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2013-06-22Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "These are two fixes that came in this week, one for a regression we introduced in 3.10 in the GIC interrupt code, and the other one fixes a typo in newly introduced code" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: irqchip: gic: call gic_cpu_init() as well in CPU_STARTING_FROZEN case ARM: dts: Correct the base address of pinctrl_3 on Exynos5250
2013-06-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fixes from Al Viro: "Several fixes for bugs caught while looking through f_pos (ab)users" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: aout32 coredump compat fix splice: don't pass the address of ->f_pos to methods mconsole: we'd better initialize pos before passing it to vfs_read()...
2013-06-22aout32 coredump compat fixAl Viro
dump_seek() does SEEK_CUR, not SEEK_SET; native binfmt_aout handles it correctly (seeks by PAGE_SIZE - sizeof(struct user), getting the current position to PAGE_SIZE), compat one seeks by PAGE_SIZE and ends up at PAGE_SIZE + already written... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-21Merge branch 'x86/urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Peter Anvin: "This series fixes a couple of build failures, and fixes MTRR cleanup and memory setup on very specific memory maps. Finally, it fixes triggering backtraces on all CPUs, which was inadvertently disabled on x86." * 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Fix dummy variable buffer allocation x86: Fix trigger_all_cpu_backtrace() implementation x86: Fix section mismatch on load_ucode_ap x86: fix build error and kconfig for ia32_emulation and binfmt range: Do not add new blank slot with add_range_with_merge x86, mtrr: Fix original mtrr range get for mtrr_cleanup
2013-06-21Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "Three one-line fixes for my first pull request; one for x86 host, one for x86 guest, one for PPC" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: x86: kvmclock: zero initialize pvclock shared memory area kvm/ppc/booke: Delay kvmppc_lazy_ee_enable KVM: x86: remove vcpu's CPL check in host-invoked XCR set
2013-06-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto fix from Herbert Xu: "This fixes an unaligned crash in XTS mode when using aseni_intel" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: aesni_intel - fix accessing of unaligned memory
2013-06-21Merge tag 'efi-urgent' into x86/urgentH. Peter Anvin
* Don't leak random kernel memory to EFI variable NVRAM when attempting to initiate garbage collection. Also, free the kernel memory when we're done with it instead of leaking - Ben Hutchings Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-06-21x86/efi: Fix dummy variable buffer allocationBen Hutchings
1. Check for allocation failure 2. Clear the buffer contents, as they may actually be written to flash 3. Don't leak the buffer Compile-tested only. [ Tested successfully on my buggy ASUS machine - Matt ] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: stable@vger.kernel.org Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-06-20Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Two smaller fixes - plus a context tracking tracing fix that is a bit bigger" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tracing/context-tracking: Add preempt_schedule_context() for tracing sched: Fix clear NOHZ_BALANCE_KICK sched/x86: Construct all sibling maps if smt
2013-06-20Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Four fixes. The mmap ones are unfortunately larger than desired - fuzzing uncovered bugs that needed perf context life time management changes to fix properly" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix broken PEBS-LL support on SNB-EP/IVB-EP perf: Fix mmap() accounting hole perf: Fix perf mmap bugs kprobes: Fix to free gone and unused optprobes
2013-06-20Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull cpu idle fixes from Thomas Gleixner: - Add a missing irq enable. Fallout of the idle conversion - Fix stackprotector wreckage caused by the idle conversion * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: idle: Enable interrupts in the weak arch_cpu_idle() implementation idle: Add the stack canary init to cpu_startup_entry()
2013-06-20Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fix fro, Benjamin Herrenschmidt: "We accidentally broke hugetlbfs on Freescale embedded processors which use a slightly different page table layout than our server processors" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix bad pmd error with book3E config
2013-06-20Merge branch 'stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull tilepro fix from Chris Metcalf: "This change allows the older tilepro architecture to be correctly built by newer gccs, despite a change that caused gcc to start trying to use an out-of-line implementation for __builtin_ffsll(). This should be inline again starting with gcc 4.7.4 and 4.8.2 or so, but meanwhile this change keeps things from breaking, with the only cost being a few bytes of code in the kernel to provide __ffsdi2 even for compilers that do inline it" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tilepro: work around module link error with gcc 4.7
2013-06-20Merge tag 'arm64-stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 Pull arm64 perf fix from Catalin Marinas: "Perf fix (user-mode PC recording)" * tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: perf: arm64: Record the user-mode PC in the call chain.
