- 24 Feb, 2008 40 commits
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Grant Grundler authored
Kyle and I are co-maintaining tulip driver. Normally kyle will review my patchs and submit them. I'll deal with bugzilla.kernel.org bugs and try to resolve those bugs. Signed-off-by:
Grant Grundler <grundler@parisc-linux.org> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Andy Gospodarek authored
I booted an igb kernel with the option pci=nomsi and instantly noticed that interrupts no longer worked on my igb device. I took a look at the interrupt initialization and quickly discovered a comment stating: "DO NOT USE EIAME or IAME in legacy mode" It seemed a bit odd that bits to enable IAM were being set in legacy interrupt mode, so I dropped out the following parts and interrupts began working fine again. [Updated code flow and a nitpick spelling error --Auke] Signed-off-by:
Andy Gospodarek <andy@greyhouse.net> Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
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Scott Wood authored
The lock acquisition in fs_ioctl() does not appear to actually be necessary, and thus is simply removed. Signed-off-by:
Scott Wood <scottwood@freescale.com> Signed-off-by:
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Thomas Klein authored
This patch adds kdump support to the ehea driver. As the firmware doesn't free resource handles automatically, the driver has to run an as simple as possible free resource function in case of a crash shutdown. The function iterates over two arrays freeing all resource handles which are stored there. The arrays are kept up-to-date during normal runtime. The crash handler fn is triggered by the recently introduced PPC crash shutdown reg/unreg functions. Signed-off-by:
Thomas Klein <tklein@de.ibm.com> Signed-off-by:
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David S. Miller authored
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Mirco Tischler authored
This fixes the following compile error caused by commit 3a2d5b70 ("PM: Introduce PM_EVENT_HIBERNATE callback state") CC [M] drivers/usb/host/u132-hcd.o drivers/usb/host/u132-hcd.c: In function ‘u132_suspend’: drivers/usb/host/u132-hcd.c:3224: error: expected expression before ‘int’ drivers/usb/host/u132-hcd.c:3225: error: ‘ports’ undeclared (first use in this function) ... Signed-off-by:
Mirco Tischler <mt-ml@gmx.de> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Joonwoo Park authored
The function ebt_do_table doesn't take NF_DROP as a verdict from the targets. Signed-off-by:
Joonwoo Park <joonwpark81@gmail.com> Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Pavel Emelyanov authored
Use the added dev_alloc_name() call to create tunnel device name, rather than iterate in a hand-made loop with an artificial limit. Thanks Patrick for noticing this. [ The way this works is, when the device is actually registered, the generic code noticed the '%' in the name and invokes dev_alloc_name() to fully resolve the name. -DaveM ] Signed-off-by:
Pavel Emelyanov <xemul@openvz.org> Signed-off-by:
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David S. Miller authored
MAC_FMT had only one user and we tried to get rid of that, but this created more problems than it solved. As a result, this reverts three commits: 235365f3 ("net/8021q/vlan_dev.c: Use print_mac."), fea5fa87 ("[NET]: Remove MAC_FMT"), and 8f789c48 ("[NET]: Elminate spurious print_mac() calls.") Signed-off-by:
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Pavel Emelyanov authored
The neigh_hash_grow() may update the tbl->hash_rnd value, which is used in all tbl->hash callbacks to calculate the hashval. Two lookup routines may race with this, since they call the ->hash callback without the tbl->lock held. Since the hash_rnd is changed with this lock write-locked moving the calls to ->hash under this lock read-locked closes this gap. Signed-off-by:
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Thomas Graf authored
RTM_NEWLINK allows for already existing links to be modified. For this purpose do_setlink() is called which expects address attributes with a payload length of at least dev->addr_len. This patch adds the necessary validation for the RTM_NEWLINK case. The address length for links to be created is not checked for now as the actual attribute length is used when copying the address to the netdevice structure. It might make sense to report an error if less than addr_len bytes are provided but enforcing this might break drivers trying to be smart with not transmitting all zero addresses. Signed-off-by:
Thomas Graf <tgraf@suug.ch> Signed-off-by:
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Stephen Hemminger authored
When asked to blink LEDs the tg3 driver behaves when using: ethtool -p ethX The default value for data is zero, and other drivers interpret this as blink forever (or at least a really long time). The tg3 driver interprets this as blink once. All drivers should have the same behaviour. Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Acked-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
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Michael Chan authored
Signed-off-by:
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Oliver Pinter authored
Signed-off-by:
Oliver Pinter <oliver.pntr@gmail.com> Signed-off-by:
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Michael Chan authored
Because of some board issues, we need to disable parallel detect on an HP blade. Without this patch, the link state can become stuck when it goes into parallel detect mode. Signed-off-by:
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Michael Chan authored
The previous patches to workaround the 5706S on an HP blade were not sufficient. The link state still does not change properly in some cases. This patch adds polling to make it completely reliable. Signed-off-by:
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Linus Torvalds authored
Oleg Nesterov and others have pointed out that on some architectures, the traditional sequence of set_current_state(TASK_INTERRUPTIBLE); if (CONDITION) return; schedule(); is racy wrt another CPU doing CONDITION = 1; wake_up_process(p); because while set_current_state() has a memory barrier separating setting of the TASK_INTERRUPTIBLE state from reading of the CONDITION variable, there is no such memory barrier on the wakeup side. Now, wake_up_process() does actually take a spinlock before it reads and sets the task state on the waking side, and on x86 (and many other architectures) that spinlock is in fact equivalent to a memory barrier, but that is not generally guaranteed. The write that sets CONDITION could move into the critical region protected by the runqueue spinlock. However, adding a smp_wmb() to before the spinlock should now order the writing of CONDITION wrt the lock itself, which in turn is ordered wrt the accesses within the spinlock (which includes the reading of the old state). This should thus close the race (which probably has never been seen in practice, but since smp_wmb() is a no-op on x86, it's not like this will make anything worse either on the most common architecture where the spinlock already gave the required protection). Acked-by:
Oleg Nesterov <oleg@tv-sign.ru> Acked-by:
Dmitry Adamushko <dmitry.adamushko@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by:
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Jeff Garzik authored
- Fix build 'make randconfig' build warning spotted by Toralf Foerster: drivers/scsi/mvsas.c: In function 'mvs_hexdump': drivers/scsi/mvsas.c:715: error: implicit declaration of function 'isalnum' - Remove unneeded prototypes (spotted by hch) Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Signed-off-by:
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Oleg Nesterov authored
(sorry for being offtpoic, but while experts are here...) A "typical" implementation of atomic_add_unless() can return 0 immediately after the first atomic_read() (before doing cmpxchg). In that case it doesn't provide any barrier semantics. See include/asm-ia64/atomic.h as an example. We should either change the implementation, or fix the docs. Signed-off-by:
Nick Piggin <npiggin@suse.de> Signed-off-by:
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Li Zefan authored
Cgroup requires the subsystem to return negative error code on error in the create method. Signed-off-by:
Li Zefan <lizf@cn.fujitsu.com> Acked-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by:
Balbir Singh <balbir@in.ibm.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Li Zefan authored
Remove this VM_BUG_ON(), as Balbir stated: We used to have a for loop with !list_empty() as a termination condition and VM_BUG_ON(!pc) is a spill over. With the new loop, VM_BUG_ON(!pc) does not make sense. Signed-off-by:
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Li Zefan authored
- remove trailing " Bytes"s in the demonstration - remove section 4.4 (feature control_type has been removed) - fix reference section Signed-off-by:
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Li Zefan authored
