- 11 4月, 2017 2 次提交
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由 Ingo Molnar 提交于
There's a conflict between ongoing level-5 paging support and the E820 rewrite. Since the E820 rewrite is essentially ready, merge it into x86/mm to reduce tree conflicts. Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
The E820 rework in WIP.x86/boot has gone through a couple of weeks of exposure in -tip, merge it in a wider fashion. Signed-off-by: NIngo Molnar <mingo@kernel.org>
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- 08 4月, 2017 1 次提交
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由 Thomas Gleixner 提交于
This reverts commit 474aeffd due to testing failures. Reported-by: N"Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20170406124459.dwn5zhpr2xqg3lqm@node.shutemov.name
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- 04 4月, 2017 7 次提交
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由 Kirill A. Shutemov 提交于
We don't need extra virtual address space for ESPFIX, so it stays within one PUD page table for both 4- and 5-level paging. Redefining ESPFIX_BASE_ADDR using P4D_SHIFT instead of PGDIR_SHIFT would make it stay in the same place regarding of paging mode. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-8-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Kirill A. Shutemov 提交于
This patch bring support for a non-folded additional page table level. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-7-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Kirill A. Shutemov 提交于
Extends pagetable headers to support the new paging mode. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-6-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Kirill A. Shutemov 提交于
Add operations to allocate/release p4ds. Xen requires more work. We will need to come back to it. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-5-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Kirill A. Shutemov 提交于
The first part of memory map (up to %esp fixup) simply scales existing map for 4-level paging by factor of 9 -- number of bits addressed by the additional page table level. The rest of the map is unchanged. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-4-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Kirill A. Shutemov 提交于
We don't need the assert anymore, as: 17be0aec ("x86/asm/entry/64: Implement better check for canonical addresses") made canonical address checks generic wrt. address width. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-3-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Kirill A. Shutemov 提交于
In this initial implementation we force-require 5-level paging support from the hardware, when compiled with CONFIG_X86_5LEVEL=y. (The kernel will panic during boot on CPUs that don't support 5-level paging.) We will implement boot-time switch between 4- and 5-level paging later. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170330080731.65421-2-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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- 03 4月, 2017 11 次提交
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由 Ingo Molnar 提交于
Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Wei Yang 提交于
numa_nodemask_from_meminfo() generates a nodemask of nodes which have memory according to a meminfo descriptor. The two callsites of that function both set bits in copies of the numa_nodes_parsed nodemask. In both cases, the information in supplied numa_meminfo is a subset of numa_nodes_parsed. So setting those bits again is not really necessary. Here are the three call paths which show that the supplied numa_meminfo argument describes memory regions in nodes which are already in numa_nodes_parsed: x86_numa_init() numa_init() Case 1: acpi_numa_init() acpi_parse_memory_affinity() numa_add_memblk() node_set(numa_nodes_parsed) acpi_parse_slit() acpi_numa_slit_init() numa_set_distance() numa_alloc_distance() numa_nodemask_from_meminfo() Case 2: amd_numa_init() numa_add_memblk() node_set(numa_nodes_parsed) Case 3 dummy_numa_init() node_set(numa_nodes_parsed) numa_add_memblk() numa_register_memblks() numa_nodemask_from_meminfo() Thus, in all three cases, the respective bit in numa_nodes_parsed is set, which means it is not necessary to set it again in a copy of numa_nodes_parsed. So remove that function. Signed-off-by: NWei Yang <richard.weiyang@gmail.com> Cc: x86-ml <x86@kernel.org> Link: http://lkml.kernel.org/r/20170314030801.13656-2-richard.weiyang@gmail.com [ Heavily massage commit message. ] Signed-off-by: NBorislav Petkov <bp@suse.de> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Wei Yang 提交于
