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2012-03-08TTY: simserial, use tty_port_close_endJiri Slaby
The code is identical except locking. But added locks to protect counts do not hurt here. Rather the contrary. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, remove some tty opsJiri Slaby
All ->start, ->stop and ->wait_until_sent are empty and need not be defined. The time to remove them is now. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, define local tty_port pointerJiri Slaby
And use it to make the code more readable. Since tport doesn't conflict with port anymore and there are not many tport accessors left, do also s/\<tport\>/port/g. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial no longer needs serialPJiri Slaby
Let's do a spin-off of serial_state structure with only needed elements. And remove serialP crap from includes. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, stop using serial_state->{line,icount}Jiri Slaby
* instead of line, use tty->index or an iterator * icount is not made public, only the tx path increments it Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, remove tmp_bufJiri Slaby
It is totally unused. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, remove static initializationJiri Slaby
We do not use any of the preinitialized rs_state members for something real. So there is no need to initialize them. At the places we used them for printing, just print the values. And since only one port is supported, get rid of the loop. This simplifies simrs_init a heap. Thus we can handle fail paths in a standard way without panicing. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: amiserial/simserial, use flags from tty_portJiri Slaby
This changes flags' type to ulong which is appropriate for all the set/clear_bits performed in the drivers.. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: amiserial/simserial, use count from tty_portJiri Slaby
Nothing special. Just remove count from serial_state and change all users to use tty_port. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: amiserial/simserial, use close delays from tty_portJiri Slaby
Note that previously simserial set the delay to 0. So we preserve that. BUT, is it correct? Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: amiserial/simserial, use tty_portJiri Slaby
Add tty_port to serial_state and start using common tty port members from tty_port in amiserial and simserial. The rest will follow one by one. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, pass tty down to functionsJiri Slaby
This avoids pain with tty refcounting and touching tty_port in the future. It allows us to remove some state->tty tests because the tty passed down to them can never be NULL. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: serialP, merge serial_state and async_structJiri Slaby
This is the final step to get rid of the one of the structures. A further cleanup will follow. And I struct serial_state deserves cease to exist after a switch to tty_port too. While changing the lines, it removes also pointless tty->driver_data casts. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, remove IRQ_TJiri Slaby
We do not set ASYNC_SHARE_IRQ anywhere. And since IRQF_DISABLED is a noop, pass zero to request_irq directly instead of this ugly macro. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, remove support of shared interruptsJiri Slaby
It never worked there. The ISR was never written for that kind of stuff. So remove all that crap with a hash of linked lists and pass the pointer directly to the ISR. BTW this answers the question there: * I don't know exactly why they don't use the dev_id opaque data * pointer instead of this extra lookup table -> Because they thought they will support more devices bound to a single interrupt w/o IRQF_SHARED. They would need exactly the hash there. What I don't understand is rebinding of the interrupt in the shutdown path. They perhaps meant to do just synchronize_irq? In any case, this is all gone and free_irq there properly. By removing the hash we save some bits (exactly NR_IRQS * 8 bytes of .bss and over a kilo of .text): before: text data bss dec hex filename 19600 320 8227 28147 6df3 ../a/ia64/arch/ia64/hp/sim/simserial.o after: text data bss dec hex filename 18568 320 28 18916 49e4 ../a/ia64/arch/ia64/hp/sim/simserial.o Note that a shared interrupt could not work too. request_irq requires data parameter to be non-NULL. So the whole IRQ_T exercise was pointless. Finally, this helps us remove another two members of async_struct :). Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial/amiserial, use one instance of other membersJiri Slaby
This means: * close_delay * closing_wait * line * port * xmit_fifo_size This actually fixes a bug in amiserial. It initializes one and uses the other of the close delays. Yes, duplicating structure members is evil. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: simserial, use only one copy of async flagsJiri Slaby
The same as for amiserial. Use only one instance of the flags. Also remove them from async_struct now. Nobody else uses them. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08simserial, bail out when request_irq failsJiri Slaby
