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2012-05-18slub: use __SetPageSlab function to set PG_slab flagJoonsoo Kim
To set page-flag, using SetPageXXXX() and __SetPageXXXX() is more understandable and maintainable. So change it. Signed-off-by: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2012-05-18slub: fix a memory leak in get_partial_node()Joonsoo Kim
In the case which is below, 1. acquire slab for cpu partial list 2. free object to it by remote cpu 3. page->freelist = t then memory leak is occurred. Change acquire_slab() not to zap freelist when it works for cpu partial list. I think it is a sufficient solution for fixing a memory leak. Below is output of 'slabinfo -r kmalloc-256' when './perf stat -r 30 hackbench 50 process 4000 > /dev/null' is done. ***Vanilla*** Sizes (bytes) Slabs Debug Memory ------------------------------------------------------------------------ Object : 256 Total : 468 Sanity Checks : Off Total: 3833856 SlabObj: 256 Full : 111 Redzoning : Off Used : 2004992 SlabSiz: 8192 Partial: 302 Poisoning : Off Loss : 1828864 Loss : 0 CpuSlab: 55 Tracking : Off Lalig: 0 Align : 8 Objects: 32 Tracing : Off Lpadd: 0 ***Patched*** Sizes (bytes) Slabs Debug Memory ------------------------------------------------------------------------ Object : 256 Total : 300 Sanity Checks : Off Total: 2457600 SlabObj: 256 Full : 204 Redzoning : Off Used : 2348800 SlabSiz: 8192 Partial: 33 Poisoning : Off Loss : 108800 Loss : 0 CpuSlab: 63 Tracking : Off Lalig: 0 Align : 8 Objects: 32 Tracing : Off Lpadd: 0 Total and loss number is the impact of this patch. Cc: <stable@vger.kernel.org> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2012-05-18serial: sh-sci: Fix for port types without BRI interrupts.Paul Mundt
In doing the evt2irq() + muxed vector conversion for various port types it became apparent that some of the legacy port types will presently error out due to the irq requesting logic attempting to acquire the non-existent BRI IRQ. This adds some sanity checks to the request/free path to ensure that non-existence of a source in itself is not an error. This should restore functionality for legacy PORT_SCI ports. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18Merge branch 'sh/evt2irq-migration' into sh-latestPaul Mundt
Conflicts: arch/sh/kernel/cpu/sh3/setup-sh770x.c arch/sh/kernel/cpu/sh3/setup-sh7710.c arch/sh/kernel/cpu/sh3/setup-sh7720.c arch/sh/kernel/cpu/sh4/setup-sh7750.c arch/sh/kernel/cpu/sh4a/setup-sh7343.c arch/sh/kernel/cpu/sh4a/setup-sh7366.c arch/sh/kernel/cpu/sh4a/setup-sh7722.c arch/sh/kernel/cpu/sh4a/setup-sh7723.c arch/sh/kernel/cpu/sh4a/setup-sh7724.c arch/sh/kernel/cpu/sh4a/setup-sh7757.c arch/sh/kernel/cpu/sh4a/setup-sh7763.c arch/sh/kernel/cpu/sh4a/setup-sh7770.c arch/sh/kernel/cpu/sh4a/setup-sh7785.c arch/sh/kernel/cpu/sh4a/setup-sh7786.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: legacy PCI evt2irq migration.Paul Mundt
This converts over the legacy PCI IRQs to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: cpu dma evt2irq migration.Paul Mundt
This migrates the cpu-family relative DMA IRQ definitions over to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7763rdp evt2irq migration.Paul Mundt
Migrate sh7763rdp to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sdk7780 evt2irq migration.Paul Mundt
Migrate sdk7780 to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18x86-64: Fix accounting in kernel_physical_mapping_init()Jan Beulich
When finding a present and acceptable 2M/1G mapping, the number of pages mapped this way shouldn't be incremented (as it was already incremented when the earlier part of the mapping was established). Instead, last_map_addr needs to be updated in this case. Further, address increments were wrong in one place each in both phys_pmd_init() and phys_pud_init() (lacking the aligning down to the respective page boundary). As we're now doing the same calculation several times, fold it into a single instance using a local variable (matching how kernel_physical_mapping_init() itself does it at the PGD level). Observed during code inspection, not because of an actual problem. Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4FB3C27202000078000841A0@nat28.tlf.novell.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18x86/tlb: Clean up and unify TLB_FLUSH_ALL definitionAlex Shi
