- 31 Jul, 2006 16 commits
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Masami Hiramatsu authored
The kprobe-booster's safety check against preemption does not work well now, because the preemption count has been modified by read_rcu_lock() in atomic_notifier_call_chain() before we check it. So, I'd like to prevent boosting kprobe temporarily if the kernel is preemptable. Now we are searching for the good solution. Signed-off-by:
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Eric W. Biederman authored
One of my original comments in machine_kexec was unclear and this should fix it. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Cc: Andi Kleen <ak@muc.de> Acked-by:
Horms <horms@verge.net.au> Signed-off-by:
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Andrew Morton authored
- Move the tsc synchronisation variables into a struct, mark it __initdata - local `realdelta' wants to be 64-bit - Print the skew for negative skews, as well as for positive ones - remove dead code Cc: john stultz <johnstul@us.ibm.com> Signed-off-by:
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Venkat Yekkirala authored
Initializes newcontext sooner to allow for its destruction in all cases. Signed-off-by:
Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by:
Stephen Smalley <sds@tycho.nsa.gov> Acked-by:
James Morris <jmorris@namei.org> Signed-off-by:
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Darrel Goeddel authored
This patch fixes a memory leak when a policydb structure is destroyed. Signed-off-by:
Darrel Goeddel <dgoeddel@trustedcs.com> Signed-off-by:
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NeilBrown authored
A recent commit (7fc90ec9) moved the call to nfsd_setuser out of the 'find a dentry for a filehandle' branch of fh_verify so that it would always be called. This had the unfortunately side-effect of moving *after* the call to decode_fh, so the prober fsuid was not set when nfsd_acceptable was called, the 'permission' check did the wrong thing. This patch moves the nfsd_setuser call back where it was, and add as call in the other branch of the if. Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by:
Neil Brown <neilb@suse.de> Signed-off-by:
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Andrew Morton authored
mce_disabled cannot be __initdata - we access it during APM resume. Signed-off-by:
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Peter Korsgaard authored
The recent zlib update (commit 4f3865fb) broke ppc32 zImage decompression as it tries to decompress to address zero and the updated zlib_inflate checks that strm->next_out isn't a null pointer. This little patch fixes it. [rpurdie@rpsys.net: add comment] Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Acked-by:
Tom Rini <trini@kernel.crashing.org> Signed-off-by:
Richard Purdie <rpurdie@rpsys.net> Signed-off-by:
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Shailabh Nagar authored
Enable delay accounting by default so that feature gets coverage testing without requiring special measures. Earlier, it was off by default and had to be enabled via a boot time param. This patch reverses the default behaviour to improve coverage testing. It can be removed late in the kernel development cycle if its believed users shouldn't have to incur any cost if they don't want delay accounting. Or it can be retained forever if the utility of the stats is deemed common enough to warrant keeping the feature on. Signed-off-by:
Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by:
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Shailabh Nagar authored
Add a missing freeing of skb in the case there are no listeners at all. Also remove the returning of error values by the function as it is unused by the sole caller. Signed-off-by:
Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by:
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Shailabh Nagar authored
Complete the separation of delay accounting and taskstats by ignoring the return value of delay accounting functions that fill in parts of taskstats before it is sent out (either in response to a command or as part of a task exit). Also make delayacct_add_tsk return silently when delay accounting is turned off rather than treat it as an error. Signed-off-by:
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David Brownell authored
IRQs need refcounting and a state flag to track whether the the IRQ should be enabled or disabled as a "normal IRQ" source after a series of calls to {en,dis}able_irq(). For shared IRQs, the IRQ must be enabled so long as at least one driver needs it active. Likewise, IRQs need the same support to track whether the IRQ should be enabled or disabled as a "wakeup event" source after a series of calls to {en,dis}able_irq_wake(). For shared IRQs, the IRQ must be enabled as a wakeup source during sleep so long as at least one driver needs it. But right now they _don't have_ that refcounting ... which means sharing a wakeup-capable IRQ can't work correctly in some configurations. This patch adds the refcount and flag mechanisms to set_irq_wake() -- which is what {en,dis}able_irq_wake() call -- and minimal documentation of what the irq wake mechanism does. Drivers relying on the older (broken) "toggle" semantics will trigger a warning; that'll be a handful of drivers on ARM systems. Signed-off-by:David Brownell <dbrownell@users.sourceforge.net> Acked-by:
Ingo Molnar <mingo@elte.hu> Acked-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Adrian Bunk authored
A static struct mustn't be exported. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Chandra Seetharaman authored