2013-06-20x86: Fix trigger_all_cpu_backtrace() implementationMichel Lespinasse
The following change fixes the x86 implementation of trigger_all_cpu_backtrace(), which was previously (accidentally, as far as I can tell) disabled to always return false as on architectures that do not implement this function. trigger_all_cpu_backtrace(), as defined in include/linux/nmi.h, should call arch_trigger_all_cpu_backtrace() if available, or return false if the underlying arch doesn't implement this function. x86 did provide a suitable arch_trigger_all_cpu_backtrace() implementation, but it wasn't actually being used because it was declared in asm/nmi.h, which linux/nmi.h doesn't include. Also, linux/nmi.h couldn't easily be fixed by including asm/nmi.h, because that file is not available on all architectures. I am proposing to fix this by moving the x86 definition of arch_trigger_all_cpu_backtrace() to asm/irq.h. Tested via: echo l > /proc/sysrq-trigger Before the change, this uses a fallback implementation which shows backtraces on active CPUs (using smp_call_function_interrupt() ) After the change, this shows NMI backtraces on all CPUs Signed-off-by: Michel Lespinasse <walken@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1370518875-1346-1-git-send-email-walken@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20perf: arm64: Record the user-mode PC in the call chain.Jed Davis
With this change, we no longer lose the innermost entry in the user-mode part of the call chain. See also the x86 port, which includes the ip, and the corresponding change in arch/arm. Signed-off-by: Jed Davis <jld@mozilla.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-06-20powerpc: Fix bad pmd error with book3E configAneesh Kumar K.V
Book3E uses the hugepd at PMD level and don't encode pte directly at the pmd level. So it will find the lower bits of pmd set and the pmd_bad check throws error. Infact the current code will never take the free_hugepd_range call at all because it will clear the pmd if it find a hugepd pointer. Fix this by clearing bad pmd only if it is not a hugepd pointer. This is regression introduced by e2b3d202d1dba8f3546ed28224ce485bc50010be "powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format" Reported-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-06-19x86: Fix section mismatch on load_ucode_apPaul Gortmaker
We are in the process of removing all the __cpuinit annotations. While working on making that change, an existing problem was made evident: WARNING: arch/x86/kernel/built-in.o(.text+0x198f2): Section mismatch in reference from the function cpu_init() to the function .init.text:load_ucode_ap() The function cpu_init() references the function __init load_ucode_ap(). This is often because cpu_init lacks a __init annotation or the annotation of load_ucode_ap is wrong. This now appears because in my working tree, cpu_init() is no longer tagged as __cpuinit, and so the audit picks up the mismatch. The 2nd hypothesis from the audit is the correct one, as there was an incorrect __init tag on the prototype in the header (but __cpuinit was used on the function itself.) The audit is telling us that the prototype's __init annotation took effect and the function did land in the .init.text section. Checking with objdump on a mainline tree that still has __cpuinit shows that the __cpuinit on the function takes precedence over the __init on the prototype, but that won't be true once we make __cpuinit a no-op. Even though we are removing __cpuinit, we temporarily align both the function and the prototype on __cpuinit so that the changeset can be applied to stable trees if desired. [ hpa: build fix only, no object code change ] Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: stable <stable@vger.kernel.org> # 3.9+ Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Link: http://lkml.kernel.org/r/1371654926-11729-1-git-send-email-paul.gortmaker@windriver.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-06-19mn10300: Fix include dependency in irqflags.h et al.David Daney