Since sizeof(long) is 4 in x86_32 mode, and it's 8 in x86_64 mode, sizeof(long long) is also 8 byte in x86_64 mode. use long mode can fit TLB_FLUSH_ALL defination here both in 32 or 64 bits mode. Signed-off-by: Alex Shi <alex.shi@intel.com> Link: http://lkml.kernel.org/n/tip-evv5bekiipi2pmyzdsy8lkkw@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18sh: migor evt2irq migration.Paul Mundt
Migrate migor to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: landisk evt2irq migration.Paul Mundt
Migrate landisk to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18x86/apic: Implement EIO micro-optimizationMichael S. Tsirkin
We know both register and value for eoi beforehand, so there's no need to check it and no need to do math to calculate the msr. Saves instructions/branches on each EOI when using x2apic. I looked at the objdump output to verify that the generated code looks right and actually is shorter. The real improvemements will be on the KVM guest side though, those come in a later patch. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: gleb@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/e019d1a125316f10d3e3a4b2f6bda41473f4fb72.1337184153.git.mst@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18x86/apic: Add apic->eoi_write() callbackMichael S. Tsirkin
Add eoi_write callback so that kvm can override eoi accesses without touching the rest of the apic. As a side-effect, this will enable a micro-optimization for apics using msr. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: gleb@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/0df425d746c49ac2ecc405174df87752869629d2.1337184153.git.mst@redhat.com [ tidied it up a bit ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18x86/apic: Use symbolic APIC_EOI_ACKMichael S. Tsirkin
Use the symbol instead of hard-coded numbers, now that the reason for the value is documented where the constant is defined we don't need to duplicate this explanation in code. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: gleb@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/ecbe4c79d69c172378e47e5a587ff5cd10293c9f.1337184153.git.mst@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18x86/apic: Fix typo EIO_ACK -> EOI_ACK and document itMichael S. Tsirkin
Fix typo in the macro name and document the reason it has this value. Update users. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: gleb@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/37867b31b9330690af2e60a2a7c4cb4b1b070caf.1337184153.git.mst@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18regulator: ab3100: Use regulator_map_voltage_iterate()Axel Lin
regulator_map_voltage_iterate() is for drivers implementing set_voltage_sel() and list_voltage() to use it as their map_voltage() operation. In this case, regulator_map_voltage_iterate() happen to be doing the same thing as ab3100_get_best_voltage_index() function. So we can use it to replace ab3100_get_best_voltage_index() function. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: tps65217: Convert to set_voltage_sel and map_voltageAxel Lin
Convert tps65217_pmic_ops to use set_voltage_sel and map_voltage. After this convertion, we can also use tps65217_pmic_set_voltage_sel() for set_voltage_sel callback of tps65217_pmic_ldo1_ops. Thus this patch also removes tps65217_pmic_ldo1_set_voltage_sel() function. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: Enable the ab8500 for Device TreeLee Jones
Here we setup the ab8500 regulator driver for DT. We first do this in the normal way, by providing a match structure during initialisation, but then we provide information so that whilst probing we can use existing data structures to do DT look-ups. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: ab8500: Split up probe() into manageable piecesLee Jones
ab8500's probe() function is becoming quite large, so in the lead up to Device Tree enablement which will fork the thread of execution this patch splits it into 3 main areas; basic error checking will remain in probe(), but regulator register initialisation and regulator registration have been moved to their own functions which will be called in sequence by probe() and the DT equivalent. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18x86/xen/apic: Add missing #include <xen/xen.h>Ingo Molnar