alloc_node_data() tries to allocate from the local node first and, if that attempt fails, falls back to any node. Improve the error message to issue the initial node for ease during debugging. Fix a typo in the comments, while at it. Signed-off-by: NWei Yang <richard.weiyang@gmail.com> Link: http://lkml.kernel.org/r/20170314030801.13656-1-richard.weiyang@gmail.com [ Masssage commit message. ] Signed-off-by: NBorislav Petkov <bp@suse.de> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Linus Torvalds 提交于
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git://git.infradead.org/users/vkoul/slave-dma由 Linus Torvalds 提交于
Pull dmaengine fixes from Vinod Koul: "A couple of minor fixes for 4.11: - array bound fix for __get_unmap_pool() - cyclic period splitting for bcm2835" * tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: Fix array index out of bounds warning in __get_unmap_pool() dmaengine: bcm2835: Fix cyclic DMA period splitting
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull x86 fixes from Thomas Gleixner: "This update provides: - prevent KASLR from randomizing EFI regions - restrict the usage of -maccumulate-outgoing-args and document when and why it is required. - make the Global Physical Address calculation for UV4 systems work correctly. - address a copy->paste->forgot-edit problem in the MCE exception table entries. - assign a name to AMD MCA bank 3, so the sysfs file registration works. - add a missing include in the boot code" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Include missing header file x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs x86/build: Mostly disable '-maccumulate-outgoing-args' x86/mm/KASLR: Exclude EFI region from KASLR VA space randomization x86/mce: Fix copy/paste error in exception table entries x86/platform/uv: Fix calculation of Global Physical Address
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull scheduler fixes from Thomas Gleixner: "This update provides: - make the scheduler clock switch to unstable mode smooth so the timestamps stay at microseconds granularity instead of switching to tick granularity. - unbreak perf test tsc by taking the new offset into account which was added in order to proveide better sched clock continuity - switching sched clock to unstable mode runs all clock related computations which affect the sched clock output itself from a work queue. In case of preemption sched clock uses half updated data and provides wrong timestamps. Keep the math in the protected context and delegate only the static key switch to workqueue context. - remove a duplicate header include" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/headers: Remove duplicate #include <linux/sched/debug.h> line sched/clock: Fix broken stable to unstable transfer sched/clock, x86/perf: Fix "perf test tsc" sched/clock: Fix clear_sched_clock_stable() preempt wobbly
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull EFI fix from Thomas Gleixner: "Downgrade the missing ESRT header printk to warning level and remove a useless error printk which just generates noise for no value" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/esrt: Cleanup bad memory map log messages
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull timer fixes from Thomas Gleixner: "Two small fixes for the new CLKEVT_OF infrastructure" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: vmlinux.lds: Add __clkevt_of_table to kernel clockevents: Fix syntax error in clkevt-of macro
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull irq fixes from Thomas Gleixner: "Two small fixlets: - select a required Kconfig to make the MVEBU driver compile - add the missing MIPS local GIC interrupts which prevent drivers to probe successfully" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips-gic: Fix Local compare interrupt irqchip/mvebu-odmi: Select GENERIC_MSI_IRQ_DOMAIN
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull core fix from Thomas Gleixner: "Prevent leaking kernel memory via /proc/$pid/syscall when the queried task is not in a syscall" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lib/syscall: Clear return values when no stack
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- 02 4月, 2017 10 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux由 Linus Torvalds 提交于
