- 28 Feb, 2006 1 commit
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Brian King authored
Remove a hack in the sg driver that alters the total buffer length for SG_IO commands to ensure buffers are not odd byte lengths. This breaks on the ipr driver since it requires the request_bufflen to equal the length specified in the cdb. The block layer SG_IO code does not appear to have this hack. Signed-off-by:
Douglas Gilbert <dougg@torque.net> Signed-off-by:
Brian King <brking@us.ibm.com> Signed-off-by:
James Bottomley <James.Bottomley@SteelEye.com>
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- 27 Feb, 2006 7 commits
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
Commit 9ec4b1f3 made kprobes not compile without module support, so just make that clear in the Kconfig file. Also, since it's marked EXPERIMENTAL, make that dependency explicit too. Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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David S. Miller authored
The change to kernel/sched.c's init code to use for_each_cpu() requires that the cpu_possible_map be setup much earlier. Set it up via setup_arch(), constrained to NR_CPUS, and later constrain it to max_cpus in smp_prepare_cpus(). This fixes SMP booting on sparc64. Signed-off-by:David S. Miller <davem@davemloft.net>
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David S. Miller authored
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James Bottomley authored
Commit 9c869eda broke voyager again rather subtly because it already had its own topology exporting functions, so now each CPU gets registered twice. I think we can actually use the generic ones, so I don't propose reverting it. The attached should eliminate the voyager topology functions in favour of the generic ones. I also added a define to ensure voyager is never hotplug CPU (we don't have the support in the SMP harness). Signed-off-by:
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Brian Magnuson authored
The commit e2c03888 added setup_additional_cpus to setup.c but this is only defined if CONFIG_HOTPLUG_CPU is set. This patch changes the #ifdef to reflect that. Signed-off-by:
Brian Magnuson <magnuson@rcn.com> Signed-off-by:
Andi Kleen <ak@suse.de> Signed-off-by:
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- 26 Feb, 2006 14 commits
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Andi Kleen authored
RTC_IRQP_SET/RTC_EPOCH_SET don't take a pointer to an argument, but the argument itself. This actually simplifies the code and makes it work. Signed-off-by:
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Andi Kleen authored
The previous experiment for using apicmaintimer on ATI systems didn't work out very well. In particular laptops with C2/C3 support often don't let it tick during idle, which makes it useless. There were also some other bugs that made the apicmaintimer often not used at all. I tried some other experiments - running timer over RTC and some other things but they didn't really work well neither. I rechecked the specs now and it turns out this simple change is actually enough to avoid the double ticks on the ATI systems. We just turn off IRQ 0 in the 8254 and only route it directly using the IO-APIC. I tested it on a few ATI systems and it worked there. In fact it worked on all chipsets (NVidia, Intel, AMD, ATI) I tried it on. According to the ACPI spec routing should always work through the IO-APIC so I think it's the correct thing to do anyways (and most of the old gunk in check_timer should be thrown away for x86-64). But for 2.6.16 it's best to do a fairly minimal change: - Use the known to be working everywhere-but-ATI IRQ0 both over 8254 and IO-APIC setup everywhere - Except on ATI disable IRQ0 in the 8254 - Remove the code to select apicmaintimer on ATI chipsets - Add some boot options to allow to override this (just paranoia) In 2.6.17 I hope to switch the default over to this for everybody. Signed-off-by:
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Andi Kleen authored
SMP time selection originally ran after all CPUs were brought up because it needed to know the number of CPUs to decide if it needs an MP safe timer or not. This is not needed anymore because we know present CPUs early. This fixes a couple of problems: - apicmaintimer didn't always work because it relied on state that was set up time_init_gtod too late. - The output for the used timer in early kernel log was misleading because time_init_gtod could actually change it later. Now always print the final timer choice Signed-off-by:
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Andi Kleen authored
It didn't set up the CPU possible map early enough, so the option didn't actually work. Noticed by Heiko Carstens Signed-off-by:
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Andi Kleen authored