This file depends on <xen/xen.h>, but the dependency was hidden due to: <asm/acpi.h> -> <asm/trampoline.h> -> <asm/io.h> -> <xen/xen.h> With the removal of <asm/trampoline.h>, this exposed the missing Cc: Len Brown <lenb@kernel.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/n/tip-7ccybvue6mw6wje3uxzzcglj@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-18x86, relocs: Workaround for binutils 2.22.52.0.1 section bugH. Peter Anvin
GNU ld 2.22.52.0.1 has a bug that it blindly changes symbols from section-relative to absolute if they are in a section of zero length. This turns the symbols __init_begin and __init_end into absolute symbols. Let the relocs program know that those should be treated as relative symbols. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: H.J. Lu <hjl.tools@gmail.com>
2012-05-18sh: kfr2r09 evt2irq migration.Paul Mundt
Migrate kfr2r09 to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: ecovec24 evt2irq migration.Paul Mundt
Migrate ecovec24 to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: ap325rxa evt2irq migration.Paul Mundt
Migrate ap325rxa to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: urquell evt2irq migration.Paul Mundt
Migrate urquell to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7785lcr evt2irq migration.Paul Mundt
Migrate sh7785lcr to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: hp6xx evt2irq migration.Paul Mundt
Migrate hp6xx to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: mach-se evt2irq migration.Paul Mundt
Migrate Solution Engine boards to evt2irq backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18ipv6: bool conversions phase1Eric Dumazet
ipv6_opt_accepted() returns a bool, and can use const pointers ipv6_addr_equal(), ipv6_addr_any(), ipv6_addr_loopback(), ipv6_addr_orchid() return a bool. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-18sh: sh7757lcr evt2irq migration.Paul Mundt
Migrate sh7757lcr to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: magicpanelr2 evt2irq migration.Paul Mundt
Migrate magicpanelr2 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: espt evt2irq migration.Paul Mundt
Migrate espt to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: edosk7760 evt2irq migration.Paul Mundt
Migrate edosk7760 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: edosk7705 evt2irq migration.Paul Mundt
Migrate edosk7705 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7720 evt2irq migration.Paul Mundt
Migrate SH7720 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18ip_frag: struct inet_frags match() method returns a boolEric Dumazet
- match() method returns a boolean - return (A && B && C && D) -> return A && B && C && D - fix indentation Signed-off-by: Eric Dumazet <edumazet@google.com>
2012-05-18net: Remove netdevice ec_ptr, no longer used.David S. Miller
ECONET is gone, thus this can be deleted as well. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-18sh: sh7710/sh7712 evt2irq migration.Paul Mundt
Migrate SH7710/SH7712 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18econet: remove ancient bug ridden protocolStephen Hemminger
More spring cleaning! The ancient Econet protocol should go. Most of the bug fixes in recent years have been fixing security vulnerabilities. The hardware hasn't been made since the 90s, it is only interesting as an archeological curiosity. For the truly curious, or insomniac, go read up on it. http://en.wikipedia.org/wiki/Econet Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-18sh: sh7706/sh7707/sh7709/sh7709 evt2irq migration.Paul Mundt
Migrate SH770x to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7705 evt2irq migration.Paul Mundt
Migrate SH7705 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7760 evt2irq migration.Paul Mundt
Migrate SH7760 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7750 evt2irq migration.Paul Mundt
Migrate SH7750 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh4-202 evt2irq migration.Paul Mundt
Migrate SH4-202 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh-x3 evt2irq migration.Paul Mundt
Migrate SH-X3 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7785 evt2irq migration.Paul Mundt
Migrate SH7785 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7780 evt2irq migration.Paul Mundt
Migrate SH7780 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7770 evt2irq migration.Paul Mundt
Migrate SH7770 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7763 evt2irq migration.Paul Mundt
Migrate SH7763 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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