Pull parisc fixes from Helge Deller: "Al Viro reported that - in case of read faults - our copy_from_user() implementation may claim to have copied more bytes than it actually did. In order to fix this bug and because of the way how gcc optimizes register usage for inline assembly in C code, we had to replace our pa_memcpy() function with a pure assembler implementation. While fixing the memcpy bug we noticed some other issues with our get_user() and put_user() functions, e.g. nested faults may return wrong data. This is now fixed by a common fixup handler for get_user/put_user in the exception handler which additionally makes generated code smaller and faster. The third patch is a trivial one-line fix for a patch which went in during 4.11-rc and which avoids stalled CPU warnings after power shutdown (for parisc machines which can't plug power off themselves). Due to the rewrite of pa_memcpy() into assembly this patch got bigger than what I wanted to have sent at this stage. Those patches have been running in production during the last few days on our debian build servers without any further issues" * 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Avoid stalled CPU warnings after system shutdown parisc: Clean up fixup routines for get_user()/put_user() parisc: Fix access fault handling in pa_memcpy()
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull SCSI fixes from James Bottomley: "Thirteen small fixes: The hopefully final effort to get the lpfc nvme kconfig problems sorted, there's one important sg fix (user can induce read after end of buffer) and one minor enhancement (adding an extra PCI ID to qedi). The rest are a set of minor fixes, which mostly occur as user visible in error legs or on specific devices" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: remove the duplicated checking for supporting clkscaling scsi: lpfc: fix building without debugfs support scsi: lpfc: Fix PT2PT PRLI reject scsi: hpsa: fix volume offline state scsi: libsas: fix ata xfer length scsi: scsi_dh_alua: Warn if the first argument of alua_rtpg_queue() is NULL scsi: scsi_dh_alua: Ensure that alua_activate() calls the completion function scsi: scsi_dh_alua: Check scsi_device_get() return value scsi: sg: check length passed to SG_NEXT_CMD_LEN scsi: ufshcd-platform: remove the useless cast in ERR_PTR/IS_ERR scsi: qedi: Add PCI device-ID for QL41xxx adapters. scsi: aacraid: Fix potential null access scsi: qla2xxx: Fix crash in qla2xxx_eh_abort on bad ptr
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由 Linus Torvalds 提交于
Merge misc fixes from Andrew Morton: "11 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: kasan: do not sanitize kexec purgatory drivers/rapidio/devices/tsi721.c: make module parameter variable name unique mm/hugetlb.c: don't call region_abort if region_chg fails kasan: report only the first error by default hugetlbfs: initialize shared policy as part of inode allocation mm: fix section name for .data..ro_after_init mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd() mm: workingset: fix premature shadow node shrinking with cgroups mm: rmap: fix huge file mmap accounting in the memcg stats mm: move mm_percpu_wq initialization earlier mm: migrate: fix remove_migration_pte() for ksm pages
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb由 Linus Torvalds 提交于
Pull USB fixes from Greg KH: "Here are some small USB fixes for 4.11-rc5. The usual xhci fixes are here, as well as a fix for yet-another-bug- found-by-KASAN, those developers are doing great stuff here. And there's a phy build warning fix that showed up in 4.11-rc1. All of these have been in linux-next with no reported issues" * tag 'usb-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled xhci: Manually give back cancelled URB if we can't queue it for cancel xhci: Set URB actual length for stopped control transfers xhci: plat: Register shutdown for xhci_plat USB: fix linked-list corruption in rh_call_control()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty由 Linus Torvalds 提交于
Pull tty/serial fixes from Greg KH: "Here are some small fixes for some serial drivers and Kconfig help text for 4.11-rc5. Nothing major here at all, a few things resolving reported bugs in some random serial drivers. I don't think these made the last linux-next due to me getting to them yesterday, but I am not sure, they might have snuck in. The patches only affect drivers that the maintainers of sent me these patches for, so we should be safe here :)" * tag 'tty-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: pl011: fix earlycon work-around for QDF2400 erratum 44 serial: 8250_EXAR: fix duplicate Kconfig text and add missing help text tty/serial: atmel: fix TX path in atmel_console_write() tty/serial: atmel: fix race condition (TX+DMA) serial: mxs-auart: Fix baudrate calculation