Events sent by Process Events Connector from a 64-bit kernel are not binary compatible with a 32-bit userspace program because the "timestamp" field (struct timespec) is not arch independent. This affects the fields that follow "timestamp" as they will be be off by 8 bytes. This is a problem for 32-bit userspace programs running with 64-bit kernels on ppc64, s390, x86-64.. any "biarch" system. Matt had submitted a different solution to lkml as an RFC earlier. We have since switched to a solution recommended by Evgeniy Polyakov. This patch fixes the problem by changing the timestamp to be a __u64, which stores the number of nanoseconds. Tested on a x86_64 system with both 32 bit application and 64 bit application and on a i386 system. Signed-off-by:
Matt Helsley <matthltc@us.ibm.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net> Signed-off-by:
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Neil Brown authored
The inode number out of an NFS file handle gets passed eventually to ext3_get_inode_block() without any checking. If ext3_get_inode_block() allows it to trigger an error, then bad filehandles can have unpleasant effect - ext3_error() will usually cause a forced read-only remount, or a panic if `errors=panic' was used. So remove the call to ext3_error there and put a matching check in ext3/namei.c where inode numbers are read off storage. [akpm@osdl.org: fix off-by-one error] Signed-off-by:
Jan Kara <jack@suse.cz> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: <stable@kernel.org> Cc: "Stephen C. Tweedie" <sct@redhat.com> Cc: Eric Sandeen <esandeen@redhat.com> Signed-off-by:
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Siddha, Suresh B authored
Use the correct groups while initializing sched groups power for allnodes_domain. This fixes the crash observed while creating exclusive cpusets. Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Reported-and-tested-by:
Paul Jackson <pj@sgi.com> Signed-off-by:
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- 30 Jul, 2006 10 commits
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Linus Torvalds authored
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3734/1: Fix the unused variable warning in __iounmap() [ARM] 3737/1: Export ARM copy/clear_user_page symbols [ARM] 3736/1: xscale: don't mis-report 80219 as an iop32x [ARM] 3733/2: S3C24XX: Remove old IDE registers in Anubis [ARM] 3732/1: S3C24XX: tidy syntax in osiris and anubis machines [ARM] Fix SMP booting [ARM] 3731/1: Allow IRQ definitions of IQ80331 and IQ80332 to co-exist [ARM] 3730/1: ep93xx: enable usb ohci driver in the defconfig [ARM] Fix cats build
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Andi Kleen authored
For some reason it triggers always with NFS root and spams the kernel logs of my nfs root boxes a lot. Signed-off-by:
Andi Kleen <ak@suse.de> Acked-by:
Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by:
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Andi Kleen authored
I didn't test all compilation combinations. Shame on me. And fix a missing option in the boot option following x86-64 (Jan Beulich) Signed-off-by:
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Andi Kleen authored
It was broken before. But having it is important as possible hardware bug workaround. And previously there was no way to force swiotlb if there is another IOMMU. Side effect is that iommu=force won't force swiotlb anymore even if there isn't another IOMMU. Signed-off-by:
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Andi Kleen authored
As Travis Betak points out it accesses the wrong northbridge subfunction now. Switch back to the old code. Cc: "Travis Betak" <betak@mpdtxmail.amd.com> Signed-off-by:
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Jon Mason authored
Calgary hits a NULL pointer dereference when booting in a multi-chassis NUMA system. See Redhat bugzilla number 198498, found by Konrad Rzeszutek (konradr@redhat.com). There are many issues that had to be resolved to fix this problem. Firstly when I originally wrote the code to handle NUMA systems, I had a large misunderstanding that was not corrected until now. That was that I thought the "number of nodes online" referred to number of physical systems connected. So that if NUMA was disabled, there would only be 1 node and it would only show that node's PCI bus. In reality if NUMA is disabled, the system displays all of the connected chassis as one node but is only ignorant of the delays in accessing main memory. Therefore, references to num_online_nodes() and MAX_NUMNODES are incorrect and need to be set to the maximum number of nodes that can be accessed (which are 8). I created a variable, MAX_NUM_CHASSIS, and set it to 8 to fix this. Secondly, when walking the PCI in detect_calgary, the code only checked the first "slot" when looking to see if a device is present. This will work for most cases, but unfortunately it isn't always the case. In the NUMA MXE drawers, there are USB devices present on the 3rd slot (with slot 1 being empty). So, to work around this, all slots (up to 8) are scanned to see if there are any devices present. Lastly, the bus is being enumerated on large systems in a different way the we originally thought. This throws the ugly logic we had out the window. To more elegantly handle this, I reorganized the kva array to be sparse (which removed the need to have any bus number to kva slot logic in tce.c) and created a secondary space array to contain the bus number to phb mapping. With these changes Calgary boots on an x460 with 4 nodes with and without NUMA enabled. Signed-off-by:
Jon Mason <jdmason@us.ibm.com> Signed-off-by:
Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by:
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Muli Ben-Yehuda authored
Fixed off-by-one error in detect_calgary and calgary_init which will cause arrays to overflow. Also, removed impossible to hit BUG_ON. Signed-off-by:
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Andi Kleen authored
On Intel systems generally the TSC stops in C3 or deeper, so don't use it there. Follows similar logic on i386. This should fix problems on Meroms. Signed-off-by:
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Andi Kleen authored
Update defconfig Signed-off-by:
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- 29 Jul, 2006 14 commits
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Catalin Marinas authored
Patch from Catalin Marinas This patch adds #ifdef around some variables in the arch/arm/mm/ioremap.c file. Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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George G. Davis authored
Patch from George G. Davis As reported by various folks on the ARM Linux kernel mailing list, the video-buf.ko driver has undefined references on all ARM machines which use it as observed during `make modules`: Warning: "v4wb_clear_user_page" [drivers/media/video/video-buf.ko] undefined! Similar warnings exist for all ARM machines which use this driver. So this change adds the missing EXPORT_SYMBOLs to allow using this driver as a module. Signed-off-by:
George G. Davis <gdavis@mvista.com> Signed-off-by:
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Lennert Buytenhek authored
Patch from Lennert Buytenhek The IOP 80219 xscale CPU is a stripped down version of the IOP32x. But the fact that the 80219 and IOP32x are very similar doesn't mean that they need to share a cpu table entry. It's also somewhat confusing for the end user to see the 80219 reported as an IOP32x, so this patch splits the IOP32x cpu table entry to make a separate entry for the 80219. Signed-off-by:
Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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Linus Torvalds authored
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] sata_promise: comment out duplicate PCI ID [PATCH] libata: improve EH action and EHI flag handling [PATCH] libata: fix eh_skip_recovery condition [PATCH] libata: fix autopsy ehc->i.action and ehc->i.dev handling
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Jeff Garzik authored
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Jeff Garzik authored
Merge branch 'upstream' of git://electric-eye.fr.zoreil.com/home/romieu/linux-2.6 into upstream-fixes
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Stephen Hemminger authored
Okay, Fix both typo's in one patch .The impact is that the incorrect value was being computed for blinking LED and interrupt moderation values. Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Brice Goglin authored
Always do a dummy RDMA after loading the firmware to work around buggy PCIe chipsets which do not implement resending properly. This is so cheap as to be almost free, and should never have been conditional on the tx boundary != 4096. Signed-off-by:
Brice Goglin <brice@myri.com> Signed-off-by:
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Jeff Garzik authored
Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
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Ingo Molnar authored
Fix robust PI-futexes to be properly unlocked on unexpected exit. For this to work the kernel has to know whether a futex is a PI or a non-PI one, because the semantics are different. Since the space in relevant glibc data structures is extremely scarce, the best solution is to encode the 'PI' information in bit 0 of the robust list pointer. Existing (non-PI) glibc robust futexes have this bit always zero, so the ABI is kept. New glibc with PI-robust-futexes will set this bit. Further fixes from Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Ulrich Drepper <drepper@redhat.com> Signed-off-by:
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Ingo Molnar authored
Fix pi_state->list handling bugs: list handling mishap, locking error. Plus add more debug checks and fix a few style issues i noticed while debugging this. (reported by Ulrich Drepper and Jakub Jelinek.) Signed-off-by:
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Andi Kleen authored
Similar patch to earlier x86-64 patch. When the dwarf2 unwinder fails dump the left over stack with the old unwinder. Also some clarifications in the headers. Signed-off-by:
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Andi Kleen authored
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Andi Kleen authored
The dwarf2 unwinder currently often gets stuck because a lot of assembly code doesn't have proper dwarf2 annotiation yet. This currently often happens with __down. Should fix this by adding proper dwarf2 annotation to all inline assembly. However until that's done we need a quick fix for 2.6.18 to avoid incomplete backtraces. So when this happens dump the rest of the stack with the old unwinder instead of silently not dumping it. There was already a optional "both" mode that dumped both, but that was too ugly. I also clarified the headers for the different backtraces a bit. Also add a clear error message for missing dwarf2 annotation that people can work on. And I removed a dead variable left over from Ingo's changes. Cc: mingo@elte.hu Cc: jbeulich@novell.com Signed-off-by:
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