific kvm module, and prevents overwriting kvm_arch_ops when kvm_arch_ops is already set correctly. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Simplify is_long_mode()Avi Kivity
Instead of doing tricky stuff with the arch dependent virtualization registers, take a peek at the guest's efer. This simlifies some code, and fixes some confusion in the mmu branch. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] KVM: Use boot_cpu_data instead of current_cpu_dataAvi Kivity
current_cpu_data invokes smp_processor_id(), which is inadvisable when preemption is enabled. Switch to boot_cpu_data instead. Resolves sourceforge bug 1621401. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] PIIX/SLC90E66: PIO mode fallback fixSergei Shtylyov
The fallback to PIO mode in the hwif->dma_check() handler doesn't work in the Intel PIIX and SMsC SLC90E66 IDE drivers because: - config_drive_for_dma() calls the hwif->speedproc() handler with a wrong mode number (unbiased by XFER_PIO_0) in case of the PIO fallback; - hwif->tuneproc() handler doesn't really set the drive's own speed (this is not fixed as yet). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] PIIX: remove check for broken MW DMA mode 0Sergei Shtylyov
There's no need to check in piix_config_drive_for_dma() for broken MW DMA mode 0 as this mode is not supported by the driver (it sets hwif->mwdma_mask to 0x6), and hence can't be selected by ide_dma_speed(). (Alan sayeth "Probably right but if not you've got a subtle corruptor. Should at least stick a BUG_ON mode 0 setting right close when the mode is set.") Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] spi_s3c24xx_gpio: use right headerArnaud Patard (Rtp
Russel King recently reminded us that one shouldn't use asm/arch/hardware.h but one should use asm/hardware.h. Unfortunately, the spi_s3c24xx_gpio driver is using the wrong header. This patch is fixing that. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] SPI/MTD: mtd_dataflash oops preventionDavid Brownell
Return a fault code if the Dataflash driver runs into a "no device present" error when the MISO line has a pulldown (it currently expects a pullup), so that rmmod won't oops. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30[PATCH] m25p80 build fixes (with MTD debug)David Brownell
Fix build issues that show up with the m25p80 SPI flash driver when building with MTD debug enabled. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>