Without this, the code succeeds when the port is opened by root and we get unwanted interrupts storm on the first key stroke. Instead of that, tell the user we failed and that we won't continue. I suppose, the code was copied from the serial layer where we may want to change the irq number, so we must allow open even of the failing port. This is not the case for this driver at all. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08hpsim, initialize chip for assigned irqsJiri Slaby
Currently, when assign_irq_vector is called and the irq connected in the simulator, the irq is not ready. request_irq will return ENOSYS immediately. It is because the irq chip is unset. Hence set the chip properly to irq_type_hp_sim. And make sure this is done from both users of simulated interrupts. Also we have to set handler here, otherwise we end up in handle_bad_int resulting in spam in logs and no irqs handled. We use handle_simple_irq as these are SW interrupts that need no ACK or anything. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08simserial, include some headersJiri Slaby
And remove declarations which are already in the headers. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08hpsim, fix SAL handling in fw-emuJiri Slaby
The switch-cases of SAL_FREQ_BASE generate non-relocatable code. The same as for the ifs one level upper. This causes oopses early in boot because the kernel jumps to the hell instead of the offset in sal callback. So use ifs here for SAL_FREQ_BASE decision too. Isn't there any compiler directive or settings to solve that cleanly? Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: amiserial, remove tasklet for tty_wakeupJiri Slaby
tty_wakeup is safe to be called from all contexts. No need to schedule a tasklet for that. Let's call it directly like in other drivers. This allows us to kill another member of async_struct structure. (If we remove the dummy uses in simserial.) Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: serialP, remove unused materialJiri Slaby
First, remove unused macro and rs_multiport_struct structure. Nobody uses them at all. Further, the 2 drivers (they are below) which use the rest of structures from serialP.h (async_struct and serial_state) do not use all the members. Remove the members: * which are unused or * which are only initialized and never used for something real. Everybody should avoid the structures with a looong distance. Finally, remove the ALPHA kludge MCR quirks. They are 1:1 copy from 8250.h. No need to redefine them here. The 2 promised users of the structures: arch/ia64/hp/sim/simserial.c drivers/tty/amiserial.c Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: remove unneeded tty->index checksJiri Slaby
Checking if tty->index is in bounds is not needed. The tty has the index set in the initial open. This is done in get_tty_driver. And it can be only in interval <0,driver->num). So remove the tests which check exactly this interval. Some are left untouched as they check against the current backing device count. (Leaving apart that the check is racy in most of the cases.) Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08TTY: remove re-assignments to tty_driver membersJiri Slaby
All num, magic and owner are set by alloc_tty_driver. No need to re-set them on each allocation site. pti driver sets something different to what it passes to alloc_tty_driver. It is not a bug, since we don't use the lines parameter in any way. Anyway this is fixed, and now we do the right thing. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08KVM: Ensure all vcpus are consistent with in-kernel irqchip settingsAvi Kivity
If some vcpus are created before KVM_CREATE_IRQCHIP, then irqchip_in_kernel() and vcpu->arch.apic will be inconsistent, leading to potential NULL pointer dereferences. Fix by: - ensuring that no vcpus are installed when KVM_CREATE_IRQCHIP is called - ensuring that a vcpu has an apic if it is installed after KVM_CREATE_IRQCHIP This is somewhat long winded because vcpu->arch.apic is created without kvm->lock held. Based on earlier patch by Michael Ellerman. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-08KVM: Introduce kvm_memory_slot::arch and move lpage_info into itTakuya Yoshikawa
Some members of kvm_memory_slot are not used by every architecture. This patch is the first step to make this difference clear by introducing kvm_memory_slot::arch; lpage_info is moved into it. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05KVM: provide synchronous registers in kvm_runChristian Borntraeger
On some cpus the overhead for virtualization instructions is in the same range as a system call. Having to call multiple ioctls to get set registers will make certain userspace handled exits more expensive than necessary. Lets provide a section in kvm_run that works as a shared save area for guest registers. We also provide two 64bit flags fields (architecture specific), that will specify 1. which parts of these fields are valid. 2. which registers were modified by userspace Each bit for these flag fields will define a group of registers (like general purpose) or a single register. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05KVM: s390: ucontrol: export SIE control block to userCarsten Otte