We need to pick up the definition of raw_smp_processor_id() from asm/smp.h. For the !SMP case, we need to supply a definition of raw_smp_processor_id(). Because of the include dependencies we cannot use smp_call_func_t in asm/smp.h, but we do need linux/thread_info.h Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
Pull sparc fixes from David Miller: "Various sparc bug fixes, in particular: 1) TSB hashes have to be flushed before TLB on sparc64, from Dave Kleikamp. 2) LEON timer interrupts can get stuck, from Andreas Larsson. 3) Sparc64 needs to handle lack of address-congruence devicetree property, from Bob Picco" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: tsb must be flushed before tlb sparc,leon: Convert to use devm_ioremap_resource sparc64 address-congruence property sparc32, leon: Enable interrupts before going idle to avoid getting stuck sparc32, leon: Remove separate "ticker" timer for SMP sparc: kernel: using strlcpy() instead of strcpy() arch: sparc: prom: looping issue, need additional length check in the outside looping sparc: remove inline marking of EXPORT_SYMBOL functions sparc: Switch to asm-generic/linkage.h
2013-06-19Merge branch 'parisc-3.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "This contains a kernel segfault fix when reading /proc/kpageflags or /proc/kpagecount, two fixes for the serial port and PCI graphic card support on C8000 workstations and a fix to use unshadowed registers for flushing D- and I-caches." * 'parisc-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm parisc: provide pci_mmap_page_range() for parisc parisc: fix serial ports on C8000 workstation parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 (part 2)
2013-06-19metag: fix mm/hugetlb.c build breakageJames Hogan
Commit 106c992a5ebe ("mm/hugetlb: add more arch-defined huge_pte functions") added an include of <asm-generic/hugetlb.h> to each architecture's <asm/hugetlb.h> (except s390). Unfortunately metag was missed which resulted in build errors when hugetlbfs is enabled (see below). Add the include for metag too to fix the build errors: mm/hugetlb.c In function 'make_huge_pte': mm/hugetlb.c +2250 : error: implicit declaration of function 'huge_pte_mkwrite' mm/hugetlb.c +2250 : error: implicit declaration of function 'huge_pte_mkdirty' ... Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-19Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "The larger changes this time are - "ARM: 7755/1: handle user space mapped pages in flush_kernel_dcache_page" which fixes more data corruption problems with O_DIRECT - "ARM: 7759/1: decouple CPU offlining from reboot/shutdown" which gets us back to working shutdown/reboot on SMP platforms - "ARM: 7752/1: errata: LoUIS bit field in CLIDR register is incorrect" which fixes a shutdown regression found in v3.10 on Versatile Express platforms. The remainder are the quite small, maybe one or two line changes" * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7759/1: decouple CPU offlining from reboot/shutdown ARM: 7756/1: zImage/virt: remove hyp-stub.S during distclean ARM: 7755/1: handle user space mapped pages in flush_kernel_dcache_page ARM: 7754/1: Fix the CPU ID and the mask associated to the PJ4B ARM: 7753/1: map_init_section flushes incorrect pmd ARM: 7752/1: errata: LoUIS bit field in CLIDR register is incorrect
2013-06-19perf/x86: Fix broken PEBS-LL support on SNB-EP/IVB-EPStephane Eranian
This patch fixes broken support of PEBS-LL on SNB-EP/IVB-EP. For some reason, the LDLAT extra reg definition for snb_ep showed up as duplicate in the snb table. This patch moves the definition of LDLAT back into the snb_ep table. Thanks to Don Zickus for tracking this one down. Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20130607212210.GA11849@quad Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-19x86: kvmclock: zero initialize pvclock shared memory areaIgor Mammedov
