AgeCommit message (Collapse)AuthorFilesLines
2005-05-28[PATCH] ppc32: Fix cpufreq vs. sleep issueBenjamin Herrenschmidt3-7/+9
Recent kernels occasionally trigger a PMU timeout on some mac laptops, typically on wakeup from sleep. This seem to be caused by either a too big latency caused by the cpufreq switch on wakeup from sleep or by an interrupt beeing lost due to the reset of the interrupt controller done during wakeup. This patch makes that code more robust by stopping PMU auto poll activity around cpufreq changes on machines that use the PMU for such changes (long latency switching involving a CPU hard reset and flush of all caches) and by removing the reset of the open pic interrupt controller on wakeup (that can cause the loss of an interrupt and Darwin doesn't do it, so it must not be necessary). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] x86: fix smp_num_siblings on buggy BIOSesSiddha, Suresh B1-1/+3
This fixes 'smp_num_siblings' value on the systems with a buggy bios, which sets number of siblings to '2' even when HT is disabled. (more details are at http://bugzilla.kernel.org/show_bug.cgi?id=4359) I am planning to do more cleanup in this area (like moving smp_num_siblings to per cpuinfo) shortly. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] drop note_interrupt() for per-CPU for proper scalingJohn Hawkes1-2/+0
The "unhandled interrupts" catcher, note_interrupt(), increments a global desc->irq_count and grossly damages scaling of very large systems, e.g., >192p ia64 Altix, because of this highly contented cacheline, especially for timer interrupts. 384p is severely crippled, and 512p is unuseable. All calls to note_interrupt() can be disabled by booting with "noirqdebug", but this disables the useful interrupt checking for all interrupts. I propose eliminating note_interrupt() for all per-CPU interrupts. This was the behavior of linux-2.6.10 and earlier, but in 2.6.11 a code restructuring added a call to note_interrupt() for per-CPU interrupts. Besides, note_interrupt() is a bit racy for concurrent CPU calls anyway, as the desc->irq_count++ increment isn't atomic (which, if done, would make scaling even worse). Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] arch/i386/kernel/cpu/intel_cacheinfo.c: section fixAdrian Bunk1-1/+1
num_cache_leaves is used in __devexit cache_remove_dev() and can therefore not be __devinit. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc64 iSeries: make virtual DVD-RAMs writable againStephen Rothwell1-0/+14
It appears that another test has been added in the Uniform CDROM layer that must be passed before a DVD-RAM is considered writeable. This patch implements an emulation of the needed packet command for the viocd driver. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Fix Alsa PowerMac driver on old machinesBenjamin Herrenschmidt1-11/+19
The g5 support code broke some earlier models unfortunately as those bail out early from the detect function, before the point where I added the code to locate the PCI device for use with DMA allocations. This patch fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: small cpufreq updateBenjamin Herrenschmidt1-14/+18
This patch adds a missing attribute to pmac cpufreq so that "scaling_available_frequencies" works. It also cleans up the duplicate definitions for low and high speed constants. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: John Clemens <clemej@alum.rpi.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] x86_64: signal.c build fixOliver Korpilla1-0/+1
For unspecified reasons, arch/x86_64/kernel/signal.c apparently needs ia32_unistd.h. Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] Fix up pwc driver compilation.Dave Jones2-4/+0
The neutering of the pwc driver was incomplete. It still references some now-dead files.. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-27Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/hch/xfs-2.6Linus Torvalds6-19/+31
2005-05-27[PATCH] Note on ACPI build fixAlexander Nyberg2-2/+2
Even after the previous fix you can still set CONFIG_ACPI_BOOT indirectly even without CONFIG_ACPI by choosing CONFIG_PCI and CONFIG_PCI_MMCONFIG. That doesn't build very well either. This makes PCI_MMCONFIG depend on ACPI, fixing that hole. [ I guess in theory Kconfig could follow the whole chain of dependencies for things that get selected, but that sounds insanely complicated, so we'll just fix up these things by hand. --Linus ] Signed-off-by: Alexander Nyberg <alexn@telia.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-27[PATCH] ACPI build fixLen Brown1-3/+2
Fix 2.6.12 CONFIG_ACPI=n build regression. CONFIG_ACPI_BOOT shall be set only if CONFIG_ACPI. Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-27[PATCH] Fixup VIA IRQ quirkAlexander Nyberg1-1/+1
quirk_via_irqpic can't be __devinit for swsuspend Signed-off-by: Alexander Nyberg <alexn@telia.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-27[PATCH] VIA IRQ quirkLen Brown4-26/+28
Delete quirk_via_bridge(), restore quirk_via_irqpic() -- but now improved to be invoked upon device ENABLE, and now only for VIA devices -- not all devices behind VIA bridges. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-27[PATCH] cpuset exit NULL dereference fixPaul Jackson1-5/+19