Signed-off-by:
Paul Menage <menage@google.com> Signed-off-by:
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Li Zefan authored
The list head res->tasks gets initialized twice in find_css_set(). Signed-off-by:
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Li Zefan authored
Cgroup uses unsigned long for subsys bitops, not unsigned long long. Signed-off-by:
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Li Zefan authored
opts.release_agent is not kfree()ed in all necessary places. Signed-off-by:
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Li Zefan authored
- replace old name 'cont' with 'cgrp' (Paul Menage did this cleanup for cgroup.c in commit bd89aabc) - remove a duplicate declaration of cgroup_path() Signed-off-by:
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Li Zefan authored
fix: - comments about need_forkexit_callback - comments about release agent - typo and comment style, etc. Signed-off-by:
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Li Zefan authored
Misc fixes and updates, make the doc consistent with current cgroup implementation. Signed-off-by:
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Alexander van Heukelum authored
WARNING: vmlinux.o(.meminit.text+0x649): Section mismatch in reference from the function free_area_init_core() to the function .init.text:setup_usemap() The function __meminit free_area_init_core() references a function __init setup_usemap(). If free_area_init_core is only used by setup_usemap then annotate free_area_init_core with a matching annotation. The warning is covers this stack of functions in mm/page_alloc.c: alloc_bootmem_node must be marked __init. alloc_bootmem_node is used by setup_usemap, if !SPARSEMEM. (usemap_size is only used by setup_usemap, if !SPARSEMEM.) setup_usemap is only used by free_area_init_core. free_area_init_core is only used by free_area_init_node. free_area_init_node is used by: arch/alpha/mm/numa.c: __init paging_init() arch/arm/mm/init.c: __init bootmem_init_node() arch/avr32/mm/init.c: __init paging_init() arch/cris/arch-v10/mm/init.c: __init paging_init() arch/cris/arch-v32/mm/init.c: __init paging_init() arch/m32r/mm/discontig.c: __init zone_sizes_init() arch/m32r/mm/init.c: __init zone_sizes_init() arch/m68k/mm/motorola.c: __init paging_init() arch/m68k/mm/sun3mmu.c: __init paging_init() arch/mips/sgi-ip27/ip27-memory.c: __init paging_init() arch/parisc/mm/init.c: __init paging_init() arch/sparc/mm/srmmu.c: __init srmmu_paging_init() arch/sparc/mm/sun4c.c: __init sun4c_paging_init() arch/sparc64/mm/init.c: __init paging_init() mm/page_alloc.c: __init free_area_init_nodes() mm/page_alloc.c: __init free_area_init() and mm/memory_hotplug.c: hotadd_new_pgdat() hotadd_new_pgdat can not be an __init function, but: It is compiled for MEMORY_HOTPLUG configurations only MEMORY_HOTPLUG depends on SPARSEMEM || X86_64_ACPI_NUMA X86_64_ACPI_NUMA depends on X86_64 ARCH_FLATMEM_ENABLE depends on X86_32 ARCH_DISCONTIGMEM_ENABLE depends on X86_32 So X86_64_ACPI_NUMA implies SPARSEMEM, right? So we can mark the stack of functions __init for !SPARSEMEM, but we must mark them __meminit for SPARSEMEM configurations. This is ok, because then the calls to alloc_bootmem_node are also avoided. Compile-tested on: silly minimal config defconfig x86_32 defconfig x86_64 defconfig x86_64 -HIBERNATION +MEMORY_HOTPLUG Signed-off-by:
Alexander van Heukelum <heukelum@fastmail.fm> Reviewed-by:
Sam Ravnborg <sam@ravnborg.org> Acked-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Casey Schaufler authored
Update the Smack LSM to allow the registration of the capability "module" as a secondary LSM. Integrate the new hooks required for file based capabilities. Signed-off-by:
Casey Schaufler <casey@schaufler-ca.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Paul Moore <paul.moore@hp.com> Cc: James Morris <jmorris@namei.org> Signed-off-by:
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Srinivasa Ds authored
Kprobes makes use of preempt_disable(),preempt_enable_noresched() and these functions inturn call add/sub_preempt_count(). So we need to refuse user from inserting probe in to these functions. This patch disallows user from probing add/sub_preempt_count(). Signed-off-by:
Srinivasa DS <srinivasa@in.ibm.com> Acked-by:
Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by:
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Andi Kleen authored