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull ACPI fixes from Rafael Wysocki: "These fix two issues related to IOAPIC hotplug, an overzealous build optimization that prevents the function graph tracer from working with the ACPI subsystem correctly and an RCU synchronization issue in the ACPI APEI code. Specifics: - drop the unconditional setting of the '-Os' gcc flag from the ACPI Makefile to make the function graph tracer work correctly with the ACPI subsystem (Josh Poimboeuf). - add missing synchronize_rcu() to ghes_remove() which removes an element from an RCU-protected list, but fails to synchronize it properly afterward (James Morse). - fix two problems related to IOAPIC hotplug, a local variable initialization in setup_res() and the creation of platform device objects for IO(x)APICs which are (a) unused and (b) leaked on hot-removal (Joerg Roedel)" * tag 'acpi-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: Fix incompatibility with mcount-based function graph tracing ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal ACPI: Do not create a platform_device for IOAPIC/IOxAPIC ACPI: ioapic: Clear on-stack resource before using it
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull power management fixes from Rafael Wysocki: "These fix a cpufreq core issue with the initialization of the cpufreq sysfs interface and a cpuidle powernv driver initialization issue. Specifics: - symbolic links from CPU directories to the corresponding cpufreq policy directories in sysfs are not created during initialization in some cases which confuses user space, so prevent that from happening (Rafael Wysocki). - the powernv cpuidle driver fails to pass a correct cpumaks to the cpuidle core in some cases which causes subsequent failures to occur, so fix it (Vaidyanathan Srinivasan)" * tag 'pm-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpuidle: powernv: Pass correct drv->cpumask for registration cpufreq: Fix creation of symbolic links to policy directories
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux由 Linus Torvalds 提交于
Pull i2c fixes from Wolfram Sang: "Two bugfixes from I2C, specifically the I2C mux section. Thanks to peda for collecting them" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: mux: pca954x: Add missing pca9546 definition to chip_desc Revert "i2c: mux: pca954x: Add ACPI support for pca954x"
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc由 Linus Torvalds 提交于
Pull ARC fixes from Vineet Gupta: "Accumulated fixes for ARC which I've been been sitting on for a while: - reading clk from driver vs device tree [Vlad] - fix support for UIO in VDK platform [Alexey] - SLC busy bit reading workaround - build warning with kprobes header reorg" * tag 'arc-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: fix build warnings with !CONFIG_KPROBES ARCv2: SLC: Make sure busy bit is set properly on SLC flushing ARC: vdk: Fix support of UIO ARCv2: make unimplemented vectors as no-ops rather than halt core ARC: get rate from clk driver instead of reading device tree ARC: [dts] add cpu nodes to ARCHS SMP device tree ARC: [dts] add input clocks for cpu nodes
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git://linux-nfs.org/~bfields/linux由 Linus Torvalds 提交于
Pull nfsd fixes from Bruce Fields: "The restriction of NFSv4 to TCP went overboard and also broke the backchannel; fix. Also some minor refinements to the nfsd version-setting interface that we'd like to get fixed before release" * tag 'nfsd-4.11-1' of git://linux-nfs.org/~bfields/linux: svcrdma: set XPT_CONG_CTRL flag for bc xprt NFSD: fix nfsd_reset_versions for NFSv4. NFSD: fix nfsd_minorversion(.., NFSD_AVAIL) NFSD: further refinement of content of /proc/fs/nfsd/versions nfsd: map the ENOKEY to nfserr_perm for avoiding warning SUNRPC/backchanel: set XPT_CONG_CTRL flag for bc xprt
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- 01 4月, 2017 9 次提交
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由 Timur Tabi 提交于
The work-around for the Qualcomm Datacenter Technologies QDF2400 erratum 44 sets the "qdf2400_e44_present" global variable if the work-around is needed. However, this check does not happen until after earlycon is initialized, which means the work-around is not used, and the console hangs as soon as it displays one character. Fixes: d8a4995b ("tty: pl011: Work around QDF2400 E44 stuck BUSY bit") Signed-off-by: NTimur Tabi <timur@codeaurora.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs由 Linus Torvalds 提交于
Pull btrfs fixes from Chris Mason: "We have three small fixes queued up in my for-linus-4.11 branch" * 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix an integer overflow check btrfs: Change qgroup_meta_rsv to 64bit Btrfs: bring back repair during read
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由 Mike Galbraith 提交于