There is a race in the kernel cpuset code, between the code to handle notify_on_release, and the code to remove a cpuset. The notify_on_release code can end up trying to access a cpuset that has been removed. In the most common case, this causes a NULL pointer dereference from the routine cpuset_path. However all manner of bad things are possible, in theory at least. The existing code decrements the cpuset use count, and if the count goes to zero, processes the notify_on_release request, if appropriate. However, once the count goes to zero, unless we are holding the global cpuset_sem semaphore, there is nothing to stop another task from immediately removing the cpuset entirely, and recycling its memory. The obvious fix would be to always hold the cpuset_sem semaphore while decrementing the use count and dealing with notify_on_release. However we don't want to force a global semaphore into the mainline task exit path, as that might create a scaling problem. The actual fix is almost as easy - since this is only an issue for cpusets using notify_on_release, which the top level big cpusets don't normally need to use, only take the cpuset_sem for cpusets using notify_on_release. This code has been run for hours without a hiccup, while running a cpuset create/destroy stress test that could crash the existing kernel in seconds. This patch applies to the current -linus git kernel. Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Simon Derr <simon.derr@bull.net> Acked-by: Dinakar Guniguntala <dino@in.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-27[PATCH] remove non-cleanroom pwc driver compressionAlan Cox10-2473/+14
The original pwc author raised some questions about the reverse engineering of the decompressor algorithms used in the pwc driver. Having done some detailed investigation it appears those concerns that clean room policy was not followed are reasonable. I've also had a friendly discussion with Philips to ask their view on this. This removes the problem items of code which reduces the pwc functionality in the kernel a little but leaves all the framework for setup that will be needed for decompressors in user space (where they eventually belong). This change set is designed to be the minimal risk change set given that 2.6.12 is hopefully close to hand, with a view to merging the much updated pwc code in 2.6.13 series kernels. Someone else can then redo the decompressors properly (clean room) in user space. Note that while its easy to say that it should have been caught earlier, but the violation was really only obvious to someone who had access to both the proprietary source and the 'GPL' source.
2005-05-27ide-cd: revert DMA mask test changeLinus Torvalds1-1/+4
The change to require the DMA length to be only word-aligned was not safe.
2005-05-27[XFS] remove an over-zealous WARN_ONChristoph Hellwig1-1/+0
2005-05-27Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitChristoph Hellwig445-9463/+29019
2005-05-26[PATCH] i386: fix prevent_tail_callRoland McGrath1-3/+1
We fixed this bug before, but it didn't take. It may have been the case that the problem was first noticed to occur in a CONFIG_REGPARM compile. But it's not regparm functions that need not to make tail calls, it's asmlinkage functions called with a user pt_regs frame on the stack supplying their arguments. prevent_tail_call probably doesn't do anything at all in regparm functions (your argument registers are going to be clobbered, period). It was a braino to conditionalize that definition in the first place. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds15-133/+12499
2005-05-26[BNX2]: New Broadcom gigabit network driver.Michael Chan7-0/+12370
A new driver bnx2 for Broadcom bcm5706 is available. The patch also includes new 1000BASE-X advertisement bit definitions in mii.h Thanks to David Miller and Jeff Garzik for reviewing and their valuable feedback. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26[TOKENRING]: net/802/tr.c: s/struct rif_cache_s/struct rif_cache/Alexey Dobriyan1-11/+11
"_s" suffix is certainly of hungarian origin. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26[TOKENRING]: be'ify trh_hdr, trllc, rif_cache_sAlexey Dobriyan2-5/+5
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26From: Kazunori Miyazawa <kazunori@miyazawa.org>Hideaki YOSHIFUJI3-2/+8
[XFRM] Call dst_check() with appropriate cookie This fixes infinite loop issue with IPv6 tunnel mode. Signed-off-by: Kazunori Miyazawa <kazunori@miyazawa.org> Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26[BONDING]: bonding using arp_ip_target may stay down with active path Jay Vosburgh1-1/+1
Correcting the list traversal makes the problem go away. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26[PKT_SCHED] netem: allow random reordering (with fix)Stephen Hemminger2-13/+50
Here is a fixed up version of the reorder feature of netem. It is the same as the earlier patch plus with the bugfix from Julio merged in. Has expected backwards compatibility behaviour. Go ahead and merge this one, the TCP strangeness I was seeing was due to the reordering bug, and previous version of TSO patch. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26[PKT_SCHED] netem: use only inner qdisc -- no private skbuff queueStephen Hemminger1-88/+36
Netem works better if there if packets are just queued in the inner discipline rather than having a separate delayed queue. Change to use the dequeue/requeue to peek like TBF does. By doing this potential qlen problems with the old method are avoided. The problems happened when the netem_run that moved packets from the inner discipline to the nested discipline failed (because inner queue was full). This happened in dequeue, so the effective qlen of the netem would be decreased (because of the drop), but there was no way to keep the outer qdisc (caller of netem dequeue) in sync. The problem window is still there since this patch doesn't address the issue of requeue failing in netem_dequeue, but that shouldn't happen since the sequence dequeue/requeue should always work. Long term correct fix is to implement qdisc->peek in all the qdisc's to allow for this (needed by several other qdisc's as well). Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26[PKT_SCHED]: netem: reinsert for duplicationStephen Hemminger1-24/+29