kernel might hung in pvclock_clocksource_read() due to uninitialized memory might contain odd version value in following cycle: do { version = __pvclock_read_cycles(src, &ret, &flags); } while ((src->version & 1) || version != src->version); if secondary kvmclock is accessed before it's registered with kvm. Clear garbage in pvclock shared memory area right after it's allocated to avoid this issue. Ref: https://bugzilla.kernel.org/show_bug.cgi?id=59521 Signed-off-by: Igor Mammedov <imammedo@redhat.com> [See BZ for analysis. We may want a different fix for 3.11, but this is the safest for now - Paolo] Cc: <stable@vger.kernel.org> # 3.8 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-19kvm/ppc/booke: Delay kvmppc_lazy_ee_enableScott Wood
kwmppc_lazy_ee_enable() should be called as late as possible, or else we get things like WARN_ON(preemptible()) in enable_kernel_fp() in configurations where preemptible() works. Note that book3s_pr already waits until just before __kvmppc_vcpu_run to call kvmppc_lazy_ee_enable(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-19sparc: tsb must be flushed before tlbDave Kleikamp
This fixes a race where a cpu may re-load a tlb from a stale tsb right after it has been flushed by a remote function call. I still see some instability when stressing the system with parallel kernel builds while creating memory pressure by writing to /proc/sys/vm/nr_hugepages, but this patch improves the stability significantly. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Acked-by: Bob Picco <bob.picco@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc,leon: Convert to use devm_ioremap_resourceTushar Behera
Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()") introduced devm_ioremap_resource() and deprecated the use of devm_request_and_ioremap(). While at it, also remove the error message as devm_ioremap_resource() also prints similar error message. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> CC: sparclinux@vger.kernel.org CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc64 address-congruence propertybob picco
The Machine Description (MD) property "address-congruence-offset" is optional. According to the MD specification the value is assumed 0UL when not present. This caused early boot failure on T5. Signed-off-by: Bob Picco <bob.picco@oracle.com> CC: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc32, leon: Enable interrupts before going idle to avoid getting stuckAndreas Larsson
This enables interrupts for Leon before having the CPU enter power-down mode. Commit 87fa05aeb3a5e8e21b1a5510eef6983650eff092, "sparc: Use generic idle loop", gets the CPU stuck on idle for Leon systems. On Leon, disabling interrupts and powering down the processor will get the processor stuck waiting for an interrupt that will never be reacted to. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc32, leon: Remove separate "ticker" timer for SMPAndreas Larsson
This reduces the need from two timers to one timer. Moreover, without this patch, when the "ticker" timer triggers timer_cs_read via tick_periodic it reads the value of the usual timer it can get an wrapped timer value without timer_cs_internal_counter having been updated leading to the clock going backwards. This effectively hangs one cpu that gets stuck in update_wall_time with an offset slightly smaller than 0xffffffffffffffff. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc: kernel: using strlcpy() instead of strcpy()Zhao Hongjiang
'boot_command_line' and 'full_boot_str' has a fix length, 'cmdline_p' and 'boot_command' maybe larger than them. So use strlcpy() instead of strcpy() to avoid memory overflow. Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19arch: sparc: prom: looping issue, need additional length check in the ↵Chen Gang
outside looping When "cp >= barg_buf + BARG_LEN-2", it breaks internel looping 'while', but outside loop 'for' still has effect, so "*cp++ = ' '" will continue repeating which may cause memory overflow. So need additional length check for it in the outside looping. Also beautify the related code which found by "./scripts/checkpatch.pl" Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc: remove inline marking of EXPORT_SYMBOL functionsDenis Efremov