Document huge memory/cache overhead of memory controller in Kconfig I was a little surprised that 2.6.25-rc* increased struct page for the memory controller. At least on many x86-64 machines it will not fit into a single cache line now anymore and also costs considerable amounts of RAM. At earlier review I remembered asking for a external data structure for this. It's also quite unobvious that a innocent looking Kconfig option with a single line Kconfig description has such a negative effect. This patch attempts to document these disadvantages at least so that users configuring their kernel can make a informed decision. Signed-off-by:
Andi Kleen <ak@suse.de> Cc: Balbir Singh <balbir@in.ibm.com> Acked-by:
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Richard Kennedy authored
When running "make htmldocs" I'm seeing some non-fatal perl errors caused by trying to parse the callback function definitions in blk-core.c. The errors are "Use of uninitialized value in concatenation (.)..." in combination with: Warning(linux-2.6.25-rc2/block/blk-core.c:1877): No description found for parameter '' The function pointers are defined without a * i.e. int (drv_callback)(struct request *) The compiler is happy with them, but kernel-doc isn't. This patch teaches create_parameterlist in kernel-doc to parse this type of function pointer definition, but is it the right way to fix the problem ? The problem only seems to occur in blk-core.c. However with the patch applied, kernel-doc finds the correct parameter description for the callback in blk_end_request_callback, which is doesn't normally. I thought it would be a bit odd to change to code to use the more normal form of function pointers just to get the documentation to work, so I fixed kernel-doc instead - even though this is teaching it to understand code that might go away (The comment for blk_end_request_callback says that it should not be used and will removed at some point). Signed-off-by:
Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Yoshinori Sato authored
defconfig update. Signed-off-by:
Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by:
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Yoshinori Sato authored
- add missing file and declare. - remove unused file and macros. - some cleanup. Signed-off-by:
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Yoshinori Sato authored
get_user const *ptr access fix. Signed-off-by:
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Yoshinori Sato authored
typo fix. Signed-off-by:
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Thomas Gleixner authored
Not all architectures implement futex_atomic_cmpxchg_inatomic(). The default implementation returns -ENOSYS, which is currently not handled inside of the futex guts. Futex PI calls and robust list exits with a held futex result in an endless loop in the futex code on architectures which have no support. Fixing up every place where futex_atomic_cmpxchg_inatomic() is called would add a fair amount of extra if/else constructs to the already complex code. It is also not possible to disable the robust feature before user space tries to register robust lists. Compile time disabling is not a good idea either, as there are already architectures with runtime detection of futex_atomic_cmpxchg_inatomic support. Detect the functionality at runtime instead by calling cmpxchg_futex_value_locked() with a NULL pointer from the futex initialization code. This is guaranteed to fail, but the call of futex_atomic_cmpxchg_inatomic() happens with pagefaults disabled. On architectures, which use the asm-generic implementation or have a runtime CPU feature detection, a -ENOSYS return value disables the PI/robust features. On architectures with a working implementation the call returns -EFAULT and the PI/robust features are enabled. The relevant syscalls return -ENOSYS and the robust list exit code is blocked, when the detection fails. Fixes http://lkml.org/lkml/2008/2/11/149 Originally reported by: Lennart Buytenhek Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Ingo Molnar <mingo@elte.hu> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Riku Voipio <riku.voipio@movial.fi> Cc: <stable@kernel.org> Signed-off-by:
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Thomas Gleixner authored
When the futex init code fails to initialize the futex pseudo file system it returns early without initializing the hash queues. Should the boot succeed then a futex syscall which tries to enqueue a waiter on the hashqueue will crash due to the unitilialized plist heads. Initialize the hash queues before the filesystem. Signed-off-by:
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