ACPI is initialized very early on x86-64, before the DMI code is initialized. This means it would often discover a 0 year and then turn off ACPI because it thought the BIOS was too old. Some systems don't boot without ACPI so this was a problem. I have a full fix by adding new very early DMI detection, but it needs more testing before it can be merged. For 2.6.16 let's just turn the check off. It never made much sense anyways because there are no x86-64 systems older than 2002 or so and they generally all have working ACPI. Cc: len.brown@intel.com Signed-off-by:
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Chris McDermott authored
[description from AK] Old check for the IO-APIC watchdog during the timer check was wrong - it obviously should only drop into this if the IO-APIC watchdog is used. Signed-off-by:
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Andi Kleen authored
This makes x86-64 use the common X86_PM_TIMER Kconfig entry in drivers/acpi And since PM timer is needed for correct timing on a lot of systems now (e.g. AMD dual cores) and we often get bug reports from people who forgot to set it make it depend on CONFIG_EMBEDDED. x86-64 had this change before and it's a good thing. I also fixed the description slightly to make this more clear. Cc: len.brown@intel.com Signed-off-by:
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Andreas Deresch authored
[description from AK] This fixes booting in APIC mode on some ACER laptops. x86-64 did a similar change some time ago. See http://bugzilla.kernel.org/show_bug.cgi?id=4700 for details Signed-off-by:
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Andi Kleen authored
Big Unisys systems have multiple clusters too, but they have an synchronized TSC. I'm using the SMBIOS to check for vendor == IBM. Cc: Chris McDermott <lcm@us.ibm.com> Cc: "Protasevich, Natalie" <Natalie.Protasevich@unisys.com> Signed-off-by:
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Suresh Siddha authored
Fixes a local DOS on Intel systems that lead to an endless recursive fault. AMD machines don't seem to be affected. Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by:
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Jan Beulich authored
The value, while currently unused in the native kernel, was off by one. Signed-Off-By:
Jan Beulich <jbeulich@novell.com> Signed-off-by:
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Jon Mason authored
In previous versions of pci-gart.c, no_iommu was used to determine if IOMMU was disabled in the GART DMA mapping functions. This changed in 2.6.16 and now gart_xxx() functions are only called if gart is enabled. Therefore, uses of no_iommu in the GART code are no longer necessary and can be removed. Also, it removes double deceleration of no_iommu and force_iommu in pci.h and proto.h, by removing the deceleration in pci.h. Lastly, end_pfn off by one error. Tested (along with patch 1/2) on dual opteron with gart enabled, iommu=soft, and iommu=off. Signed-off-by:
Jon Mason <jdmason@us.ibm.com> Signed-off-by:
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Marc Zyngier authored
As the (probably) last user of a Specialix SI board, I noticed that recent kernels would fail to probe the sucker. Quick investigation indicate a few missing braces... I left the double probing in place, as it looks like it's been here forever. Signed-off-by:
Marc Zyngier <maz@misterjones.org> Signed-off-by:
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Al Viro authored
There's a problem in sd where we blindly believe the length of the headers and block descriptors. Some devices return insane values for these and cause our length to end up greater than the actual buffer size, so check to make sure. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Also removed the buffer size magic number (512) and added DPOFUA of zero to the defaults Signed-off-by:
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- 25 Feb, 2006 3 commits
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Dave Jones authored
Commit 9c869eda moved the i386 topology.c file. That change broke x86-64 compiles, as it uses the same file. Signed-off-by:
Dave Jones <davej@redhat.com> Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
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- 24 Feb, 2006 15 commits
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Kumar Gala authored
mem= command line option was being ignored in arch/powerpc if we were not a CONFIG_MULTIPLATFORM (which is handled via prom_init stub). The initial command line extraction and parsing needed to be moved earlier in the boot process and have code to actual parse mem= and do something about it. Also, fixed a compile warning in the file. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Acked-by:
Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by:
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Linus Torvalds authored
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Zachary Amsden authored