This patch exports the s390 SIE hardware control block to userspace via the mapping of the vcpu file descriptor. In order to do so, a new arch callback named kvm_arch_vcpu_fault is introduced for all architectures. It allows to map architecture specific pages. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05KVM: s390: add parameter for KVM_CREATE_VMCarsten Otte
This patch introduces a new config option for user controlled kernel virtual machines. It introduces a parameter to KVM_CREATE_VM that allows to set bits that alter the capabilities of the newly created virtual machine. The parameter is passed to kvm_arch_init_vm for all architectures. The only valid modifier bit for now is KVM_VM_S390_UCONTROL. This requires CAP_SYS_ADMIN privileges and creates a user controlled virtual machine on s390 architectures. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-01sched/rt: Use schedule_preempt_disabled()Thomas Gleixner
Coccinelle based conversion. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-24swm5zut3h9c4a6s46x8rws@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-02-27[IA64] Fix a couple of warnings for EXPORT_SYMBOLPaul Gortmaker
To get rid of things like: arch/ia64/sn/kernel/sn2/sn_hwperf.c:1002:1: warning: data definition has no type or storage class arch/ia64/sn/kernel/sn2/sn_hwperf.c:1002:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' arch/ia64/sn/kernel/sn2/sn_hwperf.c:1002:1: warning: parameter names (without types) in function declaration Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-27[IA64] Check return from device_register() in cx_device_register()Paul Gortmaker
The device_register() is declared with must_check, causing this: arch/ia64/sn/kernel/tiocx.c: In function 'cx_device_register': arch/ia64/sn/kernel/tiocx.c:210:17: warning: ignoring return value of 'device_register', declared with attribute warn_unused_result Check the return value, and free resources if it fails. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-27[IA64] Fix warning from machine_kexec.cPaul Gortmaker
Use proper cpp defined(...) constructs to avoid this: arch/ia64/kernel/machine_kexec.c: In function 'arch_crash_save_vmcoreinfo': arch/ia64/kernel/machine_kexec.c:160:8: warning: "CONFIG_PGTABLE_4" is not defined Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-24[IA64] simserial, bail out when request_irq failsJiri Slaby
Without this, the code succeeds when the port is opened by root and we get unwanted interrupts storm on the first key stroke. Instead of that, tell the user we failed and that we won't continue. I suppose, the code was copied from the serial layer where we may want to change the irq number, so we must allow open even of the failing port. This is not the case for this driver at all. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-24[IA64] hpsim, initialize chip for assigned irqsJiri Slaby
Currently, when assign_irq_vector is called and the irq connected in the simulator, the irq is not ready. request_irq will return ENOSYS immediately. It is because the irq chip is unset. Hence set the chip properly to irq_type_hp_sim. And make sure this is done from both users of simulated interrupts. Also we have to set handler here, otherwise we end up in handle_bad_int resulting in spam in logs and no irqs handled. We use handle_simple_irq as these are SW interrupts that need no ACK or anything. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-24[IA64] simserial, include some headersJiri Slaby
And remove declarations which are already in the headers. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-24[IA64] hpsim, fix SAL handling in fw-emuJiri Slaby
The switch-cases of SAL_FREQ_BASE generate non-relocatable code. The same as for the ifs one level upper. This causes oopses early in boot because the kernel jumps to the hell instead of the offset in sal callback. So use ifs here for SAL_FREQ_BASE decision too. Isn't there any compiler directive or settings to solve that cleanly? Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-24arch/ia64/hp/sim/simeth.c: print MAC via printk format specifierDanny Kukawka
Print MAC/dev_addr via printk extended format specifier %pm instead of custom code. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
2012-02-24net: Add framework to allow sending packets with customized CRC.Ben Greear
This is useful for testing RX handling of frames with bad CRCs. Requires driver support to actually put the packet on the wire properly. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-24static keys: Introduce 'struct static_key', static_key_true()/false() and ↵Ingo Molnar