Handle duplication of packets in netem by re-inserting at top of qdisc tree. This avoid problems with qlen accounting with nested qdisc. This recursion requires no additional locking but will potentially increase stack depth. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-26Automatic merge of 'for-linus' branch fromLinus Torvalds23-1019/+1222
2005-05-26Merge of 'misc-fixes' branch fromLinus Torvalds1-6/+7
2005-05-26[PATCH] timeout at boottime with NEC3500A (and possibly others) when inserted a CD in itMarcello Maggioni1-2/+2
From: Marcello Maggioni <hayarms@gmail.com> Problem: Some drives (NEC 3500, TDK 1616N, Mad-dog MD-16XDVD9, RICOH MP5163DA, Memorex DVD9 drive and IO-DATA's too for sure), if a CD/DVD is inserted into the tray when the system is booted and if before the OS bootup the BIOS checked for the presence of a bootable CD/DVD into the drive, during the IDE probe phase the drive may result busy and remain so for the next 25/30 seconds . This cause the drive to be skipped during the booting phase and not begin usable until the next reboot (if the reboot goes well and the drive doesn't timeout again). Solution: Rising the timeout time from 10 seconds to 35 seconds (during these 35 seconds every drive should wake up for sure according to the tests I've done). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-05-26[PATCH] ide-scsi: kmap scatter/gather before doing PIO Stuart Hayes1-4/+24
From: Stuart Hayes <Stuart_Hayes@dell.com> The system can panic with a null pointer dereference using ide-scsi if PIO is being done on scatter gather pages that are in high memory, because page_address() returns 0. We are actually seeing this using a tape drive. This patch will kmap_atomic() the pages before performing PIO. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-05-26[PATCH] convert IDE device drivers to driver-modelBartlomiej Zolnierkiewicz9-449/+216
* add ide_bus_match() and export ide_bus_type * split ide_remove_driver_from_hwgroup() out of ide_unregister() * move device cleanup from ide_unregister() to drive_release_dev() * convert ide_driver_t->name to driver->name * convert ide_driver_t->{attach,cleanup} to driver->{probe,remove} * remove ide_driver_t->busy as ide_bus_type->subsys.rwsem protects against concurrent ->{probe,remove} calls * make ide_{un}register_driver() void as it cannot fail now * use driver_{un}register() directly, remove ide_{un}register_driver() * use device_register() instead of ata_attach(), remove ata_attach() * add proc_print_driver() and ide_drivers_show(), remove ide_drivers_op * fix ide_replace_subdriver() and move it to ide-proc.c * remove ide_driver_t->drives, ide_drives and drives_lock * remove ide_driver_t->drivers, drivers and drivers_lock * remove ide_drive_t->driver and DRIVER() macro Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-05-26[PATCH] libata: Fix zero sg_dma_len() on 64-bit platformAlbert Lee1-6/+7
When testing ATAPI PIO data transfer on the ppc64 platform, __atapi_pio_bytes() got zero when sg_dma_len() is used. I checked the <asm-ppc64/scatterlish.h>, the struct scatterlist is defined as: struct scatterlist { struct page *page; unsigned int offset; unsigned int length; /* For TCE support */ u32 dma_address; u32 dma_length; }; #define sg_dma_address(sg) ((sg)->dma_address) #define sg_dma_len(sg) ((sg)->dma_length) So, if the scatterlist is not DMA mapped, sg_dma_len() will return zero on ppc64. The same problem should occur on the x86-64 platform. On the i386 platform, sg_dma_len() returns sg->length, that's why the problem does not occur on an i386. Changes: - Use sg->length if the scatterlist is not DMA mapped (yet). Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
2005-05-26Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git branch HEAD6-0/+39
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch tlan1-0/+12
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch sis9002-3/+50
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch veth1-9/+23
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch qeth14-901/+914
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch ns838201-40/+29
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch natsemi1-3/+3
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch forcedeth1-17/+86
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch airo1-46/+104
2005-05-25Automatic merge of /spare/repo/netdev-2.6 branch atmel1-0/+1
2005-05-25Merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds4-0/+36
2005-05-25Merge of 'new-ids' branch fromLinus Torvalds2-0/+3
2005-05-25[PATCH] sata_promise: add PCI ID for FastTrak TX2200 2-portsFrancisco Javier1-0/+2
2005-05-25[PATCH] sata_sil: new ID 1002:437A for ATI IXP400NAKAMURA Kenta1-0/+1
2005-05-25[PATCH] therm_adt746x: show correct sensor locationsColin Leroy1-42/+77
This patch shows the correct locations of the heat sensors present in iBook and PowerBooks G4, instead of displaying them as being on CPU and GPU (which is not always the case). Signed-off-by: Colin Leroy <colin@colino.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>