EXPORT_SYMBOL and inline directives are contradictory to each other. The patch fixes this inconsistency. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Denis Efremov <yefremov.denis@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19sparc: Switch to asm-generic/linkage.hGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19mconsole: we'd better initialize pos before passing it to vfs_read()...Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-18x86: fix build error and kconfig for ia32_emulation and binfmtRandy Dunlap
Fix kconfig warning and build errors on x86_64 by selecting BINFMT_ELF when COMPAT_BINFMT_ELF is being selected. warning: (IA32_EMULATION) selects COMPAT_BINFMT_ELF which has unmet direct dependencies (COMPAT && BINFMT_ELF) fs/built-in.o: In function `elf_core_dump': compat_binfmt_elf.c:(.text+0x3e093): undefined reference to `elf_core_extra_phdrs' compat_binfmt_elf.c:(.text+0x3ebcd): undefined reference to `elf_core_extra_data_size' compat_binfmt_elf.c:(.text+0x3eddd): undefined reference to `elf_core_write_extra_phdrs' compat_binfmt_elf.c:(.text+0x3f004): undefined reference to `elf_core_write_extra_data' [ hpa: This was sent to me for -next but it is a low risk build fix ] Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Link: http://lkml.kernel.org/r/51C0B614.5000708@infradead.org Cc: <stable@vger.kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-06-18parisc: Use unshadowed index register for flush instructions in ↵John David Anglin
flush_dcache_page_asm and flush_icache_page_asm The comment at the start of pacache.S states that the base and index registers used for fdc,fic, and pdc instructions should not use shadowed registers. Although this is probably unnecessary for tmpalias flushes, there is also no reason not to comply. Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
2013-06-18parisc: provide pci_mmap_page_range() for pariscThomas Bogendoerfer
pci_mmap_page_range() is needed for X11-server support on C8000 with ATI FireGL card. Signed-off-by Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Helge Deller <deller@gmx.de>
2013-06-18parisc: fix serial ports on C8000 workstationThomas Bogendoerfer
The C8000 workstation (64 bit kernel only) has a somewhat different serial port configuration than other models. Thomas Bogendoerfer sent a patch to fix this in September 2010, which was now minimally modified by me. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Helge Deller <deller@gmx.de>
2013-06-18parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 (part 2)Helge Deller
Make sure that we really return -1 (instead of 0x00ff) as node id for page frame numbers which are not physically available. This finally fixes the kernel panic when running cat /proc/kpageflags /proc/kpagecount. Theoretically this patch now limits the number of physical memory ranges to 127 instead of 254, but currently we have MAX_PHYSMEM_RANGES hardcoded to 8 which is sufficient for all existing parisc machines. Signed-off-by: Helge Deller <deller@gmx.de>
2013-06-18x86, mtrr: Fix original mtrr range get for mtrr_cleanupYinghai Lu
Joshua reported: Commit cd7b304dfaf1 (x86, range: fix missing merge during add range) broke mtrr cleanup on his setup in 3.9.5. corresponding commit in upstream is fbe06b7bae7c. *BAD*gran_size: 64K chunk_size: 16M num_reg: 6 lose cover RAM: -0G https://bugzilla.kernel.org/show_bug.cgi?id=59491 So it rejects new var mtrr layout. It turns out we have some problem with initial mtrr range retrieval. The current sequence is: x86_get_mtrr_mem_range ==> bunchs of add_range_with_merge ==> bunchs of subract_range ==> clean_sort_range add_range_with_merge for [0,1M) sort_range() add_range_with_merge could have blank slots, so we can not just sort only, that will have final result have extra blank slot in head. So move that calling add_range_with_merge for [0,1M), with that we could avoid extra clean_sort_range calling. Reported-by: Joshua Covington <joshuacov@googlemail.com> Tested-by: Joshua Covington <joshuacov@googlemail.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1371154622-8929-2-git-send-email-yinghai@kernel.org Cc: <stable@vger.kernel.org> v3.9 Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-06-18KVM: x86: remove vcpu's CPL check in host-invoked XCR setZhanghaoyu (A)