When compiling a non-default subarch, topology.c is missing from the kernel build. This causes builds with CONFIG_HOTPLUG_CPU to fail. In addition, on Intel processors with cpuid level > 4, it causes intel_cacheinfo.c to reference uninitialized data that should have been set up by the initcall in topology.c which calls register_cpu. This causes a kernel panic on boot on newer Intel processors. Moving topology.c to arch/i386/kernel fixes both of these problems. Thanks to Dan Hecht for finding and fixing this problem. Signed-off-by:
Zachary Amsden <zach@vmware.com> Signed-off-by:
Dan Hecht <dhect@vmware.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Hugh Dickins authored
akpm points out that switching to a non-NUMA kernel could be irritating if mounting tmpfs fails on an mpol option: tmpfs.txt recommend remount. Signed-off-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Jun'ichi Nomura authored
Minor number should be freed after del_gendisk(). Otherwise, there could be a window where 2 registered gendisk has same minor number. Signed-off-by:
Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Acked-by:
Alasdair G Kergon <agk@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
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Jun'ichi Nomura authored
Need to unfreeze and release bdev otherwise the bdev inode with inconsistent state is reused later and cause problem. Signed-off-by:
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Andrew Morton authored
Phil Marek <philipp.marek@bmlv.gv.at> points out that ramfs forgets to update a directory's mtime and ctime when it is modified. Cc: <stable@kernel.org> Signed-off-by:
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Christoph Lameter authored
- PF_SWAPWRITE needs to be set for RECLAIM_SWAP to be able to write out pages to swap. Currently RECLAIM_SWAP may not do that. - remove setting nr_reclaimed pages after slab reclaim since the slab shrinking code does not use that and the nr_reclaimed pages is just right for the intended follow up action. Signed-off-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
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Ulrich Drepper authored
I'm currently at the POSIX meeting and one thing covered was the incompatibility of Linux's link() with the POSIX definition. The name. Linux does not follow symlinks, POSIX requires it does. Even if somebody thinks this is a good default behavior we cannot change this because it would break the ABI. But the fact remains that some application might want this behavior. We have one chance to help implementing this without breaking the behavior. For this we could use the new linkat interface which would need a new flags parameter. If the new parameter is AT_SYMLINK_FOLLOW the new behavior could be invoked. I do not want to introduce such a patch now. But we could add the parameter now, just don't use it. The patch below would do this. Can we get this late patch applied before the release more or less fixes the syscall API? Signed-off-by:
Ulrich Drepper <drepper@redhat.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Antonino A. Daplas authored
The setcolreg function will attempt to write 24 color entries to the pseudo_pallette. However, the pseudo_palette has only space for 16 entries. Thanks to Atsushi Nemoto for reporting this bug. Signed-off-by:
Antonino Daplas <adaplas@pol.net> Signed-off-by:
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Freddy Spierenburg authored
Replaced the no longer existing io_remap_page_range() routine with the io_remap_pfn_range() routine. Did not have a chance yet to test the functionality of the driver, but at least the kernel compiles cleanly again. Signed-off-by:
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Martin Michlmayr authored
Allocating more than 4 MB memory for the GBE (SGI O2) framebuffer completely breakfs gbefb support at the moment. According to comments on #mipslinux, more than 4 MB has never worked correctly in Linux. Therefore, the default should be 4 MB. Signed-off-by:
Martin Michlmayr <tbm@cyrius.com> Signed-off-by:
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Kaj-Michael Lang authored
The gbefb driver does not update the framebuffer layers visual setting when depth is changed with fbset, resulting in strange colors (very dark blue in 16-bit, almost black in 24-bit). Signed-off-by:
Kaj-Michael Lang <milang@tal.org> Signed-off-by:
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James Bottomley authored
Recent GDT changes broke the SMP boot sequence if the booting CPU is numbered anything other than zero. There's also a subtle source of error in that the boot time CPU now uses cpu_gdt_table (which is actually the GDT for booting CPUs in head.S). This patch fixes both problems by making GDT descriptors themselves allocated from a per_cpu area and switching to them in cpu_init(), which now means that cpu_gdt_table is exclusively used for booting CPUs again. Signed-off-by:
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