static_key_slow_[inc|dec]() So here's a boot tested patch on top of Jason's series that does all the cleanups I talked about and turns jump labels into a more intuitive to use facility. It should also address the various misconceptions and confusions that surround jump labels. Typical usage scenarios: #include <linux/static_key.h> struct static_key key = STATIC_KEY_INIT_TRUE; if (static_key_false(&key)) do unlikely code else do likely code Or: if (static_key_true(&key)) do likely code else do unlikely code The static key is modified via: static_key_slow_inc(&key); ... static_key_slow_dec(&key); The 'slow' prefix makes it abundantly clear that this is an expensive operation. I've updated all in-kernel code to use this everywhere. Note that I (intentionally) have not pushed through the rename blindly through to the lowest levels: the actual jump-label patching arch facility should be named like that, so we want to decouple jump labels from the static-key facility a bit. On non-jump-label enabled architectures static keys default to likely()/unlikely() branches. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jason Baron <jbaron@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: a.p.zijlstra@chello.nl Cc: mathieu.desnoyers@efficios.com Cc: davem@davemloft.net Cc: ddaney.cavm@gmail.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20120222085809.GA26397@elte.hu Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-02-23PCI: collapse pcibios_resource_to_busBjorn Helgaas
Everybody uses the generic pcibios_resource_to_bus() supplied by the core now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-23ia64/PCI: get rid of device resource fixupsBjorn Helgaas
Tell the PCI core about host bridge address translation so it can take care of bus-to-resource conversion for us. CC: Tony Luck <tony.luck@intel.com> CC: Jack Steiner <steiner@sgi.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-23ia64/PCI: SN: convert to pci_scan_root_bus() for correct root bus resourcesBjorn Helgaas
Convert from pci_scan_bus() to pci_scan_root_bus(). Supply the root bus resources from bussoft. When we move the resource adjustment from pcibios_fixup_resources() to the PCI core, it will be important to have the root bus resources correct from the beginning. CC: Tony Luck <tony.luck@intel.com> CC: Jack Steiner <steiner@sgi.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-22[IA64] genirq fixup for SGI/SNDimitri Sivanich
This patch allows the system to boot and enables the console and at least some hardware drivers, as well as some platform error handling. Tested on a variety of SGI Altix system without issues. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Tested-by: Raymund Will <rw@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-02-21sock: Introduce the SO_PEEK_OFF sock optionPavel Emelyanov
This one specifies where to start MSG_PEEK-ing queue data from. When set to negative value means that MSG_PEEK works as ususally -- peeks from the head of the queue always. When some bytes are peeked from queue and the peeking offset is non negative it is moved forward so that the next peek will return next portion of data. When non-peeking recvmsg occurs and the peeking offset is non negative is is moved backward so that the next peek will still peek the proper data (i.e. the one that would have been picked if there were no non peeking recv in between). The offset is set using per-proto opteration to let the protocol handle the locking issues and to check whether the peeking offset feature is supported by the protocol the socket belongs to. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-21ia64: Fix typo in irq_xen.cMasanari Iida
Correct spelling "vecotr" to "vector" in arch/ia64/xen/irq_xen.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-14ia64: Use generic posix_types.hH. Peter Anvin
Change the ia64 architecture to use <asm-generic/posix_types.h>. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/1328677745-20121-10-git-send-email-hpa@zytor.com Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com>
2012-02-08[IA64] disable interrupts when exiting from ia64_mca_cmc_int_handler()Jiri Kosina
SAL specification mandates that ia64_mca_log_sal_error_record() gets called with interrupts enabled, and that's why ia64_mca_cmc_int_handler() is enabling them. It however forgets to re-disable them when exiting, which triggers WARN_ON() in generic IRQ handler. Disable the interrupts again before exiting. This is analogous to a3967685745 ("[IA64] disable interrupts at end of ia64_mca_cpe_int_handler()"). Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-01-18Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux This includes initial support for the recently published ACPI 5.0 spec. In particular, support for the "hardware-reduced" bit that eliminates the dependency on legacy hardware. APEI has patches resulting from testing on real hardware. Plus other random fixes. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (52 commits) acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 ACPI processor: Remove unneeded cpuidle_unregister_driver call intel idle: Make idle driver more robust intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle ACPI: kernel-parameters.txt : Add intel_idle.max_cstate intel_idle: remove redundant local_irq_disable() call ACPI processor: Fix error path, also remove sysdev link ACPI: processor: fix acpi_get_cpuid for UP processor intel_idle: fix API misuse ACPI APEI: Convert atomicio routines ACPI: Export interfaces for ioremapping/iounmapping ACPI registers ACPI: Fix possible alignment issues with GAS 'address' references ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64) ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64) ACPI: Store SRAT table revision ACPI, APEI, Resolve false conflict between ACPI NVS and APEI ACPI, Record ACPI NVS regions ACPI, APEI, EINJ, Refine the fix of resource conflict ...