__kvm_set_xcr function does the CPL check when set xcr. __kvm_set_xcr is called in two flows, one is invoked by guest, call stack shown as below, handle_xsetbv(or xsetbv_interception) kvm_set_xcr __kvm_set_xcr the other one is invoked by host, for example during system reset: kvm_arch_vcpu_ioctl kvm_vcpu_ioctl_x86_set_xcrs __kvm_set_xcr The former does need the CPL check, but the latter does not. Cc: stable@vger.kernel.org Signed-off-by: Zhang Haoyu <haoyu.zhang@huawei.com> [Tweaks to commit message. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-17[IA64] Fix include dependency in asm/irqflags.hDavid Daney
asm/kregs.h isn't always included first, so we need an explicit include. [Fix build breakage introduced by f21afc25f9ed45b8ffe200d0f071b0caec3ed2ef smp.h: Use local_irq_{save,restore}() in !SMP version of on_each_cpu().] Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-06-17ARM: 7759/1: decouple CPU offlining from reboot/shutdownStephen Warren
Add comments to machine_shutdown()/halt()/power_off()/restart() that describe their purpose and/or requirements re: CPUs being active/not. In machine_shutdown(), replace the call to smp_send_stop() with a call to disable_nonboot_cpus(). This completely disables all but one CPU, thus satisfying the requirement that only a single CPU be active for kexec. Adjust Kconfig dependencies for this change. In machine_halt()/power_off()/restart(), call smp_send_stop() directly, rather than via machine_shutdown(); these functions don't need to completely de-activate all CPUs using hotplug, but rather just quiesce them. Remove smp_kill_cpus(), and its call from smp_send_stop(). smp_kill_cpus() was indirectly calling smp_ops.cpu_kill() without calling smp_ops.cpu_die() on the target CPUs first. At least some implementations of smp_ops had issues with this; it caused cpu_kill() to hang on Tegra, for example. Since smp_send_stop() is only used for shutdown, halt, and power-off, there is no need to attempt any kind of CPU hotplug here. Adjust Kconfig to reflect that machine_shutdown() (and hence kexec) relies upon disable_nonboot_cpus(). However, this alone doesn't guarantee that hotplug will work, or even that hotplug is implemented for a particular piece of HW that a multi-platform zImage runs on. Hence, add error-checking to machine_kexec() to determine whether it did work. Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Will Deacon <will.deacon@arm.com> Tested-by: Zhangfei Gao <zhangfei.gao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-17ARM: dts: Correct the base address of pinctrl_3 on Exynos5250Padmavathi Venna
This patch corrects the base address of pinctrl_3 on Exynos5250 platform. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-17ARM: 7756/1: zImage/virt: remove hyp-stub.S during distcleanMagnus Damm
Make sure hyp-stub.S gets removed during make distclean, this left over file was introduced in commit: 424e599 ARM: zImage/virt: hyp mode entry support for the zImage loader Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Dave Martin <dave.martin@linaro.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-17ARM: 7755/1: handle user space mapped pages in flush_kernel_dcache_pageSimon Baatz
Commit f8b63c1 made flush_kernel_dcache_page a no-op assuming that the pages it needs to handle are kernel mapped only. However, for example when doing direct I/O, pages with user space mappings may occur. Thus, continue to do lazy flushing if there are no user space mappings. Otherwise, flush the kernel cache lines directly. Signed-off-by: Simon Baatz <gmbnomis@gmail.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: <stable@vger.kernel.org> # 3.2+ Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-17ARM: 7754/1: Fix the CPU ID and the mask associated to the PJ4BGregory CLEMENT
This commit fixes the ID and mask for the PJ4B which was too restrictive and didn't match the CPU of the Armada 370 SoC. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-17ARM: 7753/1: map_init_section flushes incorrect pmdPo-Yu Chuang
This bug was introduced in commit e651eab0. Some v4/v5 platforms failed to boot due to this. Signed-off-by: Po-Yu Chuang <ratbert.chuang@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>