Fixes this: kexec: Undefined symbol: __asan_load8_noabort kexec-bzImage64: Loading purgatory failed Link: http://lkml.kernel.org/r/1489672155.4458.7.camel@gmx.deSigned-off-by: NMike Galbraith <efault@gmx.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
kbuild test robot reported a non-static variable name collision between a staging driver and a RapidIO driver, with a generic variable name of 'dbg_level'. Both drivers should be changed so that they don't use this generic public variable name. This patch fixes the RapidIO driver but does not change the user interface (name) for the module parameter. drivers/staging/built-in.o:(.bss+0x109d0): multiple definition of `dbg_level' drivers/rapidio/built-in.o:(.bss+0x16c): first defined here Link: http://lkml.kernel.org/r/ab527fc5-aa3c-4b07-5d48-eef5de703192@infradead.orgSigned-off-by: NRandy Dunlap <rdunlap@infradead.org> Reported-by: Nkbuild test robot <fengguang.wu@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mike Kravetz 提交于
Changes to hugetlbfs reservation maps is a two step process. The first step is a call to region_chg to determine what needs to be changed, and prepare that change. This should be followed by a call to call to region_add to commit the change, or region_abort to abort the change. The error path in hugetlb_reserve_pages called region_abort after a failed call to region_chg. As a result, the adds_in_progress counter in the reservation map is off by 1. This is caught by a VM_BUG_ON in resv_map_release when the reservation map is freed. syzkaller fuzzer (when using an injected kmalloc failure) found this bug, that resulted in the following: kernel BUG at mm/hugetlb.c:742! Call Trace: hugetlbfs_evict_inode+0x7b/0xa0 fs/hugetlbfs/inode.c:493 evict+0x481/0x920 fs/inode.c:553 iput_final fs/inode.c:1515 [inline] iput+0x62b/0xa20 fs/inode.c:1542 hugetlb_file_setup+0x593/0x9f0 fs/hugetlbfs/inode.c:1306 newseg+0x422/0xd30 ipc/shm.c:575 ipcget_new ipc/util.c:285 [inline] ipcget+0x21e/0x580 ipc/util.c:639 SYSC_shmget ipc/shm.c:673 [inline] SyS_shmget+0x158/0x230 ipc/shm.c:657 entry_SYSCALL_64_fastpath+0x1f/0xc2 RIP: resv_map_release+0x265/0x330 mm/hugetlb.c:742 Link: http://lkml.kernel.org/r/1490821682-23228-1-git-send-email-mike.kravetz@oracle.comSigned-off-by: NMike Kravetz <mike.kravetz@oracle.com> Reported-by: NDmitry Vyukov <dvyukov@google.com> Acked-by: NHillf Danton <hillf.zj@alibaba-inc.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mark Rutland 提交于
Disable kasan after the first report. There are several reasons for this: - Single bug quite often has multiple invalid memory accesses causing storm in the dmesg. - Write OOB access might corrupt metadata so the next report will print bogus alloc/free stacktraces. - Reports after the first easily could be not bugs by itself but just side effects of the first one. Given that multiple reports usually only do harm, it makes sense to disable kasan after the first one. If user wants to see all the reports, the boot-time parameter kasan_multi_shot must be used. [aryabinin@virtuozzo.com: wrote changelog and doc, added missing include] Link: http://lkml.kernel.org/r/20170323154416.30257-1-aryabinin@virtuozzo.comSigned-off-by: NMark Rutland <mark.rutland@arm.com> Signed-off-by: NAndrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mike Kravetz 提交于
Any time after inode allocation, destroy_inode can be called. The hugetlbfs inode contains a shared_policy structure, and mpol_free_shared_policy is unconditionally called as part of hugetlbfs_destroy_inode. Initialize the policy as part of inode allocation so that any quick (error path) calls to destroy_inode will be handed an initialized policy. syzkaller fuzzer found this bug, that resulted in the following: BUG: KASAN: user-memory-access in atomic_inc include/asm-generic/atomic-instrumented.h:87 [inline] at addr 000000131730bd7a BUG: KASAN: user-memory-access in __lock_acquire+0x21a/0x3a80 kernel/locking/lockdep.c:3239 at addr 000000131730bd7a Write of size 4 by task syz-executor6/14086 CPU: 3 PID: 14086 Comm: syz-executor6 Not tainted 4.11.0-rc3+ #364 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: atomic_inc include/asm-generic/atomic-instrumented.h:87 [inline] __lock_acquire+0x21a/0x3a80 kernel/locking/lockdep.c:3239 lock_acquire+0x1ee/0x590 kernel/locking/lockdep.c:3762 __raw_write_lock include/linux/rwlock_api_smp.h:210 [inline] _raw_write_lock+0x33/0x50 kernel/locking/spinlock.c:295 mpol_free_shared_policy+0x43/0xb0 mm/mempolicy.c:2536 hugetlbfs_destroy_inode+0xca/0x120 fs/hugetlbfs/inode.c:952 alloc_inode+0x10d/0x180 fs/inode.c:216 new_inode_pseudo+0x69/0x190 fs/inode.c:889 new_inode+0x1c/0x40 fs/inode.c:918 hugetlbfs_get_inode+0x40/0x420 fs/hugetlbfs/inode.c:734 hugetlb_file_setup+0x329/0x9f0 fs/hugetlbfs/inode.c:1282 newseg+0x422/0xd30 ipc/shm.c:575 ipcget_new ipc/util.c:285 [inline] ipcget+0x21e/0x580 ipc/util.c:639 SYSC_shmget ipc/shm.c:673 [inline] SyS_shmget+0x158/0x230 ipc/shm.c:657 entry_SYSCALL_64_fastpath+0x1f/0xc2 Analysis provided by Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Link: http://lkml.kernel.org/r/1490477850-7944-1-git-send-email-mike.kravetz@oracle.comSigned-off-by: NMike Kravetz <mike.kravetz@oracle.com> Reported-by: NDmitry Vyukov <dvyukov@google.com> Acked-by: NHillf Danton <hillf.zj@alibaba-inc.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Michal Hocko <mhocko@suse.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kees Cook 提交于
A section name for .data..ro_after_init was added by both: commit d07a980c ("s390: add proper __ro_after_init support") and commit d7c19b06 ("mm: kmemleak: scan .data.ro_after_init") The latter adds incorrect wrapping around the existing s390 section, and came later. I'd prefer the s390 naming, so this moves the s390-specific name up to the asm-generic/sections.h and renames the section as used by kmemleak (and in the future, kernel/extable.c). Link: http://lkml.kernel.org/r/20170327192213.GA129375@beastSigned-off-by: NKees Cook <keescook@chromium.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390 parts] Acked-by: NJakub Kicinski <jakub.kicinski@netronome.com> Cc: Eddie Kovsky <ewk@edkovsky.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Naoya Horiguchi 提交于
I found the race condition which triggers the following bug when move_pages() and soft offline are called on a single hugetlb page concurrently. Soft offlining page 0x119400 at 0x700000000000 BUG: unable to handle kernel paging request at ffffea0011943820 IP: follow_huge_pmd+0x143/0x190 PGD 7ffd2067 PUD 7ffd1067 PMD 0 [61163.582052] Oops: 0000 [#1] SMP Modules linked in: binfmt_misc ppdev virtio_balloon parport_pc pcspkr i2c_piix4 parport i2c_core acpi_cpufreq ip_tables xfs libcrc32c ata_generic pata_acpi virtio_blk 8139too crc32c_intel ata_piix serio_raw libata virtio_pci 8139cp virtio_ring virtio mii floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: cap_check] CPU: 0 PID: 22573 Comm: iterate_numa_mo Tainted: P OE 4.11.0-rc2-mm1+ #2 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 RIP: 0010:follow_huge_pmd+0x143/0x190 RSP: 0018:ffffc90004bdbcd0 EFLAGS: 00010202 RAX: 0000000465003e80 RBX: ffffea0004e34d30 RCX: 00003ffffffff000 RDX: 0000000011943800 RSI: 0000000000080001 RDI: 0000000465003e80 RBP: ffffc90004bdbd18 R08: 0000000000000000 R09: ffff880138d34000 R10: ffffea0004650000 R11: 0000000000c363b0 R12: ffffea0011943800 R13: ffff8801b8d34000 R14: ffffea0000000000 R15: 000077ff80000000 FS: 00007fc977710740(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea0011943820 CR3: 000000007a746000 CR4: 00000000001406f0 Call Trace: follow_page_mask+0x270/0x550 SYSC_move_pages+0x4ea/0x8f0 SyS_move_pages+0xe/0x10 do_syscall_64+0x67/0x180 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x7fc976e03949 RSP: 002b:00007ffe72221d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000117 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc976e03949 RDX: 0000000000c22390 RSI: 0000000000001400 RDI: 0000000000005827 RBP: 00007ffe72221e00 R08: 0000000000c2c3a0 R09: 0000000000000004 R10: 0000000000c363b0 R11: 0000000000000246 R12: 0000000000400650 R13: 00007ffe72221ee0 R14: 0000000000000000 R15: 0000000000000000 Code: 81 e4 ff ff 1f 00 48 21 c2 49 c1 ec 0c 48 c1 ea 0c 4c 01 e2 49 bc 00 00 00 00 00 ea ff ff 48 c1 e2 06 49 01 d4 f6 45 bc 04 74 90 <49> 8b 7c 24 20 40 f6 c7 01 75 2b 4c 89 e7 8b 47 1c 85 c0 7e 2a RIP: follow_huge_pmd+0x143/0x190 RSP: ffffc90004bdbcd0 CR2: ffffea0011943820 ---[ end trace e4f81353a2d23232 ]--- Kernel panic - not syncing: Fatal exception Kernel Offset: disabled This bug is triggered when pmd_present() returns true for non-present hugetlb, so fixing the present check in follow_huge_pmd() prevents it. Using pmd_present() to determine present/non-present for hugetlb is not correct, because pmd_present() checks multiple bits (not only _PAGE_PRESENT) for historical reason and it can misjudge hugetlb state. Fixes: e66f17ff ("mm/hugetlb: take page table lock in follow_huge_pmd()") Link: http://lkml.kernel.org/r/1490149898-20231-1-git-send-email-n-horiguchi@ah.jp.nec.comSigned-off-by: NNaoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: NHillf Danton <hillf.zj@alibaba-inc.com> Cc: Hugh Dickins <hughd@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: <stable@vger.kernel.org> [